Top 45 How To Measure Transmission Temperature 9101 Votes This Answer

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A transmission temp gauge must be installed with the accompanying sensor that screws into the transmission’s fluid pan that you must also install. While you’re at it, put a drain plug in the pan, too. Saves grief down the road during fluid/filter changes. An Oil Temp gauge is recommended at the same time.Install the scan tool, start the vehicle and look for the transmission temperature. The fluid temperature should be between the 185- and 194-degree marks with an idle of 600 to 800 rpms. Remove the bolts and clips from the front fender well on the driver’s side, and locate the transmission fill plug; remove it.Normal operating temperature for an automatic transmission is about the same as the engine temperature, i.e., about 195°F. The temperature inside the torque converter, while pulling a big load from a standing start, could easily rise above 350°F. Fluid breakdown often results in harsh shifting and slip-bump concerns.

How do I check my transmission temperature?

Install the scan tool, start the vehicle and look for the transmission temperature. The fluid temperature should be between the 185- and 194-degree marks with an idle of 600 to 800 rpms. Remove the bolts and clips from the front fender well on the driver’s side, and locate the transmission fill plug; remove it.

What is a normal temperature for a transmission?

Normal operating temperature for an automatic transmission is about the same as the engine temperature, i.e., about 195°F. The temperature inside the torque converter, while pulling a big load from a standing start, could easily rise above 350°F. Fluid breakdown often results in harsh shifting and slip-bump concerns.

How do you know if your transmission is overheating?

Is My Transmission Overheating?
  1. A sudden experience of a burning odor inside and outside the vehicle.
  2. The gears “slipping” when accelerating or decelerating.
  3. A feeling of hesitation or delayed gear shift when you are driving.
  4. Any grinding or shaking sensation that occurs while accelerating or while idling.

Do u Check transmission fluid hot or cold?

If you’re going to be checking the transmission fluid level at home, it’s a good idea to warm up the car before you do so. If the car is checked while the engine is cold, it might give an inaccurate reading when you use the dipstick. After driving for about 10 minutes, park on an even surface and leave it running.

Do you need a transmission temperature gauge?

The transmission temperature gauge shows you how warm your temperatures are. This vital information should make you pull over before they get too high. This will save your transmission as well as provide additional insurance since you understand where your transmission temperatures are.

Why is my transmission temperature low?

Causes of Low Transmission Temperature

The most common cause of cold transmission fluid is cold weather, but overheating is the cause of the majority of transmission failures. Overheating can cause several critical problems with the transmission.

What is normal transmission temperature in Celsius?

It doesn’t take long for the automatic transmission fluid (ATF) to heat up once the vehicle is in motion. Normal driving will raise fluid temperatures to 80 degrees C., which is the usual temperature range at which most fluids are designed to operate.

How do I cool down my transmission?

The best way to cool down your transmission is to turn off the vehicle, let it cool down and then start it again. You will need to follow the transmission warning light, and it’s best to wait a few minutes before attempting a quick shift. A properly functioning transmission can reduce the risk of an oily transmission.

What temperature does ATF break down?

At approximately 295 degrees, transmission clutch plates begin to slip because the oil is breaking down further; at roughly 315 degrees, seals and clutches effectively burn out.

What causes high transmission temp?

Low fluid levels or old transmission fluid causes friction between the parts and causes overheating. Fluid problems are the most common reason for transmissions overheating.

Does OBD fusion read transmission temp?

With the Veepeak and OBD Fusion App you can monitor precise temperature, voltage, PSI, state of important variables.

Can transmission temp be too low?

The ideal temperature for it is 175 degrees, plus or minus 25 degrees, and when the transmission gets below zero degrees, it gets too thick. The fluid can also fail to lubricate parts when it is too cold, wearing parts down unnecessarily.

Why is my transmission temp high?

Old, worn out, or burned fluid will cause the transmission to run hot. Transmission slipping is another hint that the fluid is low and old. A defective solenoid can cause the transmission to run hot. Driving habits, conditions, and weather are other possible causes of transmission overheating.

How hot does the transmission fluid get?

A transmission operating temperature normally tends to be anywhere from 175 to 200 degrees, with the fluid inside ranging between 185-194 degrees Fahrenheit.


