Check engine light
03-08-2009, 02:53 PM
#1
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Year: 2000
Model: Cherokee
Engine: 4.0l
Check engine light
My light went on last night and when i started up my 2000 jeep cherokee sport w/98,xxx miles it idle really low and then it drove fine and every start up after that it was idling fine i went to autozone and they said it showed a code for a misfire in cylinder 3. What should i check and does anyone know the exact code .
03-08-2009, 03:24 PM
#3
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Year: 2000
Model: Cherokee
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its starts up fine like nothing is wrong the only time i had a problem was last nite at an impond lot when i went to look at my brothers thrashed car and when i went to turn it on it idle really low like it was missing and today its fine but i dont know if it will come back or not
03-08-2009, 03:37 PM
#4
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Year: 2000
Model: Cherokee
Engine: 4.0
have a mechanic or friend with a good scan tool do a check and have him check all the sensors when scanning. could it have been bad gas
03-08-2009, 03:53 PM
#5
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Year: 01
Model: Cherokee
Engine: 4.0L I6
sometimes when you run these XJ's hard and then turn them off and turn it back on quickly they will get heat soaked or vapor locked, and misfire. but you may have something different, but when you had it scanned, didnt it give you the code?
03-08-2009, 06:20 PM
#7
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Year: 2000
Model: Cherokee
Engine: 4.0
i had the same htign happen to me today, was on teh high way and CEL coem on. After geting it scaned foudn out: misfire on 3 and 4. i am just gonan see if it does it agian but it could be your boot on the COP, could be cracked that will casue a misfire
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03-08-2009, 10:51 PM
#8
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03-08-2009, 11:24 PM
#11
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Year: 2000
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Engine: 4.0
did you get your CEL cleared and it came back ? if it comes back after re set you cna try this. try swapping the spark plug with an other cylinder and see if the problem follows the plug... if not it could be the boot on the cop, the springy thing in there or the COP
03-08-2009, 11:28 PM
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Year: 1985 shell
Model: Cherokee
Engine: 1996 6 cylinder Briggs & Stratton
Have seen missfire codes on diff. cyl. due to faulty tps. cost apx. 45.00 u.s. worked twice for me
03-16-2009, 05:17 PM
#13
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Year: 2000
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So i had the code cleared by one of my buddies up at valvoline two days ago and it hasnt come on since should i be fine or should i still check my 3rd cyclinder
03-16-2009, 05:23 PM
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Year: 2001
Model: Cherokee
Engine: 4.0L
hey guys, they have a bullitin out for this concern, you need to insulate number 3 injector with a heat resistant wrap. like a racing plug wire boot. wrap the entire injector body and it will fix your problem.