1988 Jeep Cherokee Dead Cylinder?

Tiny
SHANEG
  • MEMBER
  • 1988 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 25,000 MILES
I changed the plugs and wires a few weeks ago, then the cap and rotor this weekend.
I was going to work and hit the gas and it devolped a pretty nasty miss. I pulled wires off of 2 of the cylinders and no change. I then took the plugs out of the two and they are smoked black. To me it looks like a carbon black and not an oil black. I put new plugs and wires again and no change. Read a couple of things and talked to a couple of friends and they say either dead/clogged injectors, bad coil or a timing/cylinder issue. When I pull the wires off the other 4 the car dies. Looking for some help. Dont know where to start next. Any info would be great.

Thanx

Shane
Sunday, June 8th, 2008 AT 9:09 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

The first thing to do is have a compression test done. If the comps are ok, and you have a good spark at the plug, you will need to check the injector is getting a pulse signal and that the injector is working. Start here.

Mark (mhpautos)
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Monday, June 9th, 2008 AT 5:40 AM

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