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Subaru SVX World Forums > SVX Tech > ---Post up your problems here for some help > My heat sucks

My heat sucks
 Moderated by: wannarace928, shotking, OAB_AU, Mrs.Budfreak, GreenMarineSVX, budfreak  
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richs1000
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 Posted: Nov 19th, 2008 03:24 AM1st Post
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My heat isnt working right. Its cold when at idle, and then while im on the gas it gets hot. i have it turned up to 85 and still no heating right. I check for leaks and nothing is leaking. Please help. this has been an on going issue.



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 Posted: Nov 19th, 2008 03:49 AM2nd Post
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oh yea i also let the air out of the system.



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 Posted: Nov 19th, 2008 04:00 AM3rd Post
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Is it cold when you first start the car? By letting the air out of the system you mean R-134a? Does your temp gauge read a little below half?



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Seth
94' Barcelona Red w/ Black top AWD LS 142k
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Current mods: AWD swap,4.44's,CAI,AR rims,Custom red interior lights,TMA 250watt amp,Blitz in-line driver,Permacool tranny filter,Power mode switch,6k HID lows
richs1000
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 Posted: Nov 19th, 2008 04:05 AM4th Post
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no its after the car has ran a while. no air out of the coolant system by taking the rad cap off. the temp gauge is a little below half all the time but the car is warmed up. the gauge sits right on the edge of the floating water



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 Posted: Nov 19th, 2008 04:08 AM5th Post
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Riches SVX is having a somewhat similar problem to RD which I can not for the life of me figure out. Hopefully someone can help him out as I have no idea what he has going on unless it is a head gasket which is all that is left for it to be on RD really since everything else is replaced.



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 Posted: Nov 19th, 2008 04:10 AM6th Post
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Are you noticing a loss of coolant in you reserve tank? Does any air come out of the floor vents when you turn the heat on?

Last edited on Nov 19th, 2008 04:11 AM by redlightningsvx



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Seth
94' Barcelona Red w/ Black top AWD LS 142k
http://www.cardomain.com/ride/2539320
Current mods: AWD swap,4.44's,CAI,AR rims,Custom red interior lights,TMA 250watt amp,Blitz in-line driver,Permacool tranny filter,Power mode switch,6k HID lows
richs1000
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 Posted: Nov 19th, 2008 04:10 AM7th Post
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yea the tank was bone dry but the rad was full



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 Posted: Nov 19th, 2008 04:12 AM8th Post
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Then you've either got a leak somewhere that it's evaporating so you can't detect it or the worse case which you probably have would be the head gaskets are blown. Do you smell any coolant under the hood with the heat turned on high?

Last edited on Nov 19th, 2008 04:14 AM by redlightningsvx



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Seth
94' Barcelona Red w/ Black top AWD LS 142k
http://www.cardomain.com/ride/2539320
Current mods: AWD swap,4.44's,CAI,AR rims,Custom red interior lights,TMA 250watt amp,Blitz in-line driver,Permacool tranny filter,Power mode switch,6k HID lows
richs1000
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 Posted: Nov 19th, 2008 04:15 AM9th Post
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no smell. theres some crust on one of my hoses but i looked at it and there was no loss of cooant with the car on.



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 Posted: Nov 19th, 2008 04:20 AM10th Post
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Replace that hose and see if it fixes it then. I had a similar problem. I could smell coolant but didn't see any leaks for a YEAR. I only filled my reserve tank maybe twice during that time. Then a couple months ago the top rad hose had a slit in it from rubbing the p/s line and that is where the smell was coming from. New rad hoses are under $15 from dealer so try that and if it still does it then do a pressure test on your radiator.



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Seth
94' Barcelona Red w/ Black top AWD LS 142k
http://www.cardomain.com/ride/2539320
Current mods: AWD swap,4.44's,CAI,AR rims,Custom red interior lights,TMA 250watt amp,Blitz in-line driver,Permacool tranny filter,Power mode switch,6k HID lows
richs1000
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 Posted: Nov 19th, 2008 04:24 AM11th Post
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it doesnt seem to be leaking though. there was a little bit of fluild on the bottom of the water pump. i replaced the lower hose but not the top one. but would that really affect the heat?



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 Posted: Nov 19th, 2008 04:26 AM12th Post
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Well that changes everything. What kind of fluid was it on the pump? If coolant mabye the gasket on the pump or pump its self needs replaced but idk i'm not a mechanic.



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Seth
94' Barcelona Red w/ Black top AWD LS 142k
http://www.cardomain.com/ride/2539320
Current mods: AWD swap,4.44's,CAI,AR rims,Custom red interior lights,TMA 250watt amp,Blitz in-line driver,Permacool tranny filter,Power mode switch,6k HID lows
richs1000
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 Posted: Nov 19th, 2008 04:29 AM13th Post
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jason just replaced the pump and gasket and its sealed also a new thermo. yes it was green so...



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 Posted: Nov 19th, 2008 04:32 AM14th Post
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The gasket could not have seated properly with the pump and motor.I think their is a gasket on the T stat to but i'm unsure if it could be that. That's all I can think of after all the things you described. I wouldn't rule out headgaskets just yet but it seems the problem is around the water pump.:(

Last edited on Nov 19th, 2008 04:34 AM by redlightningsvx



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Seth
94' Barcelona Red w/ Black top AWD LS 142k
http://www.cardomain.com/ride/2539320
Current mods: AWD swap,4.44's,CAI,AR rims,Custom red interior lights,TMA 250watt amp,Blitz in-line driver,Permacool tranny filter,Power mode switch,6k HID lows
richs1000
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 Posted: Nov 19th, 2008 04:36 AM15th Post
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the thermo has a rubber ring around it



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