Question about 2002 Chevrolet Tahoe

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On our 02 tahoe we have changed the fuel pump,fuel filter, wires and plugs and 02 sensor,but when after driving for bout 15 mins it still wants to bog down and sometimes even kill.

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  • Anonymous Apr 24, 2009

    Exact same problem here. It is worse in summer time when AC is running. It will actually stall at times, but then start back up again and we can continue on. But the problem is random for us. Sometimes it can go weeks between issues.

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  • Chevrolet Master
  • 2,007 Answers

Providing your air filter is clean, my guess would be a vacuum leak.With the engine running, pour some soapy water along the intake gaskets and see if it bubbles a lot. Check all vacuum lines by wiggling them when the motor is running, and listen for a hiss.
Check your timing and timing chain.
Egr system.
Faulty ignition coils.
Good luck.

Posted on May 16, 2009

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Posted on Jan 02, 2017

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