Last post on Nov 26, 2013 at 1:42 PM
You are in the Chevrolet S-10 & GMC S15 Sonoma
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Chevrolet S-10, GMC S-15, GMC Sonoma, Electrical, Truck
#403 of 444 2004 Chevy S-10 Electrical meltdown
Apr 15, 2011 (10:10 am)
I own a 2004 chevrolet S-10 truck. Since early winter of this year I started having minor electrical issues. Interior lights not shutting off, alarm going off in the middle of the night, radio and speaker problems the cruise control stopped working. Then one day as my girlfriend was pulling out of her fathers driveway the drivers side air bag suddenly deployed in her face. Thank God it didn't happen a minute later. As an accident no doubt would have occurred. Possibly a fatal one. GM inspected the vehicle and informed me that the wire harness that runs directly under the drivers feet had been damaged resulting in the electrical problems and airbag deployment. This they (GM) claims was a result of enviromental factors (driver getting in the vehicle with snow on their feet.) Then they said there was nothing they could do about it. And I should take it up with my insurance company. The repair cost for this would be approx $2500. And ther is no after market wire harness and the damaged wire would just be spliced.
A month after my incident a person with a 2004 tahoe had there vehicle burst into flames outside a store approximately 30 miles from where I live. GM also claimed enviromental factors in this incident. I guess we will just have to wait until one or more persons are killed because of these enviromental electrical incidents before GM admits that their wire harness location is the real probelm.
So if you are in the market for a lightduty truck think twice about the Chevrolet and GM lines of vehicles.
#404 of 444 Re: Larry71 [larry71]
May 02, 2011 (11:44 am)
Did you ever figure this out? Mine is doing the same thing. Please help!
#405 of 444 Re: 2004 Chevy S-10 Electrical meltdown [ttsnow]
Jun 20, 2011 (7:38 pm)
I have a 2004 Chevy S-10 with some of the same problems, horn sounding in the middle of the night etc. The problem first happen when the vehicle was new and the GM dealership said that they had fixed it. Now 7 years later it has reappeared.. I also have other problems. Please post any additional information on this problem. Thanks
#406 of 444 Re: 95 Blazer fuse issue [john222]
Aug 28, 2011 (7:14 am)
Just wandering if this problem got fixed. My 95 S10 pickup just started doing the same. It was intermitten for about 3 days now it is constant. I changed the alternator(which was still under warranty) but is still doing the same thing. Every time I turn the switch on the #4 fuse blows and the system quits charging, dash instruments quit, motor starts running rough and the transmission starts acting crazy.
#407 of 444 Odometer & PRNDL LED Indicator lighs inop
Aug 31, 2011 (7:06 am)
2003 GMC Sonoma - Both odometer and auto shift indicator lights (LED) inop. All other electrical components appear to be working. Lights went out for about a week and then came back on for several days, then they went out again. I purchased a Haynes manual but schematics are vague or non-existent. I am almost sure there is a connection issue "somewhere" but not sure where to start looking without schematic.
Any recommendations on where to start looking or where to get complete set of wiring schematics?
#408 of 444 Re: 2004 Chevy S-10 Electrical meltdown [willieperkins]
Sep 02, 2011 (12:14 pm)
Hello there. I am a new member to the site and I own a 99' GMC Sonoma. I have extensive working knowledge of GM's absolutely substandard wiring, parts and customer service so I will help you as much as I can. The advice I am giving should help many of you who have posted questions so here we go. My 01' Astro and my 99' Sonoma are both showing signs of extensive electrical issues and because of this I have done extensive research and troubleshooting as to prevent further damage and catostrophic failure such as airbags deploying and fires. YOU NEED TO KNOW THAT ALL WIRING IN LATE MODEL VEHICLES IS SUBSTANDARD AND VERY DANGEROUS ALL DONE TO SAVE COMPANIES MONEY...IT IS NOT JUST GM. We have our governing agencies to thank for the lax requirements. The new standard for automotive wiring is to place 2-4 copper strands in each wire instead of the "old fashioned" bundle and these will fail. The only way to remedy this is to spend the extra money for a HIGH QUALITY aftermarket harness and devote 20-30 hours of labor changing it all out (should you decide to do this, I recommend boxing up the original wires and fed-exing it to your local transportation authorities with a pleasant thank you card for their hard work). However there are common faults in GM's that could help you save time and money.
