1993 Jeep Cherokee Jerking and sputtering

Tiny
HANKS782
  • MEMBER
  • 1993 JEEP CHEROKEE
  • 4 CYL
  • 2WD
  • MANUAL
  • 145,000 MILES
Our Jeep is jerking and sputtering. First we changed the Fuel Filter. Still does it. Then we changed the spark plugs, it stopped for 3 days then it did it again. Three of the spark plugs were corroded and one was black and had a strong fuel smell like it was not burning the fuel. We did not change the wires this time. We are going to check the new plugs to see how they look and change the wires.
The Jeep does a sputtering jerking thing and it accelerates and releases. It does it mainly when we exceed 55 and when we go up a bring. Where we live there are several bridges. We need to keep this Jeep running until we finish fixing our Cavalier.
What else could be the problem? Would it be a censor or other wires?
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Saturday, July 12th, 2008 AT 3:59 PM

5 Replies

Tiny
DOCFIXIT
  • EXPERT
New pluge fixed it then 3 fuel fouled. You have leaking injectors flooding those cylinders and fouling plugs. You may try havinf them cleaned but with milage that high may not help.
Good luck
Wires may help but new plugs O.K. They foul problem back
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Saturday, July 12th, 2008 AT 4:08 PM
Tiny
HANKS782
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So should we change the injectors?
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Saturday, July 12th, 2008 AT 4:12 PM
Tiny
DOCFIXIT
  • EXPERT
Cleaning is a good thing to try. Injectors are a little pricey and you should do them if cleaning fails. So it's a gamble try cleaning works or not. Replace injectors
Rock paper scissors thing
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Saturday, July 12th, 2008 AT 4:19 PM
Tiny
HANKS782
  • MEMBER
Ok. Will try that. How do I go about cleaning them?
I have never messed with the injectors before. Is there a product I need to buy to clean them. What is the best?

By the way. Thank you ever so much for the help. I really appreciate it.
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Saturday, July 12th, 2008 AT 4:34 PM
Tiny
DOCFIXIT
  • EXPERT
Best way is cleaning by a repair shop that usees a pressurized cleaner. You can try a product called Proguard made by Chevron with active ingredinent Techtron
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Saturday, July 12th, 2008 AT 4:56 PM

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