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Heater problem in Cadillac Fleetwood 1978

Started by mauser, October 16, 2009, 05:09:39 PM

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mauser

October 16, 2009, 05:09:39 PM
Dear friend.
We have here a Cadillac fleetwood 1978 and we have some problem with the heater, it always blowe cold,
what can be the problem, is it some electric or what?
Joivill
Johann Vilhjalmsson
CLC # 24743
Cadillac Fleetwood Brogham D' Elegance 1976
Cadillac Eldorado 1983

Dave Shepherd

#1
October 16, 2009, 07:30:51 PM Last Edit: October 17, 2009, 05:09:35 PM by Dave Shepherd
Not much info, you set it to 85 and it blows cold?  If so check the water control valve see see if you are getting circulation to the heater core, I assume the air comes out of the heater, as I said the info is limited here.

TJ Hopland

#2
October 16, 2009, 09:58:03 PM
Are you sure the fan is running?  I have seen several 78's with fan problems.  One seemed to have enough 'ram air' effect to blow some when you were going down the road.   
73 Eldo convert w/FiTech EFI, over 30 years of ownership and counting
Somewhat recently deceased daily drivers, 80 Eldo Diesel & 90 CDV
And other assorted stuff I keep buying for some reason

mauser

#3
October 17, 2009, 04:00:54 PM
Thanks  the fan runing, but just on the defross. hi and lo not work also automatic, but we have to start the engsin to chek the water hose for the blowerwill be hot .
joivill
Johann Vilhjalmsson
CLC # 24743
Cadillac Fleetwood Brogham D' Elegance 1976
Cadillac Eldorado 1983
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