1999 Jeep Grand Cherokee Jeep won't start!

Tiny
RPAPON
  • MEMBER
  • 1999 JEEP GRAND CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 135,000 MILES
Hey guys, pulled into the parking lot of grocery store, and when we came out, the car won't start. It will crank, but won't turn over. Tried spraying starter fluid, but there doesn't seem to be a flame. Mechanic says it is the computer, but seems awfully strange for it to have just happened "over night". Wondering if there is a fix that won't cost a grand to get this thing running. Thanks!
Wednesday, October 6th, 2010 AT 2:28 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi Rpapon, welcome to 2carpros and thank you for the donation.

They all say that about the computer there is more money in it-when the fix relates to an ignition problem, no spark-when you are using the starter fluid.

Do below to determine if it is a fuel or spark problem.

Get a helper disconnect a spark plug wire or two 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, cap and rotor, distributor pick-up coil, ignition control module, cam and crank sensors and computer.
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Sunday, January 5th, 2020 AT 7:47 PM

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