Question about Jeep 2003 Liberty Sport 3.7 V6
My husband was driving my 2003 Jeep Liberty Sport around 65 mph and noticed that the heater was not working, he then noticed that the temp was indicating that the engine was overheating. He reduced his speed to around 50 - 55 and the engine temp dropped to about center of the guage but the heater was still not working. He stopped and checked the fluid in the radiator and it was almost empty. He put a 50/50 mix of coolant and water in, started it back up and left the heater on. Again the engine temp started rising as he accelerated. He turned the heater off and kept the Jeep at about 50 mph and got it home, but the engine temp continue to creep to the hot side of the guage. I can discern no leaks in the hoses or radiator which leads me to believe that the thermostat is bad. Does this seem to be a logical conclusion?
If it is just a fluid issue, the problem is that there is air in the system, and every time air gets to the water pump, it can't pump anything. You need to pull it up on a sharp incline (as close as you can find to 45 degrees, run it for a bit and then turn it around on the hill to force the air out of the system.
HOWEVER, I'd bet that it's the water pump. The water pumps used at that time had plastic impellers, and they disintegrate and little chunks get all through the coolant system. The dealership wanted almost $1,200 to replace it and I had to leave it for a week. I limped down the street to Firestone Auto Care and they did it for $450 in four hours. 50,000 miles later, no problems.
Posted on Mar 16, 2017
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Posted on Jan 02, 2017
It is probably the starter motor wiring not making good contact (either the thick wire from the battery or the ground wire on the solenoid. Clean up the contact areas and try again! If you still don't get the solenoid to push the starter gear into position, the solenoid needs to be replaced ormaybe just lubricated with CRC or WD 40 spray!
Posted on Jan 01, 2013
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