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01 cherokee sport stalls ONLY when cold

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02-12-2012, 10:27 AM

#16

moodster90

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Join Date: Aug 2011

Location: Marshfield, Me

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Year: 2000

Model: Cherokee

Engine: 6-cyl, 4.0 liter

Do y'all think an auto shop can diagnosis the actual problem? Also my jeep sometimes idles really low, anyone have any thoughts on that?

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02-12-2012, 10:53 AM

#17

Michael-XJ87

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Year: 1987

Model: Cherokee

Engine: 4.0 (of course) ;)

Possibly an o2 sensor causing it to run lean or rich when it's cold? Does it throw any codes?

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02-12-2012, 12:20 PM

#18

moodster90

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Year: 2000

Model: Cherokee

Engine: 6-cyl, 4.0 liter

Quote:

Originally Posted by Michael-XJ87

Possibly an o2 sensor causing it to run lean or rich when it's cold? Does it throw any codes?

Ummm there's no check engine light. An it only does it every once in a while, I will defiantly check into it being a bad o2 sensor.

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04-21-2018, 01:43 PM

#19

rzldzl

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Location: cariboo, bc

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Model: Cherokee

mine 180,000 miles

stalled when cold, if you kept foot on gas til warm then it would be fine.

replaced tps....no change

cleaned iac....no change

new upstream o2 sensor, FIXED.

downstream o2 was done year or two ago when i did new cat converter

thought i had read somewhere that the computer doesnt read the o2 sensor when cold so thought it couldnt be the culprit....but replacing it solved it.