Highest blower speed position doesn't work on 81 El Camino

rogus

Master Mechanic
Mar 14, 2020
309
84
28
the blower speed switch works on every setting except the highest. Any suggestions on how to correct this?
 

maxi426

Apprentice
Sep 20, 2018
86
82
18
Check for burned connection in the connector above the rear of the right valve cover
 
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oldsofb

Royal Smart Person
Supporting Member
Dec 7, 2007
1,368
3,962
113
Maryland
Relay
High Speed Relay.jpg



Connector
Relay Connector.jpg


Hutch
 
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L05edSS

Greasemonkey
Nov 29, 2022
149
79
28
the blower speed switch works on every setting except the highest. Any suggestions on how to correct this?
i got same problem in my ss since getting it back from engine swap let me know your fix. i thought was just part of deleting the computer and got used to it.
 

Ribbedroof

Comic Book Super Hero
Supporting Member
Jan 4, 2009
4,861
6,887
113
Wellston, OK
This is the one that usually melts from the high draw on the red wire. Between rt valve cover and the HVAC box...you can see the shell is black by the red wire. First Malibu I had it was completely melted. The shell halves are available from Mouser, among others
IMG_0739[1].JPG
 
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79 GP 4 speed

Master Mechanic
Nov 12, 2017
447
535
93
I don't remember for sure but I think I was told if the a/c doesn't work that high speed for the fan doesn't either. I may be wrong as that has happened a few times before.😉
 

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