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Forum: C4 Cooling and Heating Systems

For discussion of Air Conditioning/Heater/Radiator issues


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How many have had cracked radiators-Should we just replace to be safe?
    by TripleBlackBeauty 8/20/24 11:30am
     Views: 307, Replies: 3
Last Activity by: Phat98 
    8/21/24 9:27am Go directly to most recent post

Unknown bracket location
    by C4Maverick 3/16/24 5:23pm
     Views: 671, Replies: 2
Last Activity by: Bob DeCardenas 
    3/17/24 8:31am Go directly to most recent post

No heat in my '95
    by RitaJean 1/10/23 6:21pm
     Views: 1397, Replies: 3
Last Activity by: Superc63 
    1/11/23 7:57am Go directly to most recent post

Blower motor runs on High constantly
    by elvis628 9/6/22 12:46pm
     Views: 1112, Replies: 6
Last Activity by: elvis628 
    10/24/22 8:13am Go directly to most recent post

96 blend door actuator
    by 96 fred owen 3/25/22 5:50am
     Views: 2269, Replies: 9
Last Activity by: 96 fred owen 
    3/29/22 5:58am Go directly to most recent post

Heater blows cold
    by AFammo 1/14/22 1:47am
     Views: 2328, Replies: 6
Last Activity by: lkedmiston 
    3/8/22 12:06pm Go directly to most recent post

1990 L98 Cooling issue.
    by BobPurz 9/29/21 3:37am
     Views: 3595, Replies: 7
Last Activity by: VetteTonic 
    10/9/21 7:08pm Go directly to most recent post

1991-1996 Radiator/Condenser Guard, AC and FansTroubleshooting
    by Superc63 5/4/21 2:53am
     Views: 1455, Replies: 4
Last Activity by: Black Shark 
    5/13/21 6:30am Go directly to most recent post

VIDEO: 1990-1993 Blend Door Actuator and Heater Core Removal
    by Superc63 4/2/21 11:17am
     Views: 5955, Replies: 3
Last Activity by: Superc63 
    5/4/21 3:14am Go directly to most recent post

1990 C4 Z51 6sp - 3 Row Radiator
    by grantar2 4/7/21 1:21pm
     Views: 1528, Replies: 3
Last Activity by: DanC4-90 
    4/21/21 8:50am Go directly to most recent post

86 pacecar A/C not working.
    by skeech86 7/8/20 5:24am
     Views: 1980, Replies: 4
Last Activity by: skeech86 
    7/12/20 6:01am Go directly to most recent post

Climate Controle Module Issue
    by TomLathen 5/19/20 5:25pm
     Views: 2139, Replies: 2
Last Activity by: Corveddie 
    6/2/20 10:16am Go directly to most recent post

help with fan speed electronic controller
    by Aussie Tony 10/22/19 10:40pm
     Views: 1853, Replies: 1
Last Activity by: Dave91TM 
    10/29/19 2:24pm Go directly to most recent post

Temp Gauge not Working.
    by Tsmooth68 8/27/19 6:49pm
     Views: 4033, Replies: 4
Last Activity by: Tsmooth68 
    8/28/19 4:22pm Go directly to most recent post

Cooling System
    by Macho 007 1/5/19 3:45pm
     Views: 2694, Replies: 2
Last Activity by: ratfink18 
    6/14/19 10:27am Go directly to most recent post

Manual Switch for Secondary Fan
    by aldocar 4/9/19 5:58am
     Views: 1496, Replies: 0
Last Activity by: aldocar
    4/9/19 5:58am 

climate control
    by epohdivad 7/25/13 1:29pm
     Views: 12448, Replies: 8
Last Activity by: Hot Rod Roy 
    3/6/19 7:36pm Go directly to most recent post

heater core
    by legsdiamond 1/9/19 8:09am
     Views: 4045, Replies: 7
Last Activity by: Black Shark 
    2/24/19 9:47am Go directly to most recent post

Old-New to me vette-cooling fan (can't figure out)
    by BigDogYoop 8/8/18 12:49pm
     Views: 3293, Replies: 1
Last Activity by: Hot Rod Roy 
    8/10/18 9:32pm Go directly to most recent post

my 1990 runs above 230 degrees
    by BillyDee 8/20/12 8:35pm
     Views: 29447, Replies: 34
Last Activity by: Willy 
    8/7/18 10:52am Go directly to most recent post

1990 AC problems from Ottawa Canada
    by Willy 7/17/18 7:03am
     Views: 2453, Replies: 1
Last Activity by: Willy 
    8/7/18 10:50am Go directly to most recent post

Blower motor only works on high, also no A/c
    by bluenoser13 7/25/18 8:39am
     Views: 2445, Replies: 1
Last Activity by: Black Shark 
    7/26/18 4:02am Go directly to most recent post

96 hvac
    by paulaann 7/14/18 11:04pm
     Views: 1631, Replies: 0
Last Activity by: paulaann
    7/14/18 11:04pm 

Primary Fan Runs all the time
    by aldocar 5/27/18 10:19am
     Views: 3189, Replies: 6
Last Activity by: aldocar 
    6/13/18 6:10am Go directly to most recent post

auto control on 96 c4
    by paulaann 5/18/18 11:17am
     Views: 2745, Replies: 2
Last Activity by: ratfink18 
    6/8/18 6:08am Go directly to most recent post