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Posted on Jan 02, 2017
the heater bypass is quite simple, if you look at the firewall you will see two medium sized coolant lines, remove them from the firewall and link them together using a proper sized tube, you can purchase a kit at a parts store quite cheaply
Posted on Oct 11, 2008
as long as the engine temperature is normal, i would suspect a clogged heater core, the dex-cool antifreeze is notorious for building up deposits in cooling system. have heater core flushed first to see if it makes any difference
Posted on Nov 16, 2008
I have and 98 Intrepid 3800 motor, and had same problem.
I tried a few things, but what finally worked was when I took the car for a complete cooling system flush, they opened the radiator and cleaned every single passage line, flushed motor and heater core,
It cost me about $100 but I havent had a problem since. I recommend you do the same.
There is a screw on the thermostat housing that is used to purge the air out of the cooling system. On your owner's manual are detailed instruccions of this procedure.
If helpful, click below. Good Luck
Posted on Apr 05, 2010
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