Question about 1996 Mercury Sable
I hate to say it, but I think that you installed the thermostat upside-down. If so, the coolant is constantly circulating through the radiator, and it takes a very long time to come up to normal operating temperature, which means no heat to the passenger compartment. Try removing the "gooseneck" again and make sure that the "long" end of the thermostat is facing down into the engine. Good luck.
Posted on Oct 12, 2013
Testimonial: "thanks i will look at it but it would be up to the engine on my car because it is on the bottom of my engine so the long neck would be going up instead of down"
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Posted on Jan 02, 2017
SOURCE: no heat
if the heater hoses are hot on both sides(indicating the engine is at full temp) and you feel the heat controller in dash is working properly, i would suggest disconnecting both heater hoses and backflush heater core with decent amount of pressure. if this improves condition but does not solve completely, heater core replacement is necessary.
Posted on Nov 16, 2008
Did you run engine from cold, with heater (not defrost) on , rad cap off & wait for rad fan to come on 2 or 3 times before you put rad cap back on? Rev engine slightly and hold it there for 30sec. to 1 min. every once in a while while doing this to aid in increasing flow & remove air locks. If both hoses in & out are hot to touch, then you should be getting heat, and I would start looking at blend/air door etc on heater to make sure it's going to it's proper position.
Posted on Jan 02, 2009
If the hoses to and from the heater core are hot , and you say the heater core is hot , then the only answer is that the air duct that flows into or out of the heater core plenum ( housing ) is not opening.
Heater control on dash borad inoperative.
Not sure about 92 capri , some cars have a cable linkage , some work on vacume motors.
Try to find a haynes manual for your car , they will walk you through almost every step of anything you may ever want to do to your car.
You seem to know what you are doing , but I gotta ask ........the heater core you felt was up behind the dash inside the passenger compartment of the car right ?
Posted on May 10, 2009
This is extremely important on some cars, for instance my BMW. 1. Have the car parked in a slight uphill slope. Make sure there is enough coolant in the expansion jar.
2. Start the engine and wait for the thermostat to open (upper radiator hose becomes warm).
3. Open up the radiator bleeding nipples slightly with a large screwdriver (bleeding nipples normally made of plastic with a '+* for a screwdriver to fit, at the highest points in the cooling circuit).
4. Allow air bubbles to fizzle out until you get a steady stream of coolant leaking out, use rags to capture leaking coolant.
5. Then close the bleeding nipples, switch off the engine and wait a few minutes for pressure to come down.
6. Open up the cap on the expansion vessel carefully and fill just below the "hot" marking.
7. Check levels again after a few miles and refill further if needed.
Posted on May 31, 2009
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