engine miss at idle
#1
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Location: conshohocken, pa
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Year: 1995
Model: Cherokee
Engine: 4.0
engine miss at idle
So, I have a 95 sport with 146,000 miles on it. I have put a cold air intake on it with a throttle body spacer, new dynomax full exhaust, magnaflow cat, new tps, iac, fuel filter, wires, plugs, cap, and rotor just last year. Last month it started with a small miss at idle. So I replaced the cap and rotor since it looked alittle worn. That seemed to work only for about a week and it started again and seems to be getting worse. Any ideas?? I was thinking pehaps the o2 sensor. Not sure though
#2
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Join Date: Aug 2011
Location: Blue Springs, MO
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Year: 1993
Model: Grand Cherokee
Engine: 4.0L Laredo
So, I have a 95 sport with 146,000 miles on it. I have put a cold air intake on it with a throttle body spacer, new dynomax full exhaust, magnaflow cat, new tps, iac, fuel filter, wires, plugs, cap, and rotor just last year. Last month it started with a small miss at idle. So I replaced the cap and rotor since it looked alittle worn. That seemed to work only for about a week and it started again and seems to be getting worse. Any ideas?? I was thinking pehaps the o2 sensor. Not sure though
#3
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Spray some throttle body cleaner around the intake with the engine running. You may have a vacuum leak. You'll be able to tell when spraying as teh idle will change immediately.
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