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Forum: C4 Cooling and Heating Systems

For discussion of Air Conditioning/Heater/Radiator issues


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Unknown bracket location
    by C4Maverick 3/16/24 9:23pm
     Views: 315, Replies: 2
Last Activity by: Bob DeCardenas 
    3/17/24 12:31pm Go directly to most recent post

No heat in my '95
    by RitaJean 1/10/23 10:21pm
     Views: 945, Replies: 3
Last Activity by: Superc63 
    1/11/23 11:57am Go directly to most recent post

Blower motor runs on High constantly
    by elvis628 9/6/22 4:46pm
     Views: 764, Replies: 6
Last Activity by: elvis628 
    10/24/22 12:13pm Go directly to most recent post

96 blend door actuator
    by 96 fred owen 3/25/22 9:50am
     Views: 1594, Replies: 9
Last Activity by: 96 fred owen 
    3/29/22 9:58am Go directly to most recent post

Heater blows cold
    by AFammo 1/14/22 5:47am
     Views: 1802, Replies: 6
Last Activity by: lkedmiston 
    3/8/22 4:06pm Go directly to most recent post

1990 L98 Cooling issue.
    by BobPurz 9/29/21 7:37am
     Views: 2744, Replies: 7
Last Activity by: VetteTonic 
    10/9/21 11:08pm Go directly to most recent post

1991-1996 Radiator/Condenser Guard, AC and FansTroubleshooting
    by Superc63 5/4/21 6:53am
     Views: 1247, Replies: 4
Last Activity by: Black Shark 
    5/13/21 10:30am Go directly to most recent post

VIDEO: 1990-1993 Blend Door Actuator and Heater Core Removal
    by Superc63 4/2/21 3:17pm
     Views: 4632, Replies: 3
Last Activity by: Superc63 
    5/4/21 7:14am Go directly to most recent post

1990 C4 Z51 6sp - 3 Row Radiator
    by grantar2 4/7/21 5:21pm
     Views: 1250, Replies: 3
Last Activity by: DanC4-90 
    4/21/21 12:50pm Go directly to most recent post

86 pacecar A/C not working.
    by skeech86 7/8/20 9:24am
     Views: 1572, Replies: 4
Last Activity by: skeech86 
    7/12/20 10:01am Go directly to most recent post

Climate Controle Module Issue
    by TomLathen 5/19/20 9:25pm
     Views: 1850, Replies: 2
Last Activity by: Corveddie 
    6/2/20 2:16pm Go directly to most recent post

help with fan speed electronic controller
    by Aussie Tony 10/23/19 2:40am
     Views: 1560, Replies: 1
Last Activity by: Dave91TM 
    10/29/19 6:24pm Go directly to most recent post

Temp Gauge not Working.
    by Tsmooth68 8/27/19 10:49pm
     Views: 3365, Replies: 4
Last Activity by: Tsmooth68 
    8/28/19 8:22pm Go directly to most recent post

Cooling System
    by Macho 007 1/5/19 7:45pm
     Views: 2174, Replies: 2
Last Activity by: ratfink18 
    6/14/19 2:27pm Go directly to most recent post

Manual Switch for Secondary Fan
    by aldocar 4/9/19 9:58am
     Views: 1354, Replies: 0
Last Activity by: aldocar
    4/9/19 9:58am 

climate control
    by epohdivad 7/25/13 5:29pm
     Views: 11456, Replies: 8
Last Activity by: Hot Rod Roy 
    3/6/19 11:36pm Go directly to most recent post

heater core
    by legsdiamond 1/9/19 12:09pm
     Views: 3649, Replies: 7
Last Activity by: Black Shark 
    2/24/19 1:47pm Go directly to most recent post

Old-New to me vette-cooling fan (can't figure out)
    by BigDogYoop 8/8/18 4:49pm
     Views: 2959, Replies: 1
Last Activity by: Hot Rod Roy 
    8/11/18 1:32am Go directly to most recent post

my 1990 runs above 230 degrees
    by BillyDee 8/21/12 12:35am
     Views: 27365, Replies: 34
Last Activity by: Willy 
    8/7/18 2:52pm Go directly to most recent post

1990 AC problems from Ottawa Canada
    by Willy 7/17/18 11:03am
     Views: 2160, Replies: 1
Last Activity by: Willy 
    8/7/18 2:50pm Go directly to most recent post

Blower motor only works on high, also no A/c
    by bluenoser13 7/25/18 12:39pm
     Views: 2177, Replies: 1
Last Activity by: Black Shark 
    7/26/18 8:02am Go directly to most recent post

96 hvac
    by paulaann 7/15/18 3:04am
     Views: 1509, Replies: 0
Last Activity by: paulaann
    7/15/18 3:04am 

Primary Fan Runs all the time
    by aldocar 5/27/18 2:19pm
     Views: 2823, Replies: 6
Last Activity by: aldocar 
    6/13/18 10:10am Go directly to most recent post

auto control on 96 c4
    by paulaann 5/18/18 3:17pm
     Views: 2516, Replies: 2
Last Activity by: ratfink18 
    6/8/18 10:08am Go directly to most recent post

86' vette a/c not blowing cold or hot just vent air
    by CaliC4 5/31/18 2:47pm
     Views: 2646, Replies: 2
Last Activity by: ratfink18 
    6/8/18 9:58am Go directly to most recent post