Oil on plugs rough idle smoking
06-29-2017, 07:17 PM
#1
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Model: Cherokee
Oil on plugs rough idle smoking
Hey guys i have an 01 cherokee. It's idling rough and was smoking white. I changed the plugs and it appears to be more blueish smoke. Pulled plugs and have oil on the bottom of the plugs. Blown head gasket/cracked head? What do you guys think? Isn't making any noises. No coolant in the oil.
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06-29-2017, 09:26 PM
#2
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Year: 1997
Model: Cherokee
Engine: 4.0L
White smoke is usually coolant, but can also be condensation. Check the oil and coolant for any mixing of the two. It might not show, but its worth a look. Oil on the plugs sounds like leaking valve seals. If its blowing smoke on both acceleration and deceleration, id say rings. Check the compression and do a leakdown test. Whats the mileage?
