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Maintenance & Repair Cooling Systems -- Problems & Solutions (Radiator, Fan, etc)
561 messages, Last post on Nov 12, 2009 at 1:37 PM
You are in the Maintenance & Repair Forum. Your Host is mr_shiftright
Hi, I have a 1995 Jeep Grand Cherokee Limited. It has been overheating for about 4-5 weeks now. It poured coolant after I gunned the engine to get up an overpass entrance. Since then I had the thermostat replaced since it seemed to be leaking around the thermostat gasket. It was still losing coolant and overheating so we replaced the water pump as there was coolant around that gasket also. It has quit losing coolant but still is overheating in stop and go traffic very quickly. I am hardly able to use my A/C without it overheating. I haven't taken it on any highway trips as I don't want to blow the engine. Any advice would be greatly appreciated. Oh as a side thought, when we replaced the water pump we had to remove the air filter system to gain enough room. In the process a small hose was dislodged and we don't know where it came from, it is still attached near the front drivers side tire well. I also had the radiator flushed this past weekend. Thank you for any help.
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The cooling fan does not turn, therefore the car overheats while city driving. It has new thermostat, new coolant temperature sensor. The sensor is receiving 5.1V from the PCM. Relay is good and the fuse is good too. When turning AC on the fan still does not come on.When plugging in an Actron code reader and turning the key on. The fan starts up immediately so I think the fan motor is working. Yet the fan never turns on while driving.
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Replying to: mellieg68 (Aug 01, 2005 4:36 pm)
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Replying to: ecoss11 (Aug 01, 2005 7:51 pm) |
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Replying to: bolivar (Aug 01, 2005 10:09 pm)
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I took my 1989 Cadillac Brougham to the shop this morning. I got a call from the technician about 20 minutes ago. He pressure-tested the cooling system and determined the problem was the heater control valve. The repair cost only $132. What a relief! I was envisioning all kinds of apocalyptic scenarios.
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Replying to: lemko (Aug 02, 2005 10:26 am) |
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| 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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