HOW TO CHECK TRANSMISSION OIL TEMPERATURE demonstrated on BMW
HOW TO CHECK TRANSMISSION OIL TEMPERATURE demonstrated on BMW


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No Dipsticks Allowed: A Guide to Transmission Services Without Dipsticks | 2019-02-01 | NOLN

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  • Most searched keywords: Whether you are looking for No Dipsticks Allowed: A Guide to Transmission Services Without Dipsticks | 2019-02-01 | NOLN Updating Remember the good ‘ol days when every transmission had a dipstick. Those days are gone, but NOLN’s guide to transmission services without dipticks is here.dipsticks, motor oil, transmission fluid, change service, oil change, quick lube, fast lube, automotive, car care
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Safety First

Having ‘The Talk’

What’s in Your Basket

To Touch a Wall

2017 Fast Lube Operator Survey

2014 Fast Lube Operator Survey

2018 Fast Lube Operator Survey

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GlowShift | How To Install A Transmission Temperature Gauge – YouTube

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  • Most searched keywords: Whether you are looking for GlowShift | How To Install A Transmission Temperature Gauge – YouTube Updating GlowShift’s 7 Color Series Transmission Temperature Gauge is perfect for any vehicle with an automatic transmission; especially diesel trucks tow heavy loads…How To Install A Transmission Temperature Gauge, how to install a trans temp gauge, trans temp gauge, transmission temerature gauge, glowshift, glowshift gauges, glowshift install, glowshift gauges install, glowshift gauges installation, glowshift installation, trans temp install, transmission temperature install, trans temp gauge install, trans temp gauge installation, trans temp installation
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GlowShift | How To Install A Transmission Temperature Gauge - YouTube
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Checking the Automatic Transmission Fluid Temperature in an Aston Martin DB9 – Aston 1936

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  • Most searched keywords: Whether you are looking for Checking the Automatic Transmission Fluid Temperature in an Aston Martin DB9 – Aston 1936 The less precise way to measure the flu temperature will be to use a non-contact infrared thermometer. Essentially this is very cool device … Why the heck would you care what your Automatic Transmission Fluid temperature was in your DB9?   Most  DB9’s, DBS and Rapides between 2004 and 2014 were fitted with a 6-speed  ZF HP626 automatic transmission.  I’ve written an extensive article about the transmission here, and it also concludes that the transmission fluid should be changed at…
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Checking the Automatic Transmission Fluid Temperature in an Aston Martin DB9 – Aston 1936
Checking the Automatic Transmission Fluid Temperature in an Aston Martin DB9 – Aston 1936

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What is a Transmission Temperature Gauge (And Why It’s Important)?

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What is a Transmission Temperature Gauge

Why Do You Need a Transmission Temperature Gauge

How Does a Transmission Temperature Gauge Work

How to Install a Transmission Temperature Gauge

Installing The Transmission Temperature Sensor

Some of the Best Transmission Temperature Gauge

Conclusion

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What is a Transmission Temperature Gauge (And Why It's Important)?
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Need a method of measuring Transmission Temp | Tacoma World

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No Dipsticks Allowed: A Guide to Transmission Services Without Dipsticks

Out with the old, and in with the new.

“Oil pressure up, checking transmission fluid (pulls dipstick and stares at it for a few seconds). Transmission fluid level full.” Remember the good ol’ days — the easy life. It was 5W-30 vs. 10W-30, pushing the button on the Honda instrument panel with the key to reset the oil change indicator and pulling a dipstick to check the fluid level of a transmission. These quick and simple procedures made life fun in the service bay. Now we have to check viscosity and an alphabet soup of standards (API, ILSAC, ACEA), look up a slew of videos and manuals to reset the oil light and, you guessed it, transmission dipsticks have found their way out of the engine.

For years, several manufacturers have begun removing the transmission dipstick and replacing the drain plug with a combination drain plug and standpipe. If you can imagine, a straw or snorkel tip comes up from inside the drain hole to a level just above the appropriate fluid level in a transmission. If you were to remove that drain plug, the excess fluid would drain out of the plug, leaving the transmission fluid level just right. Just like a simple differential check.

But wait, there’s more!

Remember the cross-stitch on good ol’ transmission fluid dipsticks. The cross-stitch area was there to allow you to read the fluid level without compensating for temperature because transmission fluid expands when hot and alters the level inside the transmission. The issue is that a standpipe inside a transmission pan cannot account for the level of the transmission fluid with varying temperatures. The example we will use today is the Toyota 2007 and up six-speed transmission for front-wheel drive. According to Toyota, the ideal time to inspect the transmission fluid level is when the temperature of the fluid is between 104 and 113 F. You are generally checking the fluid level in your shop that is around 190 F.

Most manufacturers with this style of standpipe system will have you adjust the temperature of the fluid (perhaps park it for a bit). Toyota has come up with a special group of tools to help you check the fluid levels in their vehicles. And the price for these tools is just as ugly as the procedures to use these tools in your shop. In this instance, we will be referencing the Toyota TSB 0036-13 for a variety of vehicles years 2007-2013.

