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post #1 of 5 Old 01-25-2008, 04:42 AM Thread Starter
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Exclamation 2006 charger 3.5 se overheating HELP!

PLease help My 06 charger is overheating it does NOT overheat when its ideling or driving around town butonce i jump onto the freeway it overheats. I had a new T-STAT put in, still same problem then i had the radiator flushed still same problem the fans are working fine i cant figure it out or my mechanic i then took it to the dealer ship then said the water pump is leaking a little bit but im not sure thats why its over heating i though it might be a craked head or a blown head gasget please help i dont know what to do again its fine when idleing and driving around town butonce i jump on the freeway it overheats
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post #2 of 5 Old 01-25-2008, 04:43 AM Thread Starter
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also i have 84k miles on it
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post #3 of 5 Old 01-25-2008, 05:17 AM
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do you drive in dusty and dirty conditions? Maybe you should try and power wash your radiator. Get all that dirt and muck off of it and it may help
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post #4 of 5 Old 01-25-2008, 06:01 AM
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A defective waterpump can make it overheat on the highway...Darkstar
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post #5 of 5 Old 01-29-2008, 12:32 PM
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I had this problem with a Toyota some time ago with high mileage. Would start to overheat on highway, especially when climbing hills. To get it to cool down, I just had to stop and let the car idle, and it would cool down again. Turned out to be a 75% blocked radiator - flushing did no good - they had to rod it out, and that finally fixed it.

The infamous "coolant gunk" problem reported in this forum affected 3.5 as well as 6.1 liter engine Chargers. Did your car have this problem, and if so, did you have the issue addressed/fixed? If not, that might be contributing, and you may need a better flushing out of your cooling system.

A leak at the water pump usually means your water pump is bad or getting ready to go bad. Might want to have that addressed sooner rather than later.

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Last edited by ortizmro; 01-29-2008 at 12:37 PM.
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