What is a bad transmission temp?
#1 Cause of Failure The optimal temperature range for transmission fluid is 175 to 220 degrees. Above that, for every 20 degrees bad things happen, starting with formation of varnish at 240 degrees, followed by seals hardening, plates slipping, seals and clutches burn out, carbon is formed, and, ultimately, failure.
How do I reset my 4t65e transmission?
all you do is drive it, the trans will re learn as you drive. every time you take the battery off long enough for the pcm to clear and reset, its all relearning. and the neg cable will be off for longer then 30 minutes while they swap the tranny out. so its all good.
Is the 4T65E transmission a good transmission?
The 4T65E is for the most part a fairly reliable transmission. It is the successor to the 4T60E. Variations of this transmission have been common since the 1980’s. By the 2000’s most of the kinks were worked out. But, like everything else, it’ll break and wear out with mileage and time.
What causes reverse failure on a 4T65E?
The maddening thing is that the 4T65E will work fine again when it gets cold. Reverse hardly ever fails on these transmissions. When it does, it’s almost always something that you’re going to have to open the transmission up to investigate. Here are the most common issues that may cause reverse failure in the 4T65E include:
What causes low clutch pressure in a 4T65E?
Most of them have to do with the transmission being just wore out. Here are the most common ones. MAF sensor causing the transmission lower command line pressure to be to low. This creates sluggish shifts do to lack of pressure. Valve body wear. Clutch wear. Bad Pressure Control Solenoid. Worn or bad seals and rings.
Is the 4t65ehd a ratcheting sprag transmission?
* Upgrade to ratcheting sprag? The stock 4t65eHD is a strong transmission in stock form, but has its limitations and flaws.