Last post on Nov 19, 2013 at 12:41 PM
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Chevrolet Tahoe, Electrical, SUV
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#418 of 456 Re: 6 Mos. Pregnant w/Elec. Problems for '09 Tahoe [jthom4]
May 23, 2013 (10:54 am)
I feel for you. I still have my 2003 suburban. I spent 3800 bucks fixing it up. New water pump, new brakes, fuel filter etc... Now, the weird thing is that I believe now my fuel pump was going out sporadically and what I thought was an electrical problem was really my fuel pump going out. My stereo hums with the transmission now and I have to bang the console to get it to shut up. I'm sorry but go and get a Honda Pilot. When I tried trading in my suburban, they were only going to give me 4000 bucks so I kept it. Honda rocks, Chevy sucks unless you have the time and money to keep taking it in to get fixed. Cut your losses and get out of that truck as fast as you can without losing your shirt. I have 4 boys and it served it's purpose but at a dear cost.
#419 of 456 2007 Chevy Tahoe turning off while driving
May 27, 2013 (9:01 am)
Hi..last Thursday my truck just turned off while driving it at a high rate of speed..could barely turn it to get off highway since it was in manual mode..Friday we replaced the battery and was told it could be an alternator problem still even though the diagnostics test said it was the battery..didn't drive it at all Saturday and Sunday it had no electricity at all..black screen..tow truck came to jump me and it worked and he said the test he did says it shouldn't be the alternator either..haven't had any issues until now!!! Scared to drive it!!
#420 of 456 Re: 2007 Chevy Tahoe turning off while driving [postalqt37]
May 27, 2013 (10:56 am)
It may be the fuel pump. Same thing happened to me. One we replaced by the fuel pump, we never had the problem again.
#421 of 456 Fuel pump
May 27, 2013 (1:33 pm)
If your fuel pump goes bad, you will still have power, it just won't crank.
#422 of 456 Re: Fuel pump [rokfor]
May 28, 2013 (3:19 pm)
Actually if the fuel pump goes, it will crank... Crank and crank and crank, but won't start... I've been through 2 fuel pump replacements... But a bad fuel pump wont get you the symptoms of the screen blacking out... That would only be something in the electrical system.. I'd be checking the ground connections. When they're flaky, can cause even the most unfathomable of symptoms..
#423 of 456 2011 tahoe ltz electrical anomalies
May 31, 2013 (5:18 am)
My wife and I own a 2011 Tahoe ltz 2wd with the 5.3 with 73,000 miles with no previous owners. For the past few months my wife has stated there is a problem with the vehicle flickering the door locks, displaying msg (blind side alert) then a check engine light comes on for about 1x second, then the problem is corrected, the check engine light goes off and the vehicle is normal again. She drives 56 miles one way to work and is not uncommon for this to happen 2 or 3 times during that drive.
I obviously concerned for her safety, I drove the vehicle and tried to get the vehicle to do the same for me and it did not. The next day, she took the suv to work and in the middle of an intersection the truck shut down on her, all lights on the dash lit up, the locks flickered, blind side alert msg as well as having a check engine light. While in that intersection she panicked, turned the truck off and started it again to get out of the intersection. She called me and I asked if the check engine light was still on, with her reply, "no." just in case the computer logged it, I had her push the onstar button and had them do a diagnostic on the vehicle not 2 minutes after the occurrence, and for them to tell me nothing was wrong with the tahoe.
The next day, we noticed our dash was cracked and and was going to have that replaced on some dealer warranty funded programmed and I advised them of the problem. The service person looked at me as if I was stupid, mind you I know my way around under a hood pretty well.
After having the new dash installed and picking up my tahoe, the service manager stated, "we found a misfire, we cleared it out and "reprogrammed" the computer". So to me, means they didn't find crap, and he told me that to appease me.
