Engine Runnign Rough- 98 TJ
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Re: Engine Runnign Rough- 98 TJ
Replace your spark plugs with Champion RC12ECC:
http://www.----------.com/sparkPlug.jpg
Then clean your TPS and step motor:
http://members.***.net/wilsond/tb/tb.html
God Bless America, Bill O|||||||O
mailto:--------------------
gkucera wrote:
>
> Engine has been running rough in my 98 TJ, 6-cyl. When coming to a stop
> and taking it out of gear (auto tranny) the idle speed would jump up
> sometimes to abouv 1000 RMP. I'd have to quick step on the gas to get
> it to come back down- almost as if it were stuck. But the engine seemed
> to be missing also. My old 86 XJ did this and turned out to be a bad
> vacuum line to the egr valve. Same symptoms here but can't seem to find
> the egr valve on the TJ. Put in new plugs, wires, cap/roter, and
> ignition coil. Engine still jerks at all speeds. Got sucked in to
> buying the split fire plugs. After attmpting to adjust the gap to .035
> I noticed on the packaging that the plugs were "factory set" and no gap
> adjustment is required. Could I have screwed them up? Any chance it
> could be something else- egr, pcv, O2 sensor?
http://www.----------.com/sparkPlug.jpg
Then clean your TPS and step motor:
http://members.***.net/wilsond/tb/tb.html
God Bless America, Bill O|||||||O
mailto:--------------------
gkucera wrote:
>
> Engine has been running rough in my 98 TJ, 6-cyl. When coming to a stop
> and taking it out of gear (auto tranny) the idle speed would jump up
> sometimes to abouv 1000 RMP. I'd have to quick step on the gas to get
> it to come back down- almost as if it were stuck. But the engine seemed
> to be missing also. My old 86 XJ did this and turned out to be a bad
> vacuum line to the egr valve. Same symptoms here but can't seem to find
> the egr valve on the TJ. Put in new plugs, wires, cap/roter, and
> ignition coil. Engine still jerks at all speeds. Got sucked in to
> buying the split fire plugs. After attmpting to adjust the gap to .035
> I noticed on the packaging that the plugs were "factory set" and no gap
> adjustment is required. Could I have screwed them up? Any chance it
> could be something else- egr, pcv, O2 sensor?
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M. Paradis
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Dec 14, 2003 03:10 PM
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