Question about 1994 Jeep Grand Cherokee
White smoke generally indicates a blown head gasket or cracked cylinder head, permitting coolant to enter the combustion chamber. You may see a small amount of antifreeze on spark plugs, or, you may see a loss of compression in one, sometimes two adjacent cylinders. Have you had any unexplained coolant loss?
If smoke is present, does it do this all the time or only when first starting? (don't forget, water vapor is a by-product of combustion) Watch other vehicles...is yours smoking more than theirs?
Other than this, intermittent rough running can be caused by nearly anything in either the fuel or ignition system. You will need to check codes and do testing to determine which system(s) need attention. Your spark plugs can also be a good reference when testing. After plugs have been in service for a while, they should all have pretty much the same colouring on the insulator surrounding the electrode...any variation is a clue to which cylinders are malfunctioning.
Posted on Jan 31, 2009
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Oct 22, 2015 | Cars & Trucks
Feb 11, 2014 | Jeep Grand Cherokee Cars & Trucks
Mar 12, 2011 | 2004 Jeep Grand Cherokee
Nov 30, 2010 | 2004 Jeep Grand Cherokee
Nov 13, 2009 | 1996 Jeep Grand Cherokee
Feb 07, 2009 | 1994 Jeep Grand Cherokee
Jan 31, 2009 | 1994 Jeep Grand Cherokee
Oct 24, 2008 | 2001 Jeep Grand Cherokee
369 people viewed this question
Usually answered in minutes!