On my way home the tahoe, finally messed up with me in the vehicle. This time at 60mph down the road the truck started to feel rough and shake, the locks flipped on and off, blind side zone alert msg, then the truck hick up, the transmission went bang (like a neutral drop feeling) the check engine light came on, then a half of a second later the truck was running fine. I watched the voltage gauge fluctuate from 10 volts to 18 volts back to 10 then back to 18. Fearing I was going to blow or cook the battery I stopped the vehicle and turned it off. I lifted the hood and saw miner corrosion on the positive lead.
I started the truck back up and found the truck to running normal but I stopped and the nearest O'riely's Auto parts store and picked up a new battery. I got home and replaced the battery and cleaned tightened all leads.
Yesterday the Tahoe still is doing the same thing, its been in the shop 2 times now with nothing fixed. Its the same almost every time. No check engine light.
truck begins to idle rough or shake depending if you are stopped or traveling.
locks engage then disengage
blind side alert flashes across the instrument cluster
if driving (a pop under the carriage) like a neutral drop
check engine light for 1-2 seconds
the volt gauge fluctuates from 10 to 18 volts
then the truck runs fine.
I have had a Denali, Yukon, and now this Problem Tahoe... not happy!!
#424 of 456 Re: 2011 tahoe ltz electrical anomalies [qdurrett]
May 31, 2013 (6:32 am)
There are a bunch of posts with this same problem in this forum. I've read most of them but probably not all. A lot of the folks have done a great deal of maintenance from changing out the battery like you to replacing the whole engine - that's a lot of dollars.
The post that interested me was someone who had read somewhere else about a ground being corroded on the back of the engine. They replaced it and the problem cleared.
I would recommend to you to do a search on this forum and get a feel for the different solutions and non-solutions that people have tried. It's definitely more than just a one-off problem you're having.
Just one guys opinion.
#425 of 456 Re: 2011 tahoe ltz electrical anomalies [spriteman]
May 31, 2013 (6:43 am)
I saw that about the yellow and black wire near the passenger back side of the motor. I have tried to locate that wire but am not able to. just curious if someone might be able to email me a snap shot of exactly where. I have been under and on top looking for it. Not sure if the year difference in the vehicle makes a difference.
#426 of 456 Re: 2011 tahoe ltz electrical anomalies [qdurrett]
Jun 12, 2013 (6:42 am)
qdurrett - I'm having exactly the issues you are having (2009 Tahoe Z71) and wanted to note that this is the first time I've read someone having the "if driving (a pop under the carriage) like a neutral drop" issue like I am. When I let my foot off the accelerator at around 35mph, as the vehicle starts to slow, it pops/rattles the drivetrain a few times. I also have an issue when coming to a stop where the rpm's ramp up and try to push the vehicle forward while I'm on the brake. I previously had the no start issue but cut the negative battery cable off and replaced it with an aftermarket and it's never had that problem again. I do still have the previously mentioned problems though along with...
--Engine noise through speakers (all factory radio/Nav)
--Radio power/display will cut on and off while driving and stability trac dash light and check engine light will flash on and off and the same time
--Sometimes the locks will cycle when it goes haywire but that's maybe 20% of the time.
I am working on replacing all my positive and negative cables with new grounds and connections to see if that repairs it. I'm just amazed at how many people are having these issues and there doesn't seem to be any TSB's or any urgency on GM's part to get a handle on it, especially when this should be considered a safety issue from all the stories I've read.
#427 of 456 Re: Chevy Tahoe No Power (sometimes) [jnrcat]
Jun 16, 2013 (9:24 am)
I had the same problem with my 2000 tahoe
i changed the battery and multiple fuses come to
find out it was the ground wire i had it replaced and
wham all set. Try that it only cost me $40 and the truck
sat for a month. Now i have a new problem it won't start
but it is trying to turn over not like before where nothing
worked except the interior lights. I changed the fuses but
no good i do here the fued pump kick in but it takes a few
seconds not sure if that's normal or not. Someone else said
they had simular problems and it was the onstar module that
kept the truck from starting. So i'm going to look into that.
Let me know how it goes.