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Chevrolet Tahoe Electrical Problems

63 messages,  Last post on Nov 29, 2009 at 8:06 PM

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What is this discussion about? Chevrolet Tahoe, Electrical, SUV

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#10 of 63 Re: Another Tahoe Electrical Problem [caelab] by rockman59 Sep 03, 2006 (5:47 pm)
Replying to: caelab (Sep 03, 2006 3:33 pm) Was the sound I heard the last cry of the alternator? Could just the voltage regulator be bad? Any/all thoughts are welcomed. ____________________________________________________________ You need to take your Tahoe to a qualified auto electrical shop for a complete evaluation of your electrical system. Replies to this message: caelab (Sep 04, 2006 8:07 am)
#11 of 63 Re: Another Tahoe Electrical Problem [rockman59] by caelab Sep 04, 2006 (8:07 am)
Replying to: rockman59 (Sep 03, 2006 5:47 pm) Thanks, Rockman. Was hoping for a DIY test to try at home but am afraid you may be right.
#12 of 63 99 Tahoe, wont start- HELP! Ignition Module??? by 19tahoe99 Sep 18, 2006 (12:48 pm)
Hi everyone- I have a 1999 Tahoe with 134K. I went on a 500mi round trip and returned home. The next day I tried to start the car, motor turned over very well, strong battery and voltage, but it would not fire and has not since.   First- I had already replaced the fuel pump (and filter) with an AC Delco 3 months prior. The pump still sounded very strong, I checked the shraeder valve at the fuel rail and there appears to be plenty of fuel (50psi+).   Next step- I checked the spark figuring something wore out. Turns out I have enough spark to arc weld with.   Next- Poured gas in the throat (a fairly large amount) and the car sputtered to life for approx 2-3 seconds.   Diagnosis- We figured only when we absolutely flood the injectors with fuel will the car even attempt to fire, could this mean my injectors arent openning at the correct time? If so, we thought possibly replacing the ignition control module might fix this, does that control the firing of the injectors? I know there is a test with a voltage meter to check this, but I do not know the specific test.   Please help, any and all information would be greatly appreciated- I hate to just throw parts at a problem if someone else has a better idea! Replies to this message: arrie (Oct 22, 2006 6:24 am)
#13 of 63 Re: Tahoe Electrical Problem [ksmith5] by curious_gears Oct 21, 2006 (6:46 pm)
Replying to: ksmith5 (Aug 08, 2006 6:40 pm) it sounds as if you might be having the same problem as my mom's boyfriend's 99 tahoe. when the electrics die, what does the amp gauge do? and, does the clock reset itself? Replies to this message: joey2695 (Jun 24, 2007 6:17 pm)
#14 of 63 Re: 99 Tahoe, wont start- HELP! Ignition Module??? [19tahoe99] by arrie Oct 22, 2006 (6:24 am)
Replying to: 19tahoe99 (Sep 18, 2006 12:48 pm) It definitely sounds like your injectors stopper working and when it seems that all of them did it at the same time (engine doesn't even try to run)it points out to the injector control module (or what ever controls them).   In newer cars this all is done with the same PCM but I don't know how your car has it. Perhaps you have a separate fuel injector control module. That said, it also could be a simple fuse or relay problem as usually all separate 'modules' either have a fuse or a relay at power supply.   Arrie
#15 of 63 1999 Tahoe possible grounding problem by damntruck Dec 22, 2006 (8:54 am)
Help!!!!! Recently my 1999 Tahoe began to have an unusual electrical problem. When I turn left, the automatic door locks actuate. I have checked the voltage on the battery (12.4V ignition off and 14.5 engine running).I have checked the grounding from the negetive to the block and everytrhing seems to be in order. I also disconnected the battery to reset the ECM/OCM. I have checkec the fuses and the fuse box. Any thoughts on the possible problem. The battery does not drain and the car seems to run fine. Thanks Mike Replies to this message: damntruck (Dec 28, 2006 9:03 am)
#16 of 63 Re: 1999 Tahoe possible grounding problem [damntruck] by damntruck Dec 28, 2006 (9:03 am)
Replying to: damntruck (Dec 22, 2006 8:54 am) Problem fixed. Once I disconnected the battery, both positive and negetive the computers ECM/OCM seemed to "re-boot". There have not been any problems since.
#17 of 63 overheating fuel pump relay by victoryurtola Jun 07, 2007 (11:09 pm)
I have a 97 Chevy Tahoe and after I run it for awhile it just shuts off, while i'm on the road. I check the fuse box and the fuel pump relay is hot. I pull the relay off just to see whats happening where the terminal is and the socket area of the fuel pump relay is partially melted. I wait till the fuel pump relay cools off and I can start it up again...What do I do to fix the problem pls need help
#18 of 63 Started with CD player by mpeirce2 Jun 19, 2007 (1:25 pm)
The CD player had an error message...and kept ejecting a CD even when there wasn't one there..the motor kept going...even when the Tahoe was turned off. It eventually drained the battery. I removed a fuse from the electrical box under the hood that said radio and recharged the battery and the Tahoe will run. But the speedometer and other gauges are not working and must be run by the same fuse ??? Where do I go from here...did the CD player cause this?
#19 of 63 Re: Tahoe Electrical Problem [curious_gears] by joey2695 Jun 24, 2007 (6:17 pm)
Replying to: curious_gears (Oct 21, 2006 6:46 pm) We have a 99 tahoe and out of the blue the electrical shuts down while driving and the clock does rest. Do you know what that could be.

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