2001 Chevy Blazer wont start

Tiny
JACKIEO66
  • MEMBER
  • 2001 CHEVROLET BLAZER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
It wouldnt start about 2 weeks ago so we changed the fule filter, it still wouldnt start and now we changed the fuel pump and it still wont start. It has new plugs also. I cant hear the fuel pump running either and its a brand new pump.
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Sunday, February 7th, 2010 AT 3:39 PM

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Tiny
RASMATAZ
  • MEMBER
Pick your symptom:
Did you have a check engine light come on or has flashed prior to this problem and when was your last tune-up?

Cranks but no start condition:

Fuel and Spark:
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.

Compression:
If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems
with compression and valves opening and closing at the wrong time/broken or jumped timing
belt/chain.

No crank at all/nothing/nada:

Could be a blown fusible link the starter, starter relay, clutch switch/park and neutral switch and ignition switch assuming the battery and connections are good.

Note: If it doesn't apply disregard it
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Monday, February 8th, 2010 AT 6:27 AM
Tiny
RASMATAZ
  • MEMBER
Probable causes here could be one of the following, the starter, starter relay/park and neutral switch and ignition switch assuming the battery and connections are good.
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Sunday, July 4th, 2010 AT 4:14 AM

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