Air bubbles in coolant tank, lots of pressure - Saab 9000 Bulletin Board - Saabnet.com
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Air bubbles in coolant tank, lots of pressure
Posted by sully (more from sully) on Tue, 30 Mar 2004 17:40:54
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So this weekend I thought for sure I had a bad head gasket. I'm getting air bubbles coming up from the water pump into the coolant tank and the system is getting highly pressurized. The tank will either overflow or the level will drop until you open the cap to relieve the pressure. As a last test before jumping the gun, I did a compression test and all cylinders come back at 195psi, dead on. So I'm thinking this is good news but what is causing the air to enter the coolant and create this much pressure? This will happen when the car is just idling. Could the water pump do this without leaking coolant at all? Could the gasket be bad and yeild good compression test?
posted by 68.118.235...
Posts in this Thread:
- Air bubbles in coolant tank, lots of pressure, sully, Tue, 30 Mar 2004 17:40:54 <-- Viewing This Message
- Re: Air bubbles in coolant tank, lots of pressure, John Rose, Tue, 30 Mar 2004 19:53:39
- Yes, saabaru, Tue, 30 Mar 2004 18:11:39
- Re: Yes, David, Wed, 31 Mar 2004 10:44:46
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