1997 Chevy Blazer fuel pump

Tiny
KRISTIMATHENY
  • MEMBER
  • 1997 CHEVROLET BLAZER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 69,000 MILES
We have changed the fule filter and changed the relay switch in the glove box. The fuel pump comes on sometimes and starts up fine and other times the pump will not kick on at all or start.
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Thursday, November 27th, 2008 AT 5:52 PM

4 Replies

Tiny
RASMATAZ
  • MEMBER
You could be having problems with the computer fuel pump relay control, also test the oil pressure sending unit-


http://www.2carpros.com/forum/automotive_pictures/12900_oil_sending_unit_and_fuel_pump_circuit_86.gif

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Thursday, November 27th, 2008 AT 6:09 PM
Tiny
BLUELIGHTNIN6
  • EXPERT
Have you replaced the fuel pump itself? Probably starting to fail and needs replaced.
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Thursday, November 27th, 2008 AT 6:09 PM
Tiny
KRISTIMATHENY
  • MEMBER
No I have not replaced the fuel pump yet I was hoping that would be my last resort being that it is so expensive. And I thought being that it does start sometimes maybe it wasn't the fuel pump. If it is the fuel pump would it start every once in a while?
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Friday, November 28th, 2008 AT 9:45 AM
Tiny
BLUELIGHTNIN6
  • EXPERT
If you reviewed Rasmataz's answer and didn't find anything wrong, then you can try the following.

Test for adequate charge in your battery and check fuses/fuse panel wires for any sign of short circuits. Ensure that all wires are protected (insulated). If not, this would allow earthing, causing a short in the system.
Check with a circuit light to see if charge is being lost at any point from the ignition switch onward and also ensure the mechanism isn't worn or dirty at the key switch internally.

This is a few things you can try before replacing a pricey component that you are unsure needs replacing.

Hope this helps.
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Friday, November 28th, 2008 AT 10:38 AM

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