1.) Instrument clusters on 94' and later vehicles are CRAP! You cannot repair nor service them with "resistor kits or any of that nonsense so dont waste your time. If you decide to replace it choose a nice aftermarket one that you like (will usually be cheaper than OE part and you will not be condoning the manufacturers original incompetance) but also remember you are required to have the new onw "mapped" as to set the odometer to the mileage of your current one.
2.) IGNITION SWITCH FAILURE and/or bad ground. Start your engine then wiggle your key and switch assembly...you will be surprised how many issued this will cause if it fails...radio crackling or cutting out, lights acting up, guages acting up, engine running rough and/or dying, and so on and so forth.
3.) Fuse box (engine and under dash) as described above these horrible wires break continuity but APPEAR fine. You must use and ohm meter to check for breaks in the wire from start to finish (dont forget to contort the wire and watch meter for variations)
4.) Bad chassis to engine ground straps. CHECK THEM ALL ! ! ! ! Again, substandard materials that corrode and fail because they SUCK
****BE SURE TO BE CAREFULE OF ALL YELLOW CONNECTORS ! These are part of the SRS system and can cause airbags to deploy if tampered with. If you absolutely must mess with these DISCONNECT THE BATTERY ! It usually will cause injury if deployed and can cause DEATH.****
Bottom line is that I am a GM guy but will be the first to tell you that the ENTIRE automotive industry is using substandard practices while building our vehicles but they are not entirely to blame. It should be illegal for these common but critical issues to be ignored and passed on to us to repair and recall campaigns should be issued. Maybe if enough of us contact our local and federal agencies enough to be a thorn in their side we will see something happen. I am ready, so lets do it. Feel free to email me with any specific questions. BE SAFE and good luck. GOD Bless.
#409 of 444 2002 s10 electrical and trans issues
Oct 06, 2011 (5:57 pm)
I have a 2002 v6 auto s10.
The issue started where the gauges other than the oil pressure and volt would drop off and the transmission (auto) would then be stuck in third gear even after the gauges would shoot back on. The problem got worse over a year (gauges dropping off more often and transmission stuck in third). Six codes pulled up that ECM/trans sensors. I just had a new ECM installed. Now the gauges show up until I actually start the engine, then they drop off immeditately with a jump on for a second ever so often and trans is stuck in third. I have been able to manually shift to 2nd starting off from a stop and then manually shifting to third in order to keep from killing the transmision. Unable to manually go into first or forth and no gauges makes for a interesting drive. Any ideas. I don't want to just start replacing transmission sensors in hopes for solving the issue.
Side note: before replacing the ECM "sometimes" the gauges stayed on and the transmission worked perfectly. The day I dropped it off to have ECM put in a 10 minute trip it ran perfectly no issues start from house to shop (of course) but knew it was there so had them do the ECM anyway hoping to resolve issue.
It took the shop 4 tries to get ECM to pass security set up to allow engine to run.
Does this sound like a poor ground, wire short, bad ignition column cylinder, or trans sensor or other? I have seen others with this issue on the net but have not seen a direct answer for 2002 s10 v6 automatic.
Engine has never skipped a beat during all this nonsense.
A VERY BIG THANKS in advance.
#410 of 444 Re: 2002 s10 electrical and trans issues [rdv6s10]
Oct 06, 2011 (6:09 pm)
Here is another blogger that I found with the same issues.
03-15-2009, 09:02 PM
I have a 2003 s-10 truck, and I have been having many problems with this truck. Right now i get SERVICE CODES P0758, P0740, P0753, P0785, and i have replaced the TCC solenoid and the wiring harness, i have also replaced both a and b solenoids. and still had the codes showing. I was told to try the ignition switch harnes, and that also did not fix my problems. I have no gauges,(only alt, and oil pressure), and it feels like i am stuck in 2nd gear, and there seems to be no power to go at all. Could it be my computer needs to be flashed or maybe a relay i don't know about? Please Help. Thanx
#411 of 444 Re: 2002 s10 electrical and trans issues [rdv6s10]
Oct 07, 2011 (7:22 am)
Not sure what he meant by ignition switch harness. The ignition switch will cause this problem, the electrical one, not key.
#412 of 444 Re: 2002 s10 electrical and trans issues [gonogo]
Oct 07, 2011 (1:41 pm)
A Big Thanks. I will give it a shot.