Rick's Free Auto Repair Advice

Posts Tagged: Transmission fluid

Transmission Fluid — What is transmission fluid?

What is transmission fluid? Transmission fluid is a lubricant that prevents wear on transmission parts. But it serves a second purpose, and that it to apply pressure to servos and clutch pack pistons to force clutch discs and bands to apply. To help with clutch and band application, car makers specify different friction modifying additives for their fluids. What makes transmission fluid different from motor oil? Transmission fluid has many of the same additives as motor oil like: anti-wear additives, rust and corrosion inhibitors, detergents, dispersants and surfactants. In addition, … Read More

Transmission Slipping

How to fix a slipping transmission Every day I get questions from readers about transmission slipping. They always want to know if a transmission fluid change will fix the problem. I’ve got news for you. If you’ve neglected your transmission to the point where the fluid is a dark brown, a fluid change will NOT fix your transmission. This isn’t even a case of “what have I got to lose by trying it.” It’s simply a total waste of money with almost NO chance of making the transmission better. In … Read More

Transmission Leak Transmission slips in gear

My transmission leaks and slips GM has issued a TSB #08-07-30-009A regarding a Transmission Leak Transmission slips in gear. The TSB applies to ALL 2001-08 GM vehicles with front wheel drive and the 4T80-E transmission. The TSB advises dealers NOT to replace the transmission for this defect. The fix is to replace the 3rd clutch housing with a new part #8682114. The new part is made from an updated material to extend the life of the axle seal. © 2012 Rick Muscoplat

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