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| Trouble in the Cooling System?.... http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=93036 |
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| Author: | Hardhatz [ Fri Jan 03, 2025 10:01 pm ] |
| Post subject: | Trouble in the Cooling System?.... |
This morning, Libby showed me a Low Coolant light. I checked. The bottle was about a quart low, and the light went out by the time I drove about a block. After my 20-mile drive, I let her cool for a couple of hours, then went to add a bit of coolant. When I took off the cap, there was a sizable Pop, as air came out of the bottle. Seems the cooling system was pressurized. Of course, I fear the worst. Libby has never been overly hot. Has never lost coolant before. Nothing seen on the ground. No moisture in the oil. What are the possibilities? |
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| Author: | WWDiesel [ Sat Jan 04, 2025 2:20 pm ] |
| Post subject: | Re: Trouble in the Cooling System?.... |
Perform this test: Post results. Quote: Jeep CRD Head Gasket Cold Engine Leak Test Procedure:
1. Engine off, cold engine preferably after setting overnight. 2. Remove the coolant reservoir cap located on top of the expansion tank to release any existing pressure that is still in the system and then replace the coolant reservoir cap tightly. 3. Start the cold engine and let it run for 60 seconds (1 minute) and no longer, then shut engine off. 4. Remove the coolant reservoir cap on top of the expansion tank again and listen closely and be attentive to note if any pressure escapes from the coolant reservoir. Even the most miniscule amount of built-up pressure escaping from the coolant system after only 60 seconds of run time would indicate a head gasket leak or worse, a possible cracked head. |
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