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Pickups Chevrolet S-10 & GMC S15 Sonoma Chevy S10 - GMC S15 and Sonoma Electrical Problems
212 messages, Last post on Aug 29, 2008 at 5:22 AM
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Replying to: jfogelberg (Jun 06, 2007 6:53 pm) |
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Replying to: jfogelberg (Jun 06, 2007 6:53 pm) Everybody I've talked to has of course told me that there's a short or loose ground somewhere. I've cleaned every connection and ground that I can get to. The only thing I haven't been able to really check is the starter because you have to remove the exhaust pipe to get to it on the 2.2L and those bolts are not coming off for me in my driveway. Have you had any luck figuring out your problem? Thanks.
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Replying to: mh60guru (Jul 07, 2007 1:04 pm) Can't remember the exact procedure but it was easy. I think both support braces and the cross bracket. |
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| Yesterday while backing out of driveway my AC/Fans quite working. In addition the radio/clock stopped. Clock/radio came back. Then fuel gauge/temp gauge went out. Back on this morning. yesterday the wipers/wash would not work. Still don't. Lights for what gear you are in are out. Come on briefly on start. Wipers/wash out. If radio is on and I swith on AC to see if it works radio goes out. What is going on? | |
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Replying to: jfogelberg (Jun 06, 2007 6:53 pm)
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Replying to: oldtimer7 (Aug 08, 2007 1:58 am) |
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Replying to: greasymonkey3 (Apr 23, 2007 5:15 pm)
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Replying to: dtimothy (Jan 17, 2007 8:27 pm) |
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Replying to: oldtimer7 (Aug 08, 2007 1:58 am) |
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Replying to: mh60guru (Aug 10, 2007 2:28 pm) I had a long talk with the regional electrical guru from GM who visits all the local dealers to solve whatever the regular techs have given up on. Here are some highlights of our discussion . . . . 1. There is NO single item that shows up in these complaints that prompts the techs to head for a common culprit. 2. My developing conclusion that it is a charging problem is correct. The voltage regulator is confused! 3. The entire primary system is too long, has too many connections, and deteriorates in various parts of cables and connection to contribute to an increasing resistance that taxes the limits of the alternator. 4. The fluctuations in the dash voltmeter are exactly what the computer is "seeing". 5. Measuring the voltage at the battery doesn't tell you enough. 6. The battery must be checked for specific gravity by cell, and load tested to verify if it is healthy enough to be eliminated, or is a suffering contributor to the overall problem. Remember, it becomes a victim of poor charging. 7. The fluctuations in the voltmeter are showing the actual response of the voltage regulator to the system demands. 8. The alternator is not strong enough for the applications. 9. The regulator (inside the alternator) is controlled by the PCM which is not always calling for the correct response from the alternator. Because the system combines so many loops, the power budget is often confused as to the correct voltage/amperage. 10. ANY deterioration in the system of circuits (large or small) contribute to misleading readings within the system monitored by the computer. 11. The battery cables, all grounds, and connections must be in primo condition. Since current is flowing in so many directions, any marginal conductivity is curtains. 12. Be careful to avoid questionable aftermarket components since the items may not be close enough to OE specs to really repair the problem. 13. Sometimes the dealer has the only quality Delphi part that you want to invest in. 14. This whole issue is a prime example of what we have to look forward to when ever increasingly complex vehicle systems get old. This is the classic example of the engineers not being there to see what they've created many years down the road. Remember, we do the real testing, and this one is failing. For us to eliminate all of these electrical headaches, we have to keep the systems and circuits as close to "new" as possible. When I receive the rest of my stuff from the dealer, install it, and test it, I'm going to make my results known. I do still intend to change the ignition switch which might require pulling the steering wheel (air bag!). Still referencing this one (?). I used to be a repeat Ford truck owner, right now I doubt the I'm going to dwell in the GM camp much longer. I'm tired of consoling my friends who drive Dodges . . . . . what do I turn to (Japanese?)? If you have any questions, please ask me.
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