02 WJ Water coming out of exhasut
Thread Starter
Junior Member
Joined: Jan 2010
Posts: 39
Likes: 0
From: Tampa, FL
Year: 2002
Model: Grand Cherokee
Engine: 4.0 I6
Like the title says, I just bought an 02 WJ with 146,xxx miles, and I came outside to find a puddle of water directly under my tailpipe, so I stuck my finger in the hole and it was moist(
hehe). Anyway, I have never owned a car with a/c before, and a friend told me that some cars when you run the a/c do that. Me being me, I fear the worst, blown headgasket, but have also heard that if the cat is clogged it'll do it too. Has anyone had any experience with this? Also, pics to come! She is pretty clean
hehe). Anyway, I have never owned a car with a/c before, and a friend told me that some cars when you run the a/c do that. Me being me, I fear the worst, blown headgasket, but have also heard that if the cat is clogged it'll do it too. Has anyone had any experience with this? Also, pics to come! She is pretty clean
Senior Member
Joined: Sep 2010
Posts: 905
Likes: 1
From: Llewellyn, PA
Year: 1998
Model: Cherokee
Engine: 4.0L I6
If it was from the a/c it would only drip after you ran the a/c for a while and it would come out of the middle of the body or the back of the engine compartment. So it's not the a/c
Junior Member
Joined: Apr 2009
Posts: 44
Likes: 0
From: Texas City (50 miles from Houston)
Model: Cherokee
Most likely a head gasket. Are you losing coolant?? If you remove the radiator cap do you see any bubbles when its running? Does the oil look like a milkshake?
If you answer yes to one or more questions then you have a blown head gasket.
If you answer yes to one or more questions then you have a blown head gasket.
If it's water and not slimy like coolant then it's due to oxygenated gasoline.
http://epa.gov/otaq/oxygenate.htm
Completely normal.
http://epa.gov/otaq/oxygenate.htm
Completely normal.
CF Veteran
Joined: Feb 2010
Posts: 12,367
Likes: 23
From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
Water is a byproduct of combustion and from a chemical reaction in the cat.convertor. As long as you don't have fluffy clouds of steam and a sweet smell from the exhaust, you're fine. It is totally normal to have water from the exhaust, every vehicle with a cat.convertor has water coming out the exhaust.
Last edited by Bustedback; Sep 11, 2010 at 06:44 PM.
Thread Starter
Junior Member
Joined: Jan 2010
Posts: 39
Likes: 0
From: Tampa, FL
Year: 2002
Model: Grand Cherokee
Engine: 4.0 I6
Thanks for all the replies guys! I checked the coolant level, and it's still full, the oil is still nice and brown, and the exhaust smells normal. I never thought that it could be normal, but after following the link it makes more sense to me. I guess I'll just have to keep an eye on things, and hope for the best. Thanks again guys!
Trending Topics
I have to agree with bustedback. Anybody let their cars or trucks warm up for a few minutes will see this. It may not be much water but there will be some. Vehicles that drive short distances often needs their exhaust replaced sooner than vehicles that drive long distances. This is because moisture just sits in the exhaust and rots it away, unless its stainless.
CF Veteran
Joined: Sep 2009
Posts: 1,092
Likes: 0
From: Chesapeake, Virginia
Year: 2002
Model: Grand Cherokee
Engine: 4.7
yep totally normal, usually its during warm up, my guess is cause its dumping more fuel into it to heat up, also the water is a good way to find exhaust leaks, found that out, had a small hole in my muffler and saw it dripping water, got it welded up
CF Veteran
Joined: Sep 2009
Posts: 1,092
Likes: 0
From: Chesapeake, Virginia
Year: 2002
Model: Grand Cherokee
Engine: 4.7
i shoiuld have been more specific ha, it was a hole that wasnt supposed to be there, i know about the drain hole, this hole was bigger than that, i could also hear it to, i was wondering why my exhaust seemed louder
Thread
Thread Starter
Forum
Replies
Last Post
Tcq192
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
11
Dec 30, 2025 02:21 PM
shelby5041
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
39
Nov 7, 2015 01:22 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)




