What is your question?
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What is your question?
My car has 136,000 original miles on it. The prior owner was a snowbird so the car was only driven 4 months out of the year for the last 6 years. Service records show the car has been routinely serviced. The car has been very well maintained and is in impeccable condition. There are no external leaks, the cooling system is full and free of air, fans are functional. It runs great. All fluids are clean. The last owner had the water pump, timing belt and thermostat changed and put in a new battery. It may need a starter. Once it has gone about 10 miles, it will start run ing hot. Turning on thr heater will always bring the temperature down. In fact, the temperature gauge will even drop to normal when the car is idling and the heater has been turned off. What in the world could be the problem? I really need an expert on this particular car and issue. Yes, the hoses are good, the coolant tank cap is good, and everything seems to check out. Can someone please help? Thank you.
What makes this problem better or worse?
Nothing. Temp can rise and drop to normal all in the same trip.
How long has your 2000 Chrysler LHS had this problem?
I've only had the car a couple weeks but the previous owner had a lot of work done trying to resolve the overheating problem.
2 Replies
Hello, there is nothing more special about this vehicle compared to any other vehicle regarding your concern. Basic conventional cooling system testing needs to be performed to find out what is happening. I would not rush to judgement; you could even have an air pocket in the cooling system that needs to be purged following the water pump and thermostat repairs. Coolant flow needs to be checked through the system. Ensure air is purged. Verify hoses before and after the heater core are both hot when at operating temperature. Check the radiator for proper flow as well. Ensure the proper temperature thermostat was installed. In the worst case scenarios, you could have an internal engine coolant leak -- but I would not rush to judgement here and would take everything step by step. It will just take someone with thorough knowledge of a conventional cooling system to dissect each component and principles of operation to find the failure. Good luck!
Restricted radiator coolant flow is suspect. Difficult to see *inside* radiator! This is going to require **hands-on** testing by qualified personnel.
Restricted radiator problems are usually more pronounced while engine is under load > accelerating up grade. Good luck!
Nail on the head, my friend. I took the car into the dealership so they could figure out the issue. They tested everything and still didn't know what the problem was. I was driving to work one morning and the radiator burst open. Replaced the radiator and never had the problem again.