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1988 Jeep Cherokee Ignition Spark

Tiny
DEVIN SHORT
  • MEMBER
  • 1988 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 185,000 MILES
Engine starts first try in morning, after some driving and vehicle has been turned off. The engine turns over just fine, but won't start. Ruled out coil, fuel pump, starter, cilinoid, and replaced distributor yesterday. Vehicle is still having problems. If allowed to sit over night it seems to start fine next morning.
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Saturday, July 31st, 2010 AT 6:35 PM

3 Replies

Tiny
EDWARD.S
  • MECHANIC
  • 166 POSTS
Hi, When It Does Not Start, Do You Have a Good Spark And Fuel Pressure. Also Was The crankshaft Sensor Ever Changed?

Hope This Helps You,
Good Luck
Edward S.
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Saturday, July 31st, 2010 AT 7:15 PM
Tiny
DEVIN SHORT
  • MEMBER
  • 2 POSTS
Well today I finally got it started by priming the carburetor, which makes me think that it is the fuel pump. And the crank shaft sensor hasn't been tested. What test would be needed?

Thanks so much for your help!
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Sunday, August 1st, 2010 AT 1:05 AM
Tiny
EDWARD.S
  • MECHANIC
  • 166 POSTS
Hi, I'd Check the fuel Pump Pressure first. If Fuel pressure Is good, Something Wrong With Carb. To Test The crankshaft Sensor, You need A DVOM Meter, Put it On AC VOLTS MilliVolts, Low Range, As Someone Is Cranking Engine You Should Get A Reading Around A 200mvolts If I remember. But you will need To get The Specs For it.

Hope This Helps You,
Good Luck
Edward S.
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Sunday, August 1st, 2010 AT 8:10 AM

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