Question about 2004 Chevrolet Silverado 2500HD

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Transmission getting hot - 2004 Chevrolet Silverado 2500HD

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If it's truly getting hot, then you have an issue with the cooler. Most circulate fluid through a coil inside one of the radiator tanks to cool the fluid. Some utilize an external cooler, usually mounted in front of the radiator. If you pull heavy loads, such as trailering, then you really need to install an external cooler. High temp oxidizes the fluid. For every 10deg rise in temp above 170deg the life of the transmission is cut in half. An external cooler isn't too expensive and can save you tons of $$$ in the long run.

Posted on Jun 03, 2010

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Posted on Jan 02, 2017

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1 Answer

Transmission stalls after it gets hot


This usually happens when the transmission fluid gets hot.

Transmission fluid gets hot when there's not much of it.

Check your transmission fluid levels.

If it's low, you can fill it by pouring fluid down the testing hose. Just make sure to get a funnel.

Sep 06, 2013 | 1993 Ford Taurus

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When my transmission gets hot its stops pulling


sounds like a dirty transmission filter

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Transmission slips after engine warms up


It isn't when the engine gets hot, it is when the transmission fluid gets hot that the slipping starts, due to wear of the clutches and gears inside the transmission.
First, check the fluid level to make sure it is full. If it is low, bring fluid level to full and see if that helps.
About all the owner can do with slipping automatics is trying a transmission fluid and filter change to see if transmission revives and stops slipping. The bottom pan is removed, fluid (about 6-8 quarts) is drained, and a new filter is installed before the pan is replaced with a new gasket, sealed up, and fresh fluid added. Sometimes it helps. Sometimes the transmission is worn too bad to help, and you are left with looking for a replacement transmission.
Check the fluid level first. Good luck.

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Do you check the transmission oil level with the engine running with it in Park, or with the engine turned off (after getting the transmission up to normal operating temperature)?


The transmission will have a hot and a cold mark, it is best to run the transmission hot and check the oil level whilst idling in park.

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I have a Volvo P0700 code , P0740 code. when the transmission is cold it works ok, when it gets hot it shifts hard and will lock in a gear/


OK allot of people don't under stand transmission because they think a transmission is complicated.
When the fluid is cold it is thick and can't move as fast and can't build pressure as fast as hot transmission fluid. There are small 1/16 holes in the Valve Body that the fluid has to pass through and Valve that get ***** out from allot of use. When a valve ware and fluid can go through the space that it couldn't before when it was new and the differences of hot and cold fluid makes a big differences. The fluid can move passed the valve and into the accumulators that operate the shift mechanism. So that why it shifts good when it's cold and hard when it's hot. Might be a sticky valve or shift solenoid or just need rebuilt. In the past if i had trouble like this and had to rebuild the transmission before i did that i would put a can of thick STP motor oil Treatment in the transmission because it thickens up the transmission fluid and make my car shift like new. Its not going to hurt nothing it mixes well with the transmission oil.

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1 Answer

Transmission works fine when cold but when transmission gets hot car will not move in drive or reverse


SOUND LIKE TRANSMISSION GETTING HOT CHECK TRANSMISSION FLUID LEVEL.IF LEVEL OKAY FLUID + FILTER BEEN CHANGED MAKE SURE TRANSMISSION COOLING LINES TO RADIATOR NOT PLUGGED CAUSING TRANSMISSION OVER HEAT. OR LEAKING TRANSMISSION FLUID.

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2 Answers

My transmission slips about a hour of driving it or whan it gets hot. i can turn the van off and restart it and it seems to be ok . i can drive it again until it gets hot.


Do an old fashion transmission filter change and new fluid.

DO NOT use those transmission flush machine. It will damage trans.

Order the transmission filter kit and drop the pan.

Add the ATF to the right level.


A Caravan transmission is problematic. 80K-140K miles.

If you haul a lot of payload then the trans can be down at early as 75K!

Aug 11, 2010 | 2001 Chrysler Voyager

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My 1999 Z71 shifts hard on occasions. Seem to be after the transmission gets hot. Any ideas?


This only happens when the transmission is going bad wherein when it gets hot it does not shift easily.

Replace the transmission please.

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Transmission won't go into overdrive when engine is hot


Lexus's have a complicated system of electronics that control the function of the transmission.Under normal operating conditions the transmission is controlled by the ecu and by a secondary system called a drivetrain control module. usually when a fault occurs it sends a code to the ecu and the check engine light comes on.
If this light does not come on then typically the electronic modulator is at fault and needs to be replaced.
If the check engine light comes on when the vehicle is hot i need this code to guide u further for the repair.
If u want to attempt the repair , be wary. its messy and takes time to do to do it right.

Apr 25, 2009 | Lexus ES 300 Cars & Trucks

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