Have Jeep Questions? Ask a Jeep Repair Expert for Answers
Hello, my name is***** sounds like you may have some carbon deposits on valves which are common on this engine. You can buy seafoam which is an engine cleaner. Suck it into engine using a vacuum line while engine is running. Then let it sit over night to soak and in the morning run in low gear at high rpm to burn out any carbon deposits on valves. Let me know how it goes or if you have more questions. Thanks.