2010 Jeep Wrangler Q&A
2010 Jeep Wrangler Question: Spark knock, How to get rid of it?
3.8 motor, manual trans.Did more in hot weather. BUT still happens when motor is running temp. I have 33,000 miles. It is definitely Spark knock or motor ping. I have read a lot about it however would like to hear from this site. Only pings when accelerating. Help me please? - C M
Needs to be hooked to a scanner to monitor data-fuel trim , CTS , O2s ,etc. Poss. running lean or faulty knock sensor. Could be lots of things, diagnose may be cheaper than guessing. - ziptie12
Pull your air breather hose off and you will see oil all in you air intake . If you take off your pcv valve and cap the air Intake side and then flush the carbon from your pistons with water and then it will not come back . But don't hook the pcv valve back up - 1981pontiac