Question about 2002 Buick Park Avenue
When driving coolant temp reads 165 and heater blows cold. when parked and running coolant temp gets up to 208 and heater blows warm. What could cause this?
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Posted on Jan 02, 2017
SOURCE: 99 park avenue blows cold
As snowbird said, it's most likely your passenger climate control system. Could be a short in a wire or a burnt acuator that moves the passenger door open and close. If you don't have the money or time to troubleshoot the problem you can pull down the glovebox and you'll see a metal rod about 8 inches long connected to the acuator. If you pop it off by the white connector, you can move it to full hot or cold. If it was the heater core it wouldn't matter where the air is comming out, it'd be the same temp.
It'll take you 5 minutes tops to simply check it by moving that door.
Posted on Oct 30, 2008
off the top of my head you probably have digital controls
the jump probably gave the heater relay a jolt of elec. which made it freeze open or shut
try disconnecting battery for 5 minutes and reconnect it this should reset relay
also heres something to look at even though it gets cold a hose could have split and slow leak on passenger side check floor for wetness if so take to nearest auto shop this needs fixed right away
i had a car that the relays froze shut so i had to manual start it under neith the car with a long screw driver cause key wouldnt start it
temp guage only shows temp not low coolant you gotta pop the hood and check manually the coolant tank for low fluid
even with low fluid the car would have heated up quicker so the idea of low fluid is a gasp heater would have heated quicker too
check condensor in front the small radiator infront of big radiator to see if iced up a little hose water sprayed on it should loosen the ice if any try to see if theres a way in mornings to see if you have any coolant leaks
coolant leaks can break a car into parts and be costly
Posted on Dec 06, 2008
this doesnt sound like a thermostat problem, rather a restricted heater core.
The thermostat housing, however, is a cheap cross-your-fingers-fix, and can be located by tracing the upper radiator hose back to the engine. The housing the hose is clamped to is where the thermostat is located. Remove 2 bolts, and replace thermostat.
Posted on Jan 12, 2009
need to take car somewhere to have the code read with a scanner,try parts stores first some will do it for free if not the dealers have them
Posted on Sep 15, 2009
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