Safety First

These procedures will require you to do a few things that will make your risk manager or insurance company start looking for the key to the liquor cabinet. You will need to access parts inside a wheel well while the engine is on, remove plugs and attach tools on a running engine and remove fluid that is 190 F. So please let’s make sure all our body parts stay in the same shape and condition that they were before the service started! That means, wear your safety glasses, burn sleeves, gloves and restrain the vehicle by suspension, blocking or emergency brake.

Tools

To correctly perform these procedures, you will need:

Trim clip removal tool

Socket set

6 mm hexagon socket wrench

Scan tool with techstream installed

ATF leveling gauge kit

Vacuum regulator manifold

Transmission fill adapter

Fluid extraction tank

Transmission fill system

Fluid Check Procedures

Install the scan tool, start the vehicle and look for the transmission temperature. The fluid temperature should be between the 185- and 194-degree marks with an idle of 600 to 800 rpms. Remove the bolts and clips from the front fender well on the driver’s side, and locate the transmission fill plug; remove it. The OEM plug will have a “WS,” which stands for world standard. This is easier to be accessed if the vehicle is on a lift. Install the transmission fill adapter (hand tight) into the fill hole. Attach the vacuum regulator manifold to the fill adapter. Attach the vacuum regulator manifold to the fluid extraction tank and connect the shop air supply to the manifold (ensure that the shop supply does not exceed 100 psi). Open both the upper and lower valves, and set your regulator between 2 and 5 in. Hg. Locate the transmission drain plug, and remove the plug. Fluid will not drain if the vacuum on the system remains. Install the level gauge (hand tight) into the drain plug, and adjust the gauge to the proper height as specified by the temperature and rpms inside the bulletin. This will extend the level of the standpipe to the appropriate level, given the operating conditions. Turn off the vacuum to the transmission, and determine if fluid comes out of the level gauge.

If fluid drains out, the transmission was overfilled. Allow it to drip dry. If fluid does not come out, this means that either the fluid level is low or just right. You will need to add transmission fluid to determine which scenario is correct.

Fluid Fill Procedures

Remove the vacuum regulator quick connect from the transmission fill adaptor. Connect the transmission fill system to the transmission fill adaptor. Add fluid until fluid begins to drain from the level gauge. Stop adding fluid, and allow the level gauge to drip dry. Remove the transmission fill system from the transmission fill adaptor.

Reinstalling The Plug

You must now reverse your steps to finish your transmission fluid level check.

Install the vacuum manifold and fluid extraction system to the transmission fill adapter. Connect air and set gauge between 2-5 in. Hg. and open both valves. Bring the leveling gauge back to the beginning height, and remove it from the transmission drain hole. Reinstall the drain plug to torque specs. Turn off the air supply, and remove the fluid extraction system, vacuum manifold and transmission fill adapter. Install the transmission fill plug to torque specs. Install fender well, lower vehicle, disconnect the scan tool and turn off the engine.

Should We Even Be Doing This?

It is the opinion of many on the AOCA Talk, that because of the amount of time and money to complete this service, it should not be a normal part of your service routine. Fluid level in this scenario should only be serviced if there is an obvious leak, performance issues or a service on the transmission is being done. And due to the fact that this procedure can take up to 20 minutes and the cost of this equipment can set you back over $1,000, you may also consider if you should charge the customer just to check the fluid on the transmission.

The battles we lose to the dealership are due to the inability for our industry to keep up with the growing technical challenges produced by today’s OEMs. While this is a small change in the way we process a vehicle, more and more adjustments are made to force you into saying either “We don’t do that,” or, hopefully, “Of course, we can do that.” The key is education and communication. Take the time to understand what this will do for your shop(s) today and down the road. Make the plan on how you will address this issue, and be prepared to communicate with your shop and your customers on what should be done.

All of us old-timers miss the good ol’ days with easy procedures, quick turnarounds and simple products. Manufacturers are not making those vehicles anymore, and our customers are not driving them anymore. The transmission service is a huge reminder of these current times. This very expensive and timely procedure is just one of the many changes happening in our shops. Your business plan has to take into account what is changing in technology with your customer’s vehicles and how you are going to help them.

