What is your question?
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What is your question?
This past summer I purchased a 2000 Jeep Gr Cherokee Laredo with 89,000 miles. As the temperatures got colder I noticed the heater was blowing luke warm air at best. The coolant was a bit low so we added some. Still luke warm. Replaced the thermostat. Still luke warm. Finally took it in to a mechanic and he replaced the water pump and flushed it twice. He said it may need another flush to completely restore heat. It was blowing hot when we left, but has since gone back to being luke warm. The guage reads around 210 on the dash. The hoses feel fine. Could it be that it needs another flush or is it more like to be something else? I hate to spend the money to do that again with no results.
What makes this problem better or worse?
Worse when cold and when idling
How long has your 2000 Jeep Grand Cherokee had this problem?
a few months
2 Replies
Hello, If you had that much corrosion and build-up of contaminants in the cooling system that your technician was not comfortable with two cooling system flushes, I would say it is worth a look. The fact that the heat blew hot after flushing twice, and slowly returned to luke warm is indicative of slow buildup, but you would really need to base the need for a flush based on the condition of the coolant, presence of contaminants, and feeling both heater hoses to see if there is equal pressure and temperature in both as the engine warms up with the heater on.