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Unread 10-04-2013, 10:14 PM   #16
Why J?
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I have some wetness on my passenger floorboard bit it's condensation from the ac as far as I can tell.

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Unread 10-05-2013, 07:54 AM   #17
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Put the pressure tester on it this morning and it still is not holding pressure. I called the shop and asked about it. They tell me that they pressure tested it as I had requested after the radiator was replaced.

I haven't driven it enough to verify if is still loosing coolant. I have a feeling it will. Maybe my pressure tester is bad? I doubt it.
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Unread 10-07-2013, 07:19 AM   #18
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At the shop again this morning for another pressure test. I didn't get to drive it much this weekend due to my CPS going out and the jeep not running.

My wife was right. I bought another project.
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Unread 10-07-2013, 11:31 AM   #19
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Check for coolant weeping from the drain hole on the water pump. I also had a rusty pinhole in the metal pipe that runs from the water pump to the heater inlet.
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Unread 10-07-2013, 06:17 PM   #20
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Quote:
Originally Posted by moggie99
Check for coolant weeping from the drain hole on the water pump. I also had a rusty pinhole in the metal pipe that runs from the water pump to the heater inlet.
I have a little bit of corrosion around the water pump that suggest that it will, in the near future , need a water pump. Currently though it does not leak.

The shop did a pressure test on the cooling system and while their pressure leaked off from 16lbs down to 13lbs they explained to me that their pressure guage is worn and that is normal for that guage. I am not convinced.

I have another shop that deals in only Jeeps replacing my exhaust manifold. And they will also be checking for a coolant leak. They also do not think that I have a bad head or head gasket. I'll find out tomorrow. I highly trust this shop, in fact this is the only mechanic that I have ever let touch one of my jeeps before I had another shop do the radiator. Which I did simply because my guy couldn't work that into his schedule.
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Unread 10-07-2013, 07:19 PM   #21
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Quote:
Originally Posted by Why J? View Post
The shop did a pressure test on the cooling system and while their pressure leaked off from 16lbs down to 13lbs they explained to me that their pressure guage is worn and that is normal for that guage. I am not convinced.
What a terrible thing for a shop to tell you. If they truly believe their gauge is not working, then it should be replaced. You don't use a gauge you can't trust!!!! I wouldn't be going back there....ever.
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Unread 10-07-2013, 07:26 PM   #22
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Quote:
Originally Posted by tjwalker
What a terrible thing for a shop to tell you. If they truly believe their gauge is not working, then it should be replaced. You don't use a gauge you can't trust!!!! I wouldn't be going back there....ever.
To be honest they are a good shop. They are honest and do what they say they will do for a fair price.

I basically told them the head gasket was bad and I was willing to replace it at significant cost
to me. They insist the head is good and doesn't need to be replaced. How many mechanics do you know that will walk away from that job? Not many.

They do however rely on their mechanics to supply their own tools like many shops and in this case this is the tool that was available when I went by this morning.

With all that said my Jeep mechanic would be replacing the head gasket. This shop I trust with certain work. This is not something I would have then do. My Jeep mechanic has been working on Jeeps for 40 years and knows then inside and out. He is a bit slow but he is good. I'll know more tomorrow.
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Unread 10-07-2013, 08:14 PM   #23
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Quote:
Originally Posted by Why J? View Post
I have some wetness on my passenger floorboard bit it's condensation from the ac as far as I can tell.
I wouldn't think you'd have condensation on the floorboard unless the heater core/evaporator box had a crack in it.
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Unread 10-08-2013, 12:39 PM   #24
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My Jeep mechanic is replacing the exhaust manifold today. Said 5 of the bolts broke so I'm glad I had him do it.

He pressure tested it over night before starting any work on it and found that it lost 1 lb all night. I couldn't find the leak because it was most likely evaporating on the hot block and not leaking when cool.

Anyhow. My Cherokee has a block heater. It spent its first 8 years of life in Wisconsin. Not a bit of rust though. He found the freeze plug for the block heater weeping when he pulled the exhaust manifold. It was loose, he tightened it up and says that should take care of my missing coolant.
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Unread 10-12-2013, 04:57 PM   #25
moggie99
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I'd forgotten the core plug/freeze - my ZJ was losing from one under the manifold, now fixed with new plugs.
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Unread 10-13-2013, 12:43 AM   #26
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What a terrible thing for a shop to tell you. If they truly believe their gauge is not working, then it should be replaced. You don't use a gauge you can't trust!!!! I wouldn't be going back there....ever.
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Ok just so you know mechanics have to purchase there own tools..... The shop does NOT purchase tools for the mechanics 99 percent of the time(I spend 600 dollars a MONTH in tools) a coolant pressure tester is 100-200 dollars depending on where you get it. Mine is old, It leaks down a little bit but it still works just fine at diagnosing coolant leaks.

The lack of coolant leaking when the vehicle is cold is due the expansion and contraction of the vehicle during hot and cold cycles. Water pumps do this the most often(as well as t stat housings). Sometimes they leak when they are cold and sometimes they leak when they are hot. My 96 Cherokee I just picked up, leaks coolant like a sieve out of the t stat housing when it is cold, but as soon as it heats up, it completely stops leaking. This is why I typically try to keep a vehicle with a coolant leak over night(if i cannot diagnose the leak right away).
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Unread 10-17-2013, 07:31 AM   #27
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After the block heater was tightened down I didn't notice any more coolant missing so I was happy.

Then day before yesterday I noticed that my new radiator cap was leaking or the new rad was leaking near the cap so back to the shop it went.

They replaced the cap and no more leaks! Yay!

Now it's back to eating coolant again. FML!

Any ideas? I do have wetness on the passenger floor board but it doesn't smell like coolant.
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Unread 10-18-2013, 07:25 AM   #28
Why J?
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Threw a pressure tester on it last night. Pressure dropped from 16-7lbs. And then I find the thermo leaking like a sieve.
image-2098039581.jpg

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Unread 10-18-2013, 12:35 PM   #29
Kalali
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Quote:
Originally Posted by Why J? View Post
Any ideas? I do have wetness on the passenger floor board but it doesn't smell like coolant.
Well, hmmm, carried any passengers lately with possible bladder control issues?

Sorry, could not resist.
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