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Re: Heater Core & Blower Motor???'ss Posted by Ari [Email] (#2847) [Profile/Gallery] (more from Ari) on Tue, 30 Nov 2004 05:18:40 In Reply to: Heater Core & Blower Motor???'ss, btm, Mon, 29 Nov 2004 15:37:36 Members do not see ads below this line. - Help Keep This Site Online - Signup |
As Noel says, you'll smell a leaky heater core pretty quickly. A whitish substance on the inside of the windshield is classic heater core leak, BUT it should also smell of coolant. When you wipe it off, does it streak and smear? If so, it's coolant. If it wipes right away, it can be just condensation.
There is no connection between the recirc flap and the blower motor. Yes, they're part of the climate control, but that's about it. How did you decide that the recirc. flap was the culprit? That the blower motor worked if the flap was in one position but not another?
Typical problems for the blower motor is to not work at all, or to be stuck on high speed. Rarely do these problems fix themselves. I wonder if you have nothing more complex than a badly seated connector. Sometime the blower works, sometimes it doesn't, and any correlation to the recirculation flap position is merely coincidence. And if you're stuck in recirc, in cool/cold weather you'll be blowing moisture trapped in the system on the windshield, causing it to fog.
At a minimum, sniff the vents. If they don't smell strongly of coolant when the car is warm, it's not the heater core. And I'd pop out the ACC unit and re-seat the connector. I'd then open the hood and remove the horizontal plastic panels at the base of the windshield, and re-seat all of the blower motor connectors.
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