TJ Fest 2021 Hats
Order your Jeep Wrangler TJ Fest 2021 hats today! Click here for ordering instructions.

Is this a head gasket issue?


Morks

Member
Supporting Member
Joined
Sep 3, 2020
Messages
26
Location
Windsor
04 tj sport manual. Since I bought my jeep I've done thermostat, heater core... I have no heat in my jeep and lose a bit of coolant over weeks. Out of my tailpipe, I can smell a sweet smell like burning coolant. I've checked all the obvious things just not sure whether or not I should start to diagnose a bad head gasket and think about tearing it all apart. Thanks for any and all help
 

CharlesHS

TJ Addict
Supporting Member
Joined
Mar 10, 2020
Messages
2,149
Location
Jacksonville, FL, Quezon Philippines
Look for bubbles in the coolant that smell like exhaust.
Do you see continuous steam coming from the exhaust pipe?
Apressure check can be done of the cooling system.
Pull the spark plugs to see if there are signs of coolant burning.
 
OP
M

Morks

Member
Supporting Member
Joined
Sep 3, 2020
Messages
26
Location
Windsor
Look for bubbles in the coolant that smell like exhaust.
Do you see continuous steam coming from the exhaust pipe?
Apressure check can be done of the cooling system.
Pull the spark plugs to see if there are signs of coolant burning.
I'll check for bubbles, when I start it up there seems to be more steam than usual, however, it's my first winter with it so it could be cold weather. I just did the spark plugs a couple of weeks ago and everything seemed okay. Most likely will be getting a pressure test kit sometime soon to see.
 
OP
M

Morks

Member
Supporting Member
Joined
Sep 3, 2020
Messages
26
Location
Windsor
Look for bubbles in the coolant that smell like exhaust.
Do you see continuous steam coming from the exhaust pipe?
Apressure check can be done of the cooling system.
Pull the spark plugs to see if there are signs of coolant burning.
checked for exhaust bubbles in the rad and nothing, still 0 smoke from the tailpipe so I put my face right at the tail pipe while it was running for a second, lol, and definitely smelt what had to be burning coolant.
 

AMS417

"The Ayatollah of rock and rolla"
Supporting Member
Joined
Apr 13, 2020
Messages
973
Location
Springfield MO
You can buy a test kit from pretty much any auto parts store to test for head gasket leak. Some will loan you the tester for free, and only charge for the test fluid when you return it. It test the coolant for exhaust gases. Checking the plugs is a good method as well.

Like this one:
https://www.amazon.com/dp/B06VVBSFTF/?tag=wranglerorg-20
 
  • Like
Reactions: Vtx531

Vtx531

TJ Enthusiast
Joined
Nov 17, 2020
Messages
259
Location
Kalamazoo, MI
You can buy a test kit from pretty much any auto parts store to test for head gasket leak. Some will loan you the tester for free, and only charge for the test fluid when you return it. It test the coolant for exhaust gases. Checking the plugs is a good method as well.

Like this one:
https://www.amazon.com/dp/B06VVBSFTF/?tag=wranglerorg-20
This!!! I rented one from auto zone and purchased the test fluid for $8. Works amazing and will give you your answer