On a 1990 Chrysler New Yorker where is the coolant drain valve/plug and where is...

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cheercoach1915

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...the thermostat? see above... I'm a single mother with no family or friends areound and am running low on cash right now. My engine is overheating within just a few minutes of driving. Coolant levels look fine. Not sure if the mixture is ok. No obvious leaks have been found anywhere. Also the oil color is fine and there is no additional white smoke from the exhaust. I have done other auto repair before but have never ever messed with the cooling system.

The fans come on ok but even at an idle the engine will not cool down on its own. It must be shut off.

I am considering changing the thermostat and flushing the system but HAVE CERTAIN CLUE where to start. Most references indicate thermostats being off of the water pump but I'm lost.

I am VERY mechanically inclined and any help would be appreciated.

I know that I should drain the coolant add water... and cleaner or whatever its called and run the car at idle for awhile then drain again and repeat. Then add a 50.50 mix
 
follow the top radiator hose towards the engine and you will find the thermostat housing, it in there. the drain plug for the radiator should be on the bottom of the radiator.
 
It sure sounds like your thermostat is stuck closed.Pretty easy to replace & yes you will find it on most cars by following the upper radiator hose to the engine.Wouldn't neccesarily recommend "flushing" the radiator at this point...if you do, dispose of old coolant properly.Auto parts stores often have helpful employees (and even brochures) to help you do this.Good luck. P.S. have your coolant protection tested (little ball testers only a few dollars at store).If it tests ok (and still looks good) you will just need to add a little after repairs.NEVER open a hot radiator.Burp the air out of system when you're done by watching coolant level in radiator (cap off) and adding as needed.When your new thermostat opens,the coolant level will drop (and start circulating).Top off & happy motoring & congrats for a job well done.
 
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