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1997 Chevy Tahoe WONT CRANK OVER

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

3 Replies

Tiny
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
Tiny
TPOHLMAN
  • MEMBER
  • 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
Tiny
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

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