How to fix antifreeze leaks in PT cruisers

Written by eric erickson
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How to fix antifreeze leaks in PT cruisers
Continual refilling with coolant will waste money without fixing the problem. (containers of antifreeze and coolant for cars. products image by L. Shat from

The Chrysler PT Cruiser has been a popular alternative to traditional sedans and wagons since its inception in 2000, featuring a uniquely classic style at an affordable price. One problem PT Cruiser owners have had over the years involves the heating/cooling system. Luckily, diagnosing and fixing some coolant leaks can be done without an expensive mechanic's bill.

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  1. 1

    Check coolant pressure. Heater core pressure gauges can be used to determine whether or not there is a leak somewhere in the heating/cooling system. This can also be done without a gauge by topping off coolant and running the engine for 10 minutes. A leak in a hose may be spotted visually. If not, leaks can generally be spotted on the ground beneath the radiator.

  2. 2

    Bleed air pockets. Often, air pockets can prevent fluid from circulating through the radiator. Topping off the coolant and making sure the coolant has time to settle through any air pockets will ensure that a proper investigation of leaks can be done.

  3. 3

    Replace damaged hoses. Leaking hoses or damaged hose connections can sometimes be fixed temporarily with a coolant additive, but hoses should be replaced quickly, much like a temporary seal on a flat tire needs to be repaired as soon as possible. If no visible leak is spotted in either the intake or outtake radiator hose, a crack could be present in either the head gasket or in the engine block. With these problems, as well, using temporary coolant fixes may help a driver get down the road, but professional repairs will be needed soon.

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