Transmission Temperature Gauge: A Brief Guide

Transmission Temperature Gauge: A Brief Guide

A big problem that can shorten the life of a transmission is overheating, so it’s up to you to make sure it doesn’t happen. It is estimated that around 90% of automatic transmission failures are caused by transmission overheating alone, and the main reason transmissions overheat is because of overworked transmission fluid. Fluid that has outlived its usefulness or has to work in high heat is less efficient at providing the many functions it was intended for, such as lubrication, fluid pressure, and cooling. Heat and age are mainly what causes transmission fluid to degrade, and this only leads to more overheating.

The ideal range for fluid temperature is between 175 and 225 degrees, and every 20 degree drop in fluid temperature can help to double the life of your transmission. But there’s no way to tell how hot a transmission is you might say, or is there? Actually there is, and that’s exactly what a transmission temperature gauge is for.

Transmission Temperature Gauge: A Brief Guide

Installing a transmission temp gauge as well as a dedicated transmission cooler are the best ways to prevent overheating. With a temperature gauge, you’ll be able to keep track of the transmission’s operating temperature by measuring the transmission fluid’s temperature. This will give you vital signs of when you’re working your transmission too hard, and can warn you when excessive heat is possibly ruining the transmission fluid or damaging the transmission. This could potentially save you from costly repairs in the future and ensures that your transmission is working at peak efficiency.

Most transmission temp gauge kits will come with everything you’ll need to install it correctly, including the sending unit, mounting hardware, terminals, and installation instructions. Some kits might not provide wire however so make sure you check beforehand. The sending unit is what will measure the transmission fluid’s temperature and there are two common installations that won’t require welding: either through the transmission test port or the stock sensor location. Of course, you could also weld the sensor to the transmission pan itself, which will require drilling a hole first.

Best Transmission Temperature Gauge Comparison

Our comparison chart includes the best transmission temperature gauges in our opinion, factoring in things such as fast and accurate readings, reliability, durability, temperature range, price, and extra functions. For our list, we’ve included transmission temp gauges from well known automotive accessory companies such as Auto Meter, GlowShift, and Derale.

You can also find more transmission temperature gauges here.

How to Install a Transmission Temperature Gauge

For a step-by-step guide on how to install a transmission temperature gauge, visit this page.

Checking the Automatic Transmission Fluid Temperature in an Aston Martin DB9

Why the heck would you care what your Automatic Transmission Fluid temperature was in your DB9? Most DB9’s, DBS and Rapides between 2004 and 2014 were fitted with a 6-speed ZF HP626 automatic transmission. I’ve written an extensive article about the transmission here, and it also concludes that the transmission fluid should be changed at least every 8 years. If you are going to change you transmission fluid (check out my video on how to do that here), or, merely want to check the level is correct (check this article), you need to do this when the fluid is between 30°C and 50°C with the engine running and idling. Too cold or too hot, you’ll have an incorrect level. Let me show you how you can check it properly.

The big challenge is that the fluid is inside the transmission and actively circulating because the engine is idling. How can you measure it? We have two options really.

Infrared Thermometer

The less precise way to measure the fluid temperature will be to use a non-contact infrared thermometer. Essentially this is very cool device that will read the surface temperature of most anything you point it at. It even has a cool red laser dot to see where its pointed. You can get one like I did for about $23 USD from Amazon.com.

The idea with this is that you open up the fill plug and rely on a small stream of fluid to come dribbling out of the transmission, and measure the temperature of the fluid stream with this thermometer. The problem with this approach is that there needs to be a big enough target (stream) for it to get a reading from. If your fluid level is just perfect, there should be no more that a drip/drizzle, so there won’t be a sufficient stream to measure.

Alternatively, you can point it at the black plastic oil pan that makes up the sump of the transmission. It will be filled with the fluid, but there will be a large delay between the actual fluid temperature inside it and the exterior surface temperature of the sump. The actual fluid could be many degrees hotter than the sump, so this would lead to a less than accurate result.

You might make do with the Infrared thermometer (better than merely guessing), but the next approach is the best way to do it.

Using an OBDII Scan Tool

The transmission has a temperature sensor built right into it. All you need is the right tool to talk to the transmission and ask it what the current temperature is. I’ve written extensively about how an OBDII scan tool is an essential part of your Aston toolbox (check out the collection of articles here), and hopefully you have one already. Not just any OBDII tool will work. We need one that can talk to the Automatic Transmission Control module. Most OBDII Scan tools can manage to talk to the engine control modules via the “OBDII” port, but a rare few are smart enough to talk to the other 11 control modules through the “Body” port.

One that can is the Foxwell NT510 (or later models NT520 and NT530). The magic of the Foxwell is that it can speak the actual native Aston Martin Codes. I’ve written about the Foxwell scanners here. Fortunately the Foxwell tool is also very affordably priced. There may certainly be other code readers that can do this, and as long as they can talk to the Transmission control module via the Body port, you are all set.

