2003 Chevy Tahoe

BRAUN002

MEMBER
2003 CHEVROLET TAHOE

Engine Performance problem
2003 Chevy Tahoe V8 Four Wheel Drive Automatic

son hit a gaurd rail had the truck towed home but it wony't start thanks

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Hi:
cute picture! Anyway, have you checked for spark and fuel to the engine?

Joe

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Sunday, March 1st, 2009 AT 7:31 PM

BRAUN002

MEMBER
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Im sorry its an avalanch 4wd 1500. Have spark no fuel the relay kiks but can't here the pump runninng, it want over a gaurd rail and was at an extream angle. The tow operator said it sputter and died when they drove it off the flat bed. The anti-theft system was locked but we reset it. Does the anti-theft or the feul system have a fuel cutoff in case of an acceden?If so how do I find it and or reset it anny help is really appresheated, can;t get no anserws any place else they all want to jack my mom up for a towjob and 90$ reader fee. The bumbs wont even tell me if it has this system.I'm glad to see a couple of old fashion macanics that will help!Thanks for your time. Jc braun

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Tuesday, March 3rd, 2009 AT 11:13 AM

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Hi:
If you hear the relay kick in, it is sending power to the fuel pump. Now, either you have a damaged wire that supplies power to the pump, or for some reason, the pump went bad. I want you to try something before we move on. Purchase a can of starting fluid. Follow the directions on the can, and spray some in the throttle body. If the car starts for a few seconds (until it burns the starting fluid) the problem isn't related to the security system.

When the security system locks the car down, normally you loose both spark and fuel. However, if you hear the relay, that tells me that the pump should kick on. The test will assure me that the ignition system is working and not kicked.

If that is the case, let me know. If so, you will need to check to see if there are any damaged wires from the accident under the vehicle. If not, you will need to remove the fuel tank and check if there is power to the fuel pump. If there is, the pump will most likely need replaced.

Let me know what you find.

Joe

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Tuesday, March 3rd, 2009 AT 1:34 PM