Help!, no spark! Don't know what to do.
10-07-2010, 04:03 PM
#1
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Year: 1994
Model: Cherokee
Engine: Straight 6
Help!, no spark! Don't know what to do.
Hey, I have a 94 with the 4.0 HO paired with an automajic trans. About a week ago I was driving, and it just stopped... No spark from the coil. already replaced the coil, crankshaft sensor, and pickup coil. I bypassed the NSS b/c it was already a Pita and wanted to Eliminate the issue while diagnosing this. The only things I can think of from here are the relay, which I have 3 that I've been swapping out, none are confirmed good or bad, but I think is unlikely that all are bad. Other option I can think of is the ECM but again, unlikely and expensive.
Any help on this would be greatly apreciated
Thankyou in advance,
Ken
Any help on this would be greatly apreciated
Thankyou in advance,
Ken
10-07-2010, 05:37 PM
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Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
Check to see if you have voltage at the two wire plug at the coil with the key in the run position.
10-07-2010, 06:19 PM
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Year: 1994
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10-07-2010, 07:28 PM
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10-07-2010, 07:44 PM
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Year: 1994
Model: Cherokee
Engine: 5.2
is the gear in the distributor still attached? Never really seen it happen here, but on my 88 turbo coupe it would shear distributor gears all the time.
10-07-2010, 09:15 PM
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Year: 1991
Model: Cherokee
Engine: 4.o
Check your wiring, this is from a 96 but shouldgive you an idea.
You should have 12v in the dg/or wire at the coil,key on&cranking.
Hope this helps.
You should have 12v in the dg/or wire at the coil,key on&cranking.
Hope this helps.
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10-30-2010, 07:08 AM
#8
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Year: 1994
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I went through the wires in the engine bay, i found a few that go from the front of the engine, out of the bundle by the fuel rail, they went down under the intake/exhaust manifolds and bolted to the block and go towards the back, seemed like they exploded. So i repaired those, and i reset my ECU and it still has no spark. I'm beginning to think the ECU might have gotten fried when those wires blew up or something. Is there any tests i can do to check the ECU?
opc orn:
10-30-2010, 05:42 PM
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Year: 1994
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