20 Most Recent 1994 Chevrolet Sportvan G30 Questions & Answers

If the distributor hasn't been taken out, the timing can be set manually but you have to disconnect the distributor wire behind the glove box inside the cab. Tan wire with white tracer it is taped up to the a multi wire harness but is the only one with a single plug. Disconect the plug and use your timing light on the timing mark to set timing per specs. Rotate the distributor as needed to advance or retartd as required for the correct setting. tighten the dizzy clamp and plug the tan wire back together. The computer will now be fooled asd to what the base timing is and advance from there.
Contrary to popular belief, 96' and up do not have this wire. Timing has to be done with a programmable scanner.
Dan
Hope this helps.

I've got a 98 Z71. The person that had it before me put a different steering column in it and the cruise isn't on the same lever like normal its behind the signal light switch. And its only got cruise on it and its not hooked up. I was wondering if you guys have any ideas?

i'm the chevy guy. are you talkin distributor timing or timing chain timing?

Unfortunately, it won't shift right without the computer. The computer is what commands the shifting patterns. Even if you put the computer back in, it won't shift right because you have remove sensors from the engine. You'll have to replace the transmission with an older one, that isn't controlled by a computer.

Have the alternator and battery tested at your local parts store. May be a voltage issue.

i have a chevy c3500 with a 4L80E tranny. recently it started shifting funny. one day it wouldnt shift out of (i think 2nd) and my max speed was 35 without winding out tranny. drove it later that day and it wad fine. this happened about six other times and after turning truck off it corrected itself. now that isnt working and it wont shift. any suggestions anyone?

http://www.troublecodes.net/gm/ look at this site. pretty good list of code and how to retrieve code.

There is not an ICM on the 95 Ford Contour it is a part of the PCM. All this toward the dash left side.---------------------------------------------------------------------Trucks & Heavy Duty Scan Tools

the ignition module is bad