this is on my 1994 chevy s10 truck the truck runs and on occasion it decides to stop running, its not throwing any trouble codes at all but the vehicles computer will not talk to my scanner and when in self diagnostic mode it only sends acknowledgment code,and that is all when it dies it usualy after being driven.ive replaced pugs,cap,rotorcap and ignition modual.fuel pressure is supposed to be good as stated this is intermitent,because there is no warning when it does it and it stays down for at a minimum of a half an hour to a hole day
2006-12-12 10:06:01 · 5 answers · asked by billy w 1 in Cars & Transportation ➔ Car Makes ➔ Chevrolet
The computer sounds bad happened the exact same thing to my friends Beretta
2006-12-12 10:14:36 · answer #1 · answered by undercovernudist 6 · 0⤊ 1⤋
I have a 94 s-10 and it did the same thing. I replaced the ignition control module and haven't had a problem in over 3 years now. It is an OBD-1 system, and you won't get any codes. Use a paper clip and bend it to where it will plug into the place where you hook up the scan tool. Jump across the two right top terminals with the ignition switch off. Now, turn on the switch, and count the flashes. I'll bet you don't get anything but normal codes that are nothing more than enter and exit codes. Be sure you remove this jumper before you try to start the engine. You reset the computer by leaving the negative cable off for about 30 seconds or more. If you will replace the module that's in the distributor, and use some heat sink lube on the bottom of it, you will be back on the road in no time. I see this all the time, and have fixed I don't know at the number of these by replacing this module. They will work fine, heat up and stop working. When they get cool enough, they will work again for a little while then wham-o it does it again. I even carry a spare one in the glove box just in case.
I'm glad to help you out. Good Luck!!!
2006-12-13 12:53:47 · answer #2 · answered by Anonymous · 0⤊ 0⤋
does it have an anti-theft system, my brother's blazer does the exact same thing and it is his anti-theft system gone crazy other than that it is probably your computer, bad news you will probably need to take it to gm for them to check it, my opinion sell it my brother has got his fixed 4 times and it still does it each time cost about a grand
2006-12-13 00:24:53 · answer #3 · answered by cbearhalla 2 · 0⤊ 1⤋
Try someone elses scanner to be certain pcm is bad.,but it sounds like its a electronic circuit in pcm going open.
2006-12-12 22:47:48 · answer #4 · answered by deltech 4 · 0⤊ 1⤋
You've got a bad coil!
2006-12-14 11:52:24 · answer #5 · answered by gittit 3 · 0⤊ 0⤋