Tahoe starting problem

BADGOLF444

MEMBER
CHEVROLET TAHOE

Hello all I have been stressing over this problem with my truck Tahoe 2000 62k miles 5.7. It decides when it wants to start. Over the last year and half or so, my truck after sitting a day or so on occasion fails to start. It turns over starts then immediately within a second or so cuts off, I try again and same thing happens time after time but will not stay on. I will let sit for a day or so turn the key and it starts no problem. Funny thing I told my wife, for a while it would only do it on Sundays when we were ready for church ("it's got the devil in it I say"). I have taken it to the dealer before as it is there now but they claim they cannot find anything wrong with it, they tell me it would have to be doing it for them to fix. When it is not starting I have tried the resetting of pass lock, disconnecting battery no response, it has never thank god left me stranded anywhere after starting not sure if is due to it being warm. Pleeeeeze help!

8 Replies

SERVICE WRITER

MECHANIC
9,123 POSTS

I need clarification. I don't believe in the "Devil".

When it doesn't start:
It has set for longer than normal.

You turn the key, it cranks over a few times, starts and stalls.
You then try to start it again by turning the key, the engine turns over, but it doesn't start.

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Wednesday, April 4th, 2007 AT 7:48 PM

BADGOLF444

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3 POSTS

After driving it fifty miles truck may sit overnihgt and not start the next morning.
When it is not starting after every attempt it cranks fine starts and stalls within a second or so. At times on mornings it would not start and later in the afternoon it would start up fine. On other occasions I would try to start two three days in row without it starting once. It got so bad I parked it and use it very seldom starting it only to attempt to keep my battery healthy. I had a person interested in buying it one day but I could not get it started for him to test drive. I have it at the dealer now they can not find anything wrong with it. I asked them to keep it for a few days hoping they experiance the no start. I have thought of vediotaping the occurance the next time so they can see it on tape.

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Thursday, April 5th, 2007 AT 5:44 PM

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MECHANIC
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Intermittants can be a real pain. What we have done in the past is when a customer has this, they let one of us use it a a personal vehicle in hopes of the problem happening while we have. It is tough to run a vehicle during the day, and hope it happens.

If they can't solve it, post when you get it back and maybe we can try a few things when it happens and you have it.

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Thursday, April 5th, 2007 AT 8:43 PM

SERVICE WRITER

MECHANIC
9,123 POSTS

Only because I did some research on this, I am posting what I found. I have it "narrowed" down to several likely culprits. I do say narrowed down in a sarcastic sense.

-vats (vehecle anti-theft system) problem that may include: Key switch and cylinder lock passlock.

-faulty connector at fuel pump and or ground.

-faulty fuel pump replace with # 25314329

-fuel metering valve (part of fuel injection spyder)

-Terminals ant fuel pump relay being sread too far apart in relay box. Replace relay as well.

These are all "fixes" the fit the description of your symptoms.

Hope you finger it out.

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Friday, April 6th, 2007 AT 7:08 PM

BADGOLF444

MEMBER
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Thanks for the info will work on them with hopes of eliminating them one at a time. The passlock security I believe is the cotliest of them all, I thought about bypassing this with an alarm system with remote start bring price down 200-300$. I will start with cheapest and work my way up. How about the fuel regulator or filter could these be at fault?

Thanks again for your time and help.