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Mod | | | Forums66 Topics128,164 Posts1,056,978 Members48,458 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Jul 2011 Posts: 257 Shop Shark | | Shop Shark Joined: Jul 2011 Posts: 257 | Starting the install of my Deluxe Heater. Bought new control cables, there are three different lengths of cables, which cables go where? | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | temp control cable - longest. goes into the high end of the plenum and down to the ranco
air inlet cable - 2nd longest, behind the fan to the arm near the vent below the motor
defrost cable - shorty
you really can't put them on wrong, they all just reach
Bill | | | | | Joined: Jul 2011 Posts: 257 Shop Shark | | Shop Shark Joined: Jul 2011 Posts: 257 | temp control cable - longest. goes into the high end of the plenum and down to the ranco Thanks for the reply. Please excuse my ignorance on your terminology, but what is plenum and ranco? Is that the heater core shroud and thermal heater valve? By deduction, I am assuming so, but just want to make sure. Thanks | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | yes and yes, the plenum is the part of the case the warm air flows up to the defrost vents - the 'thermal heater valve' is called a Ranco valve, should you wind up needing to hunt one down
Bill | | | | | Joined: Jul 2011 Posts: 257 Shop Shark | | Shop Shark Joined: Jul 2011 Posts: 257 | Thanks for the clarification. Do I need to lube the cables, or they fine as is? | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | I'd leave'em alone, shouldn't be a problem for decades  Bill | | |
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