Hi all- A friend of mine has a '97 Expedition. He bought it a few months ago. Twice since he bought it, he notices that the overdrive light on the shift lever handle is blinking. Just driving down the highway. Then he pulls over to the side of the road. Shuts off the engine. Restarts it and...

Working on a 2001 F150. Drained the rear diff to replace axle seals. Has the 9.5 inch ring gear with "positraction". The tag on the diff says to use 75w-140 synthetic fluid. My question is... do I need to add friction modifyer?

I'm working on a 1999 Expedition with a 4.6 engine. There is about 1/4 inch layer of oil on top of the coolant in the surge tank. Can someone tell me where this most commonly comes from? Thank you!

Hello! My name is Brian. I'm from northern Minnesota. I enjoy technical forums and the vast wealth of information they provide. I'm looking forward to communicating with you!