SPARK KNOCK will not cease...even with tune up!
I am getting a bad spark knock with the recommended 87 octane even when I have had a BG air/induction cleaning and major tune-up...mostly happens upon acceleration or when engine has a load on it (like going up a hill). Computer has been reprogrammed and we don't know what else to do with it. I have the 2000 JGC Laredo 4x4 4.0 liter and the dealers are puzzled like I am...please help or any suggestions.
|Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)|
|Thread||Thread Starter||Jeep Forums||Replies||Last Post|
|2003 4.7 V8 Tune Up ie spark plugs & coils||marciad32||ZJ Grand Cherokee Forum||14||06-03-2009 07:20 AM|
|94zj 4.0 tune-up. spark plug suggestions?||robertg||ZJ Grand Cherokee Forum||4||12-01-2008 11:11 PM|
|what causes a caliper to cease up?||mad_skillz||ZJ Grand Cherokee Forum||11||09-03-2008 10:32 AM|
|Spark KNOCK and PING...even after major tune-up!||wwevans||WJ Grand Cherokee Forum||6||01-29-2003 08:38 PM|
|5.9 - Spark Knock||5.9Limited||ZJ Grand Cherokee Forum||5||01-14-2002 04:09 AM|