Reading the Transmission Fluid Temperature using a Foxwell Scan Tool

Let me show you how to use the tool to read the transmission fluid temperature. In the article below I will be using my Foxwell NT510, but the process will be similar in the other models.

The process will only take 2 minutes to get it going.

Connect your Foxwell code reader to the BODY port. In my car (LHD) this is what the ports look like in the drivers footwell. The Body port is the right hand one.

Insert your ignition key and turn it to the On position (all the idiot lights on dash lit). The car can be running if you need it to be, but at a minimum it needs to be in this key ON position.

With the main menu showing, use the arrow pads to highlight the “Aston Martin” codes and then press the Enter button.

On the next screen that appears, use the up/down arrows to highlight your generation of Aston Martin and then press Enter. For my 2005 DB9 I selected this one.

On the next screen it will be prompting you to be sure to have connected to the correct OBDII port. As I already noted above, for this procedure you need to be connected to the BODY port. Press the F1 button under the OK onscreen.

Next select your model of Aston Martin. My 2005 DB9 would be the second option on the list. Use the arrow pad, highlight it, and press Enter to proceed.

On the next screen we need to choose “Control Unit”. We do NOT want to Auto Scan (that’s a different use of the OBDII reader). Use the arrow pads, highlight “Control Units” and then press Enter to proceed.

On the next screen use the arrow buttons and scroll down to highlight the menu item “TCMZF”. This stands for Transmission Control Module for ZF Transmissions (the Automatic Transmission in the DB9 is a ZF Model 6HP26). Once highlighted, press Enter to continue. Note – if you didn’t have the key in the On position, or you weren’t connected to the Body OBDII port, this is the step where you will get an error failing to communicate with the module (since its Off or your on the wrong communication bus).

On the next screen arrow down to the “Live Data” option and press enter to continue.

Now you’ll see a list with dozens of live data items you can monitor, but we are only interested in one right now. Arrow down to highlight the 2nd option “Transmission Oil Temperature”. You’ll notice there are small check boxes to the left of the item, and they are all unchecked initially.

Now press the enter key to ‘check’ it. You should see a check box appear to the left of it.

Press the F3 soft key under the display to select “View Data”. This tells the Foxwell to start asking the TCM for the live data values for any variable that you checked off. In our case, the Transmission Oil Temperature.

It should think for a moment, and then begin displaying the live real-time transmission oil temperature. In my example here, the fluid temp was 113°F (45°C) since I had recently been driving the car.

The live data will stay on screen now. If the car wasn’t running yet you could start it when you are ready to check the fluid level and the real-time information will keep updating on the screen.

How Fast Does the Fluid Heat Up?

With the ability to read the temperature in real-time I thought it would be helpful to measure how long the fluid takes to warm up from 30°C to 40°C. This is the critical window where you need to be working under the car, with it idling, and pull out the fill plug and monitor the drip/drizzle flow and either drain or add fluid. Many people talk about ‘you need to work fast’. But is this 1 minute or 10 minutes?

To find out I left my car in the garage overnight and came out in the morning to start it up and measure the temperature rise (without driving). Merely idling from cold start, just like you’d do in the shop when changing/checking your fluid.

Unfortunately its a hot August day here in California, and by 9am it was already 87°F in the garage (31°C). So, I started already a few degrees into the 30°C to 40°C range (86°F to 104°F).

The transmission reported its starting temperature as 90°F (32°C).

The result – it took almost exactly 10 minutes for the temperature to rise (at idle) from 90°F (32°C) to 104°F (40°C). A little more than a minute per °C.

This is good news. It will likely be a bit cooler for you when you do the work, so you’ll have longer than 10 minutes to start the car, crawl under and get the work done.

I’d suggest that you enlist the help of your Sweetie to sit in the car and call out the fluid temperatures to you as they rise. The green-light to pull the plug out at 30°C and then the status reports on the climb as you dial in the level before it gets too hot.

You can use this knowledge in my series on how to Change the Automatic Transmission Fluid (check it out here).

Video

Here is a short video of how to use the Foxwell, and a neat time lapse I shot of the temperature timing test.

So you have finished reading the how to measure transmission temperature topic article, if you find this article useful, please share it. Thank you very much. See more: how to read transmission temperature, can obd2 read transmission temperature, transmission temperature gauge, obd2 app transmission temp, transmission fluid temperature chart, elm327 transmission temperature, transmission fluid temperature celsius, torque obd2 transmission temperature

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