Try the dye and flashlight. Quick easy and at worst your out $30 bucks for both. It will eliminate the possibility of a leak. I wish I would have done it sooner. Took me a year to find a problem that took less than 5 minutes to fix.Okay so that was quick, the coolant level in the reservoir has gone down significantly, only this time faster than the last. The mechanic ruled out a blown head gasket because there are no symptoms even close to a blown head gasket. We have not ruled out a cracked head though just yet, and I honestly hope it isn’t a cracked head but how else could I tell? He told me it would misfire but it does not, no codes nothing. This is driving me nuts
I was just looking at your old reply, thank you! I got the dye but I can’t find a flash light, do they all work?Try the dye and flashlight. Quick easy and at worst your out $30 bucks for both. It will eliminate the possibility of a leak. I wish I would have done it sooner. Took me a year to find a problem that took less than 5 minutes to fix.
Search uv flashlight.I was just looking at your old reply, thank you! I got the dye but I can’t find a flash light, do they all work?
Yep I went the pressure tester route first, none of the adapters fit properly for me.Either the dye and flashlight trick or u can probably rent a coolant pressure tester from a auto part store and see if it holds pressure
I will try these options thank you!There are several relatively cheap and easy ways to tell if your head is cracked without tearing the engine apart.
1. Try the UV dye in the coolant.
2. Buy the kit to detect combustion gasses in your coolant.
3. Send an engine oil sample out to a lab to get analyzed.
4. Perform a cylinder leak down test (unfortunately I don't think a regular coolant pressure test has high enough pressure to detect a hairline crack, but a cylinder leak down test is over 100 psi so that should work).
Try these things before you take the Jeep apart. Best of luck to you.
I’m checking it, not gone up at all. The oil really doesn’t look like it is mixing at all. And there is really only one symptom here, and that is the coolant disappearing.You're checking your oil level? Has it gone up at all? Your Jeep is chugging coolant, so if it's a cracked head, some of that in theory should be in the oil. The fact that your oil analysis came up clean still suggests this might not be a cracked head, even though all the other symptoms point in that direction.