Thread: knocking noise
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Old 07-24-2014, 11:56 PM
Wallio Wallio is offline
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Default Re: knocking noise

It's alive and kicking again.
After work today I tackled this issue again. I was not convinced it was a head gasket. A friend of mine had a pressure tester which we installed. Noticed the pressure getting higher and higher. We shut off the car after a while running. He then heard the noise I was talking about. He said maybe the head gasket, but again no white smoke or bubbling in the overflow tank. We started the car up again and let it run. I noticed my cooling fan would never came on. I said there is probably air at the thermostat. We took out the hose going to the upper intake from the water pump. Coolant game out we then made the car run again and removed the pressure tester and a splurge of coolant came out. I kept it running and added more water. After a while I noticed the sound of the car changed. It was then my cooling fan came on and that's when I knew it was air the problem. After a while running ... checked the temp on the upper hose and it was 163 and thermostat opened.
All seemed to fall back in place. Drove a good part of the night and it's all good so far. Bottom line it was air which was stuck in the system and was hard to come out.
Unless it's a head gasket on his way out? All I can say...happy to drive it again after four years of storage.

Thank you much everybody for your help.
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