01 300m overheating /dumps all coolant whrn i shut off motor

Asked by Apr 26, 2015 at 03:01 PM about the 2001 Chrysler 300M STD

Question type: Maintenance & Repair

change t stat  if i run the car it seem to be ok until its parked after driving then the next time i get in to go anywhere it needs more coolant . can somebody nelp me to figure it out please would that be caused  by not being bleed out properly?

2 Answers

63,305

Sounds like the engine is heat soaking. First thing to do is flush out the cooling system and add fresh coolant. Since you've been having issues I'd suggest using a chemical cleaner while flushing the system. BUT on an older model this will most likely cause something (radiator, water pump, etc.) to spring a leak! If the cooling system flush/cleaning doesn't solve the problem you could have a worn timing chain. This is especially suspect if you've got some miles on the car, say 150,000 or higher. A worn timing chain will cause the valve timing to become retarded (late) and cause loss of power, heat soaking, boiling over, and possibly late transmission shifting. HTH. -Jim

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12,675

When you stop do you see a puddle of coolant under car? Where? The coolant has to be going somewhere. These cars have timing belt driven water pump and when the pump wears out it will leak coolant in by the timing belt and out the weep holes on the bottom of the timing belt cover.

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