Not starting

Tiny
AVWOODRUFF
  • MEMBER
  • 2000 CHEVROLET ASTRO
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 214,000 MILES
I have a 2000 chevy impala that sometimes wont crank -- it will crank from cold, but after I drive it and park it for 30 min on and try to crank it to no avail. I have put a new starter, new battery and had the ignition switch recalibrated or cleaned by a locksmith. Any ideas
Sunday, January 30th, 2011 AT 9:12 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Next time it refuses to start don't wait for it to make up its mind-do below immediately to determine if its fuel or spark problem

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 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, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if okay-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, cap and rotor, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing.
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Wednesday, March 16th, 2011 AT 9:59 AM

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