2003 Chevy Avalanche Won't start after stalling

Tiny
MARK SPENCER
  • MEMBER
  • 2003 CHEVROLET AVALANCHE
  • V8
  • 4WD
  • AUTOMATIC
  • 108,014 MILES
My Avalanche stalled at a red light, I tried to restart it but it will not do anything except sputter a little. I had the truck towed home and check the obvious problems. The seems to fuel at injectors. I traced the fuel line and found a check connection and there was fuel there. For the last several months it has been ideling at 500 RPM when stopped at a light and I have noticed the RPM wavering somewhat usually 100 - 200 RPM but it would always return to 500 RPM. I recently changed the fuel filter (last 6 months). When driving at highway speeds there is no loss of power.
Do you
have the same problem?
Yes
No
Tuesday, March 30th, 2010 AT 6:38 PM

4 Replies

Tiny
JACK42
  • MEMBER
How much fuel is present. You will need to check this with a mechanical gauge. Depending on theengine (8th digit of the vin #) the pressure should be 55-62 psi for all engines except "Z" and 48-52 for the "Z" engine code. You are at the mileage when GM pumps usually give up, so check this first
Was this
answer
helpful?
Yes
No
-1
Wednesday, March 31st, 2010 AT 8:05 AM
Tiny
MARK SPENCER
  • MEMBER
I'm not getting fuel to the injectors, and after checking my pump there is no pressure or fuel. I am fairly well mechnically inclined so would changing the fuel pump something I could do in my drive? I'm assuming the tank is held on by two straps, not sure what happens when I drop the tank. Any hints on what to expect and what to watch out for?
Was this
answer
helpful?
Yes
No
Wednesday, March 31st, 2010 AT 6:30 PM
Tiny
MARK SPENCER
  • MEMBER
I'm not getting fuel to the injectors, and after checking my pump there is no pressure or fuel. I am fairly well mechnically inclined so would changing the fuel pump something I could do in my drive? I'm assuming the tank is held on by two straps, not sure what happens when I drop the tank. Any hints on what to expect and what to watch out for?
Was this
answer
helpful?
Yes
No
Wednesday, March 31st, 2010 AT 6:31 PM
Tiny
JACK42
  • MEMBER
Fuel weighs 6 lbs per gallon, so if you dont siphon the tank out, be aware of the weight. It is something that you can do in the driveway, butif you can enlist someone to help balance thetank it will be very helpful. The lines attach at the top of thetank unit, you will need a release tool to get them off, they are available at any auto parts store.I strongly advise you use an A/C Delco pump.I have seen too many aftermarkets have issues and have to be removed and repalced with a high quality unit.
Was this
answer
helpful?
Yes
No
Wednesday, March 31st, 2010 AT 8:23 PM

Please login or register to post a reply.

Recommended Guides