2003 Chevrolet Avalanche Logo

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Lee Bayless Posted on Nov 14, 2017
Answered by a Fixya Expert

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My 2003 avalanche died suddenly and now will not start. The engine turns over fine, I replaced the fuel pump fuse, but it still won't start. I'm guessing the fuel pump itself went bad, but jus

1 Answer

Bill Boyd

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  • Chevrolet Master 53,816 Answers
  • Posted on Nov 14, 2017
Bill Boyd
Chevrolet Master
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Joined: Jan 04, 2013
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What about a broken timing belt
cam shaft /crank shaft position sensor or failed immobilizer

5 Related Answers

Anonymous

  • 6 Answers
  • Posted on Jun 02, 2009

SOURCE: NOT GETTING ANY GAS TO ENGINE

It's either the fuel pump or your engine control unit. Try hot wiring the pump and see if it works. If it does you need a new brain.

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Anonymous

  • 29 Answers
  • Posted on Nov 17, 2008

SOURCE: engine

possibly a plugged catalytic converter?

emissionwiz

Marvin

  • 85242 Answers
  • Posted on May 26, 2009

SOURCE: Fuel pump issue, 2004 chevy avalanche

1s the fuel pump should not be that noisy, and the problem u are describing is a defective/worn out fuel pump, it is taking time to built pressure, replace the fuel pump and don't forget to replace the in line fuel filter as well.

ROB

  • 858 Answers
  • Posted on Jul 20, 2009

SOURCE: starts then dies..

heat is a big factor in the distributor module!
they beak down [no current ]
resulting in no plugs firing & can be intermitant also

jmgldsmth

Jim Goldsmith

  • 2005 Answers
  • Posted on Jun 29, 2011

SOURCE: my truck starts like it

replace the batery cables (they corode in the middle and, look fine on the outside but, when you cut them in half they are filled with gray corosion dust; causing very high resistance.

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If the engine won't fire up, but your starter turns over, you may want to check your timing unless you have a check engine light on. If the CEL light is on, have the codes scanned.

If the engine won't turn over with the starter or it clicks, have your battery tested at autozone or advanced auto parts. Replace the battery if it is bad. Else, have your starter tested.

If the engine still won't turn over and the battery and starter are tested fine, you may have a blown fuse, bad ignition switch, or a failed relay.

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I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

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My car was running fine yesterday and this morning it didn't start. got a new battery, replaced the oil and checked the fuses. everything is fine but car still won't start. suggestions, please

Check for spark and fuel. When you turn the key on you should hear the fuel pump in the tank for a few seconds till the pressure builds up. When you crank the engine there should be spark at the plugs.
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