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Maintenance & Repair Cooling Systems -- Problems & Solutions (Radiator, Fan, etc)
552 messages, Last post on Nov 09, 2009 at 2:10 PM
You are in the Maintenance & Repair Forum. Your Host is mr_shiftright
| I have a 1990 olds cutlass supreme with about 70K on it and I'm having a cooling system problem. I went on a long road trip, about 1200 miles, and the day after i got back I had trouble starting the car. I drove it for a while on the highway and my low coolant, temp, and service engine light came on. I pulled over and coolant started spewing out of the reservoir. I tried to get myself back home and it died on the way back home. The next day I started the car and I noticed that hot coolant was not cycling back into the radiator so I replaced the thermostat. It started cycling around again so I drove it around town and the low coolant light would turn on for a few minutes and then turn off and over again. I noticed also that at a certain point the air conditioning would stop blowing cold air and I started to smell coolant. When I got home the coolant reservoir was full and coolant was leaking from the overflow hose. I cannot see any other visible leaks from the water pump, thermostat gasket or any where else. I am constantly keeping the coolant level high enough but my low coolant light still keeps coming on. What do I do? | |
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Replying to: Mr_Shiftright (Aug 02, 2005 5:09 am)
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checked water pump, ok checked thermostat, ok (new) cheked heater core, okthink i have air trapped in system? best way to totally flush system? sounds coming from under dash by heater core? no leakage. any suggestions? |
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Replying to: mellieg68 (Aug 02, 2005 4:49 pm)
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Replying to: masterpaul1 (Jul 29, 2005 5:25 pm) |
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Replying to: mellieg68 (Aug 02, 2005 6:01 pm) Well, look.... chronic overheating is always a TOUGH problem and it needs step by step diagnosis. I could name 20 reasons for overheating, from the obvious to the truly weird. Sounds like you and mechanic have just been throwing parts at it without more methodical thought on the matter. I'd suggest making sure your cooling fan is going on at the proper time, and if that's okay, a radiator flow test and if that's okay a cylinder leakdown test. Since this is a FAST overheat, it has nothing to do with drips here and there. You can also test your coolant for CO gases (combustion gas in the coolant due to bad head gasket or bad head). If your radiator wasn't removed and dunked, it wasn't cleaned.
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...like Barr's Stop-Leak really work or do they do more harm than good? I was about to take this approach to the problem I had with my Brougham, but got scared. I was afraid it would clog the water passages in the block and plug the radiator. I don't think it would've worked anyway after I found out what the problem was. Anyway, how do these products work?
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Replying to: lemko (Aug 03, 2005 9:18 am) |
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my low coolant light stays on but has plenty of coolant? anyone know why? thanks
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Replying to: skeeter2 (Aug 03, 2005 6:43 pm) |
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