HELP with climate control for 87 5ktq

[Kneale Brownson]

My '87 exhibited the same intermittent blower operation before it finally 
failed completely.  In my case, the motor squeaked occasionally during 
normal operation before intermittence began.


At 08:01 AM 11/27/2000 -0500, Beatty, Robert wrote:


>Since there are a few replies on climate control.  I'm having a few problems
>with mine. (87 5ktq)
>
>Currently system is not charged with freon, as its november in new england,
>im not worried about it.  When getting in the car and starting it, the cc is
>set to def high.  SOMETIMES it starts right away with high speed blower, and
>other times it takes time to start.  I know there is a delay built into the
>system, but I was under the impression that def bypasses that delay and
>reguardless this delay is ocurring intermittantly with no dependancy on how
>long the car was shut off (sometimes all night, somtimes a couple hours
>sitting).  I have replaced the blower control module (or whatever its called
>)(the part that has a giant heat sink next to the blower under the hood).
>Is this a problem with the blower brushes or the is it the control module
>under the dash?
>
>
>Thanks
>
>Rob
>