cmunson1

I've been going through coolant at a rapid pace. 2 gallons since Dec. 30th 2014. Today is Jan. 13 2015.

I've used the UV additive to try and locate traces of the leak but had no luck. I've also pressurized the system with no result.

Radiator and cap have both been replaced. Cylinder head and gasket were replaced in March 2014. There has been no overheating issues.

I'm running out of ideas and I'm hoping there are others out there with a similar issue that have found a fix.

If this has already been covered please direct me to that thread.

Thanks.

DFlintstone

See that your oil isn't milky. Look under the cap also, the 0331 head is prone to crack right there. Google "0331 head", So there is maybe a start. Also be aware that there is a weep hole on the bottom of your water pump the coolant comes out through if the seal is bad.

salad

Has the oil level risen? Presumably not by 2 gallons!

If you REALLY can't find ANY obvious leaks I'd try a compression leakdown test. Both of the cylinders and the cooling system.

djb383

Did u have the head and gasket replaced by a shop last March?.....if so, take it it back to 'em.

cmunson1

I took it to the same shop that did the head and gasket replacement last March. They pressurized the system and found no leaks along with letting it sit idle, oil was changed and looked fine, they also did a block test which passed.

The carpet is dry on the passenger side.

djb383

Between March and December, how often did u check the coolant level AND did u check coolant level in the rad when the motor is COLD?

Larry's XJ

Did the shop pressurize both coolant system and cylinders?