1997 Chevy Tahoe WONT CRANK OVER

TPOHLMAN

MEMBER
1997 CHEVROLET TAHOE

1997 Chevy Tahoe Four Wheel Drive Automatic

I HAVE A CHEVY TAHOE THAT WONT CRANK OVER AND START UNTIL I USE STARTING FLUID AND THEN WONT RESTART HOT OR COLD UNTIL I DO THE SAME THING. ONCE START IT DOES STAY RUNNING UNTIL I SHUT IT OFF

Thursday, February 18th, 2010 AT 10:36 AM

3 Replies

2CARPRO JACK

MECHANIC
11,533 POSTS

Sounds like a bad fuel pump. I haev seem them get tto weak to supply the presure neede to start the engine, but can maintain enough to keep it running. Use a fuel pressure gauge to verify pressure when it wont start

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Friday, February 19th, 2010 AT 8:08 AM

TPOHLMAN

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1 POST

I HAD A TEST DONE AT A LOCAL AUTO STORE AND THE FOLLWING CODES CAME UP P0171/P0174/P0131/P0151/P0102/P0113/P0122

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Friday, February 19th, 2010 AT 11:31 AM

2CARPRO JACK

MECHANIC
11,533 POSTS

The first two are " lean bank 1" and "lean bank 2"
the next two are low O2 sensor voltage bank 1 &2 which is probably due to lean condition.
P0102 is a MAF issue-
P0113- is IAT sensor voltage
P0122 is TPS circuit voltage.

Start by checking fuel pressure, change/check fuel filter. You can get the related codes from it being too lean. Check for vacuum leaks as well between the MAF (Airbox) and engine.

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Friday, February 19th, 2010 AT 11:49 AM