2003 Chevy Tahoe V8 Two Wheel Drive Automatic 90000 miles
2003 Tahoe 5.3 Flex fuel with 90000 miles. Car would not start 2 months ago, was told it was the fuel pump, replaced it with an Airtex and it ran for a couple weeks, then would not start again. No fuel pressure at intake. Replaced fuel pump with a GM pump, car started and ran fine for a couple weeks, was out driving around, turned it off and it would not start. Wiggled fuel pump relay with the key on, got fuel pressure and it started. Replaced fuel pump relay, checked connector for any signs of corrosion, used dielctric grease on new relay. Ran fine for a few days then the same no start condition. I wiggled the relay, swithced it out with another, and nothing happened.
Was told on another answer forum to replace ignition switch, I did, ran fine for a few days and now wont start.
One time when it did not start I held the key on and moved the gear selector rapidly from P to 1 and fuel pump kicked on.
Here is what happens when the no start condition is happening. I turn the key on and the fuel gauge stays on E, when I try and crank the starter it will turn over just fine, but only one time, if I want to turn the motor over again I must take the key out, wait, put it back in to get the motor to turn over again.
If the fuel gauge comes up when I turn the key on it will start righjt up, when it runs it is perfect, never skip a beat, no check engine lights or any such thing.
The car will not start now, I banged wiggled rattled everthing I ccould think of with the key on and the fuel pump will not kick on. I read the service bulliten about the fuel pump module connector, but I have the Flex Fuel model and it excludes that model, although mine does have the square connector.
This is driving me out of my mind. Please advise if you are able to help
have the same problem?
Thursday, February 18th, 2010 AT 10:30 AM