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NOT MUCH HEAT IN CANADA


fitefires

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Hey folks. Just joined.

Just bought a 92 sts with 95000 miles. Runs great, looks great.

One problem--not much heat--today it is -10f and the only time i get heat is on full defrost. Cool, semi-warm air blows on the floor and the rear. Thermostat is running at 195f. Any ideas???

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Live in Canada also and the only time I get real good heat is when the car is running at about 103-106C. If it's below these marks then it's semi warm in most cases.

Ken

1994 STS Pearl White 260,000 KM (163,000 miles)

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Live in Canada also and the only time I get real good heat is when the car is running at about 103-106C. If it's below these marks then it's semi warm in most cases.

Ken

Hey Ken, just did some reading. think maybe it is the "T" valve that distributes heat between the floor and windshield because some days its hot, somedays not. I'll look into it... Thanks.

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I'd say you have a plugged heater core. I had the same exact problem with my 90 deville. Put one of those T things that you can hook a garden hose to and back flushed the heater core. Had a bunch of black crap come out and it sure heated after that!

-Dusty-

- 02 Seville STS, white diamond

- 93 Sixty Special, Tan with vinyl top

- 79 Coupe DeVille, Tan with Tan top

- 06 GMC Sierra Z71, Black

- 92 Silverado C1500, black and grey

- 83 