20 Most Recent 2008 Chevrolet Express - Page 9 Questions & Answers

run the fault codes and look for a TCM problem. Have a pressure test done on the gear box to test for clutch and band adjustments.

Dealer only i think you will find

sounds like it might be a bad switch I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_54ae41aaaffbab00

Any chance the check engine light is on ?My first thoughts are fuel pump, ignition module or coil. It may be tough to find if you can't duplicate the problem in a repair shop. Someone may have to take tools and equipment on the drive and troubleshoot it when it happens.When it happens, will it sit and idle or does it shut down ?

Vehicle? Do all the windows work when the switch is replaced? How long does it last? Are one of the other switches stuck in position?Do all the other swicthes seem okay?On gm they all run through drivers side. Some systems are different. From the drivers side to say the passenger side front there are two wires that switch polarity between up and down. one wire is negative for up and positive for down, the other wire acts exact opposite. the other system the motor is grounded and there is a positive for up and a positive for down and no ground runs through. but I would say a bad door seal somewhere(bottom of driver window,at hinge tube conduit, or between door and vehicle up by windshield as water will follow seal around to inside of door)of if its a ford could be a gem module problem.

The filter should be in the fuel line between the gas tank and the engine. The line runs under the floor along the frame.

Could be at back under car left or right near tank.