2001 Other Jeep Models Won't start

Tiny
HPASTRANA
  • MEMBER
  • 2001 JEEP
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 80,000 MILES
My 2001 Jeep Grand Cherokee Laredo wont start. Already changed the starter, alternator and ignition switch. The battery is fine it just does not want to crank.
Wednesday, May 5th, 2010 AT 6:14 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Pick your symptom below and go from there.

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.

No crank at all/nothing/nada:

Could be the starter, starter relay/park and neutral switch and ignition switch assuming the battery and connections are good.
Was this
answer
helpful?
Yes
No
Thursday, May 6th, 2010 AT 12:33 AM

Please login or register to post a reply.

Sponsored links