no heater
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Hotshot
Joined: Dec 2005
Posts: 10,253
Likes: 7,687
From: Chino Valley, Arizona
no heater
it's starting to get cold here (40 F) in the mornings, anyhow I have no heat from the heater, once the engine gets to Normal temp my ducts are blowing mabe 50 F, the temp control **** feels tight as it is rotated to hot. worked great last year.
New User
Joined: Oct 2007
Posts: 5
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Depending on the year of your truck you may want to look at the cable where it conects to the on/off valve. It doesnt take much to brake them. there may even be a retaining clip that holds down the cable in place could be off . Just as an fyi.... It is always a good practice to cycle the heater once a month to keep the crud from building up in the heater core.
Senior User
Joined: Aug 2007
Posts: 225
Likes: 1
vacuum lines that drive the valves which control the flow leak- check those.
are the hoses that heat your heater core the same temp? if not, you may be blocked.
also, does your temp control **** feel like it did last year? reason i ask is because stuff can fall through the defrost vents all the way down and block the blend door from operating properly.
check the linkage between the control wire and blend door. maybe it slipped off or broke. if that looks good, the easiest way to figure out if your blend door is blocked (if you have big hands) is to pull the heater core out and look in to the blend door space with an inspection mirror and flashlight. if you have small hands, just reach in there. if the door does not completely seat, you will get cold air mixed with your heat. at 40F, the cold will win.
are the hoses that heat your heater core the same temp? if not, you may be blocked.
also, does your temp control **** feel like it did last year? reason i ask is because stuff can fall through the defrost vents all the way down and block the blend door from operating properly.
check the linkage between the control wire and blend door. maybe it slipped off or broke. if that looks good, the easiest way to figure out if your blend door is blocked (if you have big hands) is to pull the heater core out and look in to the blend door space with an inspection mirror and flashlight. if you have small hands, just reach in there. if the door does not completely seat, you will get cold air mixed with your heat. at 40F, the cold will win.
Thread Starter
|
Hotshot
Joined: Dec 2005
Posts: 10,253
Likes: 7,687
From: Chino Valley, Arizona
Right on Eric as I stated the **** felt hard, finally had a few minutes today pulled the glove box the abs controll and the heater core cover had my wife get her skinny little hands into the duct and found a ballpoint pen. "oops" (mental note clean crap off of dash). anyhow 20 minutes max from start to finish and now a warm truck.
p.s. sent you some love (rep points)
p.s. sent you some love (rep points)
Originally Posted by Eric_F250
vacuum lines that drive the valves which control the flow leak- check those.
are the hoses that heat your heater core the same temp? if not, you may be blocked.
also, does your temp control **** feel like it did last year? reason i ask is because stuff can fall through the defrost vents all the way down and block the blend door from operating properly.
check the linkage between the control wire and blend door. maybe it slipped off or broke. if that looks good, the easiest way to figure out if your blend door is blocked (if you have big hands) is to pull the heater core out and look in to the blend door space with an inspection mirror and flashlight. if you have small hands, just reach in there. if the door does not completely seat, you will get cold air mixed with your heat. at 40F, the cold will win.
are the hoses that heat your heater core the same temp? if not, you may be blocked.
also, does your temp control **** feel like it did last year? reason i ask is because stuff can fall through the defrost vents all the way down and block the blend door from operating properly.
check the linkage between the control wire and blend door. maybe it slipped off or broke. if that looks good, the easiest way to figure out if your blend door is blocked (if you have big hands) is to pull the heater core out and look in to the blend door space with an inspection mirror and flashlight. if you have small hands, just reach in there. if the door does not completely seat, you will get cold air mixed with your heat. at 40F, the cold will win.
