Question about 1996 Buick Regal Olympic Gold

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Replaced bad AC unit with floater pully, now no heat, overheating

1996 Regal 3.8L

1) Replaced leaking coolant bypass tube (elbow from belt tensioner to engine block)
2) Replaced bad AC compressor with a basic floater pulley.
3) Replaced serpentine belt.
4) Refilled / topped off antifreeze with 50/50.

Car now purrs like a kitty. However I now have no heat inside the car. Blower works, but I only get cold air on any/all settings. Test drove the car, and after aprox 1 mile car came close to over heating. I parked it, opened the hood with it running and noticed the radiator fans are not turning on.

I'm at a loss here. Any ideas guys?

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  • prjkt2501 Jan 27, 2009

    I should have added that I did in fact bleed the system. What I did was run the car till the temp was up to 1/4, shut off the car and opened up the screw valve atop the thermostat housing until coolant began to flow out. However, very little air came out when I did this. This is all starting to make me think my thermostat is stuck closed.




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Most likely when you replaced coolant line and refilled rad the system was not bled properly.
fill the system with 50/50 again and top up the reservoir. run the engine to 2000 rpm and look at temp gauge . it should rise to middle and drop to low this means t stat opend and air is out now let engine idle and top up coolant. good luck

Posted on Jan 27, 2009

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