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Old 12-17-2005, 01:57 PM
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a/c blower motor or heater blower - 300sdl

- this 86 300 sdl has a blower that is working very sporadically - makes this clicking noise - blows like hell and clicks - shuts off ... etc. - what does this sound like 2 u guys - the a/c blower motor, the heater blower, or the regulator ? what am i looking at here 2 fix this - please help - i am trying 2 sell this car asap !
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Old 12-18-2005, 03:47 AM
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Location: SW wash
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sounds like it is pulling tomany amps and tripping the cuircut breaker
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89 Ford F3504x4CC 7.3 IDI turboed Intercooler and running on wvo now powered by a 1997 Cumins
87 300SDL on bio and wvo killed by chevy truck 5-24-06
1999 E300TD black with gray int.
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Old 12-18-2005, 05:00 AM
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Quote:
Originally Posted by mxnz
- this 86 300 sdl has a blower that is working very sporadically - makes this clicking noise - blows like hell and clicks - shuts off ... etc. - what does this sound like 2 u guys - the a/c blower motor, the heater blower, or the regulator ? what am i looking at here 2 fix this - please help - i am trying 2 sell this car asap !
Hello!

Try to push the MAX button after it shuts off. This way you bridge the regulator and apply 12V directly to the blower. If then the blower starts working again it is either the PBU, but most likely the regulator.

If it does not blow even when you press the MAX button, since it still works every now and then, I would check the brushes and clean the commutator on the motor.

Of course I might be completely wrong as well
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