Heater Question
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Freshman User
Joined: Mar 2006
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Heater Question
I'm sure the answer to this is probably something painfully simple that I will smack myself for not knowing, but I need help with a minor problem. The heater in my (1990) Bronco seems to only work on the highest setting. When it is any of the lesser 3 speeds it doesn't come on at all. Any thoughts?
Also, possibly unrelated, I sometimes get a whiff of something when driving that smells like oil burning off the engine. However I've looked over the truck multiple times and find no evidence of any oil leaks or such. Any idea what could be causing this?
Thanks,
C.
Also, possibly unrelated, I sometimes get a whiff of something when driving that smells like oil burning off the engine. However I've looked over the truck multiple times and find no evidence of any oil leaks or such. Any idea what could be causing this?
Thanks,
C.
Lead Driver
Joined: Sep 2002
Posts: 9,182
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From: Gateway to the West
Chances are that the resistor pack for the blower motor has failed or come disconnected. The reason it still works on "HI" is because the blower motor is receiving the full battery voltage without the resistance from any resistors. The unfortunate thing is that the resistor pack is a dealer or salvage yard part. I'm not aware of anyone making this component aftermarket.
With the smell of something burning, could be anything. Its unlikely that the two are related if the blower no longer runs at all on the lower settings.
With the smell of something burning, could be anything. Its unlikely that the two are related if the blower no longer runs at all on the lower settings.
Postmaster
Joined: Jun 2001
Posts: 2,809
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From: Loveland, CO.
Originally Posted by Cerulean
Also, possibly unrelated, I sometimes get a whiff of something when driving that smells like oil burning off the engine. However I've looked over the truck multiple times and find no evidence of any oil leaks or such. Any idea what could be causing this?
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Freshman User
Joined: Mar 2006
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All right, I'll check that out first chance I get tomorrow. (Truck has about 96k miles on it, so is probably due for some leakage...)
Thanks for your help with this, guys. As always it is greatly appreciated.
Thanks for your help with this, guys. As always it is greatly appreciated.
