2005 GMC Savana 3500 Questions

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While I'm driving so often the entire van shakes, like clutch is not engaging correctly.or the flywheel is unbalance. Any advice?
Gages come on when water temp goes to 260
I have a 2005 GMC savana 3500 work van. sometime while i am driving all my gauge and speedometer and radion stop working randomly and will stop for a minute maybe 2 and then come back on. i cant seem to get an answer ...
If I give just a little gas to it, it runs fine. no check engine light, but occasional ABS light comes on. When I get to five miles per hour or less, seems as if ABS is engaging
Good day, i had asked some questions about this problem before and since then i have change some parts. I have it worked on by a gmc master tech. with over 16 years experience. He diagnose it and told me that it n...
I lend my uncle my truck and he fill it up with gas, after that it started driving really bad. It don't accelerate like how its supposed to, rmp going up but vehicle moving very slow. I change the spark plugs, fuel pu...
Tried MAF sensor, upper intake gaskets (possible vaccum leak), IAC (had to change whole throttle body can't buy IAC alone). Unable to find any vaccum leaks.
I left my blinkers flashing while I worked, forgot about it, and now the battery is dead. I have a charger, but I am afraid to use it without instructions ... help!
when vehicle is started it may register the oil pressure or not. It stay off or come on for a while then go off. There is no rise of temperature of the engine.