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Unread 11-20-2006   #1 (permalink)
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Exclamation Help! Car Won't Heat Up?

I don't think my temp gauge is stuck, and if not my car won't heat up. Even after driving it several hours and when I turn on the heater, the air blowing out is very cold. I've flushed the radiator and made sure it was full and the usual stuff. I'm about to check the thermostat and make sure it is not stuck open. Could that be it? If not, what else?
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Unread 11-21-2006   #2 (permalink)
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That's gotta be it. Or it might gave a 160 t'stat in it. Get a new one, and don't get anything lower than 180. I'd recommend 192.
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Unread 11-21-2006   #3 (permalink)
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you might not have a have a thermostat in it or its broke
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Unread 11-21-2006   #4 (permalink)
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mine is kind of like that barely a luke warm heat but temp guage comes up like normal a little more with a/c and or headlights on, it used to get hotter, no leaks no overheating my shoes get hotter from the radiant heat from the headers lol. dont really need the heater for me just the defrost on the windshield when the wipers cant get it.
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Unread 11-21-2006   #5 (permalink)
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I've been having the same problem with my 3.3L since the day I bought it. I
replaced the thermostat with a 180 degree. I replaced my heater core, I flushed
my cooling system twice. The temp guage works mint. It only goes near "normal" when I feel a little heat. I discovered If i clamp off my lower rad hose It will slowly
heat up. I have determined it to be my water pump????? I am changing it this weekend. It BETTER work!!
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Unread 11-21-2006   #6 (permalink)
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Let me know how it goes and if it fixes the problem.
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Unread 11-21-2006   #7 (permalink)
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My vote is on the thermostat being stuck open. Just be happy it stuck open and not closed:hihi:
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Unread 11-21-2006   #8 (permalink)
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Quote:
Originally Posted by Kyle F
My vote is on the thermostat being stuck open. Just be happy it stuck open and not closed:hihi:
But I changed mine twice with no results. Thermostat was obviously my first guess. If the water pump doesn't fix it, I'm putting in a 212 degree thermostat.
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Unread 11-21-2006   #9 (permalink)
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I got a 195 t'stat, we'll see how it goes.
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Unread 11-23-2006   #10 (permalink)
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I looked at it last night and it's gonna be tough. There is a 90 degree hose there thats tough to get off. After that, I can't fit a socket on the bolt and I'd be lucky to get 1/16 of a turn with a wrench. What's the best way to get it off?
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Unread 11-23-2006   #11 (permalink)
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It's not as hard as it looks. I've done it about four times (for different reasons, not that your problem is all that common) and I also have an '89 LX... though the engine is what matters. Just unbolt the t-stat housing... you can even get a socket and a short extension or use a wrench. I've done it. Make sure you losen the clamps on the bypass hose and just pull the housing off. No need to worry about the gasket since you are going to replace it anyway. Now you can just carefully twist the housing to get it off of the hose. There you have it! The tricky part is putting the hose back on the t-stat housing and bolting the housing back on to the intake. Just be patient.
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Unread 11-25-2006   #12 (permalink)
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Replaced water pump and installed 192* t-stat. Didn't fix it. Found out one of my
heater core hoses was plugged! Now I have HOT heat!
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Unread 11-26-2006   #13 (permalink)
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Quote:
Originally Posted by spy23714
I looked at it last night and it's gonna be tough. There is a 90 degree hose there thats tough to get off. After that, I can't fit a socket on the bolt and I'd be lucky to get 1/16 of a turn with a wrench. What's the best way to get it off?
I use a wrench on that lower bolt, a ratcheting wrench comes in handy. I usually just get it loose enough, to where I can back it out with my fingers. Try oiling the 90 bypass hose, when you go to reinstall it.
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