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Forum: C4 Cooling and Heating Systems

For discussion of Air Conditioning/Heater/Radiator issues


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A/C Compressor Clutch Won't Engage
    by chevykid 2/25/25 2:30pm
     Views: 553, Replies: 2
Last Activity by: chevykid 
    2/26/25 4:34pm Go directly to most recent post
How many have had cracked radiators-Should we just replace to be safe?
    by TripleBlackBeauty 8/20/24 12:30pm
     Views: 455, Replies: 3
Last Activity by: Phat98 
    8/21/24 10:27am Go directly to most recent post
Unknown bracket location
    by C4Maverick 3/16/24 6:23pm
     Views: 786, Replies: 2
Last Activity by: Bob DeCardenas 
    3/17/24 9:31am Go directly to most recent post
No heat in my '95
    by RitaJean 1/10/23 7:21pm
     Views: 1607, Replies: 3
Last Activity by: Superc63 
    1/11/23 8:57am Go directly to most recent post
Blower motor runs on High constantly
    by elvis628 9/6/22 1:46pm
     Views: 1320, Replies: 6
Last Activity by: elvis628 
    10/24/22 9:13am Go directly to most recent post
96 blend door actuator
    by 96 fred owen 3/25/22 6:50am
     Views: 2496, Replies: 9
Last Activity by: 96 fred owen 
    3/29/22 6:58am Go directly to most recent post
Heater blows cold
    by AFammo 1/14/22 2:47am
     Views: 2603, Replies: 6
Last Activity by: lkedmiston 
    3/8/22 1:06pm Go directly to most recent post
1990 L98 Cooling issue.
    by BobPurz 9/29/21 4:37am
     Views: 3927, Replies: 7
Last Activity by: VetteTonic 
    10/9/21 8:08pm Go directly to most recent post
1991-1996 Radiator/Condenser Guard, AC and FansTroubleshooting
    by Superc63 5/4/21 3:53am
     Views: 1560, Replies: 4
Last Activity by: Black Shark 
    5/13/21 7:30am Go directly to most recent post
VIDEO: 1990-1993 Blend Door Actuator and Heater Core Removal
    by Superc63 4/2/21 12:17pm
     Views: 6608, Replies: 3
Last Activity by: Superc63 
    5/4/21 4:14am Go directly to most recent post
1990 C4 Z51 6sp - 3 Row Radiator
    by grantar2 4/7/21 2:21pm
     Views: 1680, Replies: 3
Last Activity by: DanC4-90 
    4/21/21 9:50am Go directly to most recent post
86 pacecar A/C not working.
    by skeech86 7/8/20 6:24am
     Views: 2207, Replies: 4
Last Activity by: skeech86 
    7/12/20 7:01am Go directly to most recent post
Climate Controle Module Issue
    by TomLathen 5/19/20 6:25pm
     Views: 2260, Replies: 2
Last Activity by: Corveddie 
    6/2/20 11:16am Go directly to most recent post
help with fan speed electronic controller
    by Aussie Tony 10/22/19 11:40pm
     Views: 2043, Replies: 1
Last Activity by: Dave91TM 
    10/29/19 3:24pm Go directly to most recent post
Temp Gauge not Working.
    by Tsmooth68 8/27/19 7:49pm
     Views: 4245, Replies: 4
Last Activity by: Tsmooth68 
    8/28/19 5:22pm Go directly to most recent post
Cooling System
    by Macho 007 1/5/19 4:45pm
     Views: 2959, Replies: 2
Last Activity by: ratfink18 
    6/14/19 11:27am Go directly to most recent post
Manual Switch for Secondary Fan
    by aldocar 4/9/19 6:58am
     Views: 1559, Replies: 0
Last Activity by: aldocar
    4/9/19 6:58am 
climate control
    by epohdivad 7/25/13 2:29pm
     Views: 12789, Replies: 8
Last Activity by: Hot Rod Roy 
    3/6/19 8:36pm Go directly to most recent post
heater core
    by legsdiamond 1/9/19 9:09am
     Views: 4212, Replies: 7
Last Activity by: Black Shark 
    2/24/19 10:47am Go directly to most recent post
Old-New to me vette-cooling fan (can't figure out)
    by BigDogYoop 8/8/18 1:49pm
     Views: 3468, Replies: 1
Last Activity by: Hot Rod Roy 
    8/10/18 10:32pm Go directly to most recent post
my 1990 runs above 230 degrees
    by BillyDee 8/20/12 9:35pm
     Views: 29981, Replies: 34
Last Activity by: Willy 
    8/7/18 11:52am Go directly to most recent post
1990 AC problems from Ottawa Canada
    by Willy 7/17/18 8:03am
     Views: 2599, Replies: 1
Last Activity by: Willy 
    8/7/18 11:50am Go directly to most recent post
Blower motor only works on high, also no A/c
    by bluenoser13 7/25/18 9:39am
     Views: 2585, Replies: 1
Last Activity by: Black Shark 
    7/26/18 5:02am Go directly to most recent post
96 hvac
    by paulaann 7/15/18 12:04am
     Views: 1735, Replies: 0
Last Activity by: paulaann
    7/15/18 12:04am 
Primary Fan Runs all the time
    by aldocar 5/27/18 11:19am
     Views: 3479, Replies: 6
Last Activity by: aldocar 
    6/13/18 7:10am Go directly to most recent post