#1  
Old 09-10-2021, 10:04 PM
markpj23 markpj23 is offline
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Join Date: Sep 2006
Location: Las Cruces NM
Posts: 390
Default 67 Catalina - Heater Controls Question

New to me 67 blows heat out of the floor vent continuously. The 'Select' knob is set to OFF and it doesn't matter what position I put it in - still blows heat out of the floor vent. Cannot find a fan speed control anywhere on the dash - just the Select and Temperature knobs.

I see there's a vacuum actuator on the side of the heater box, and it is hooked up but I've not checked vacuum. Heat out the floor vent only tells me it's probably not working.

Has to be something I'm missing or a starting point to troubleshoot....

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Mark
Las Cruces NM
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Current Project:
'67 Catalina Convertible
400 4-spd
  #2  
Old 09-11-2021, 01:34 AM
stuta stuta is offline
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Join Date: May 2005
Location: New Jersey
Posts: 85
Default

Hi Mark

Sorry, I can't help you with what's wrong with the heater in your Cat. But, I recently saw a Youtube video that somewhat explained how and why the heater controls work on a 1966 Catalina. Very similar to your 67
Look up on Youtube,
Rare Classic Cars ... The perfect family car.. 1966 Pontiac Catalina
Go to 3:07 on the video and listen to the explanation.
Again, sorry I couldn't post the link. I have no clue how to do that. Maybe this will help?

Good luck my friend

  #3  
Old 09-11-2021, 09:39 AM
markpj23 markpj23 is offline
Senior Chief
 
Join Date: Sep 2006
Location: Las Cruces NM
Posts: 390
Default

Quote:
Originally Posted by stuta View Post
Hi Mark

Sorry, I can't help you with what's wrong with the heater in your Cat. But, I recently saw a Youtube video that somewhat explained how and why the heater controls work on a 1966 Catalina. Very similar to your 67
Look up on Youtube,
Rare Classic Cars ... The perfect family car.. 1966 Pontiac Catalina
Go to 3:07 on the video and listen to the explanation.
Again, sorry I couldn't post the link. I have no clue how to do that. Maybe this will help?

Good luck my friend
Hey that helped a lot - thanks!

__________________
Mark
Las Cruces NM
___________________________
Current Project:
'67 Catalina Convertible
400 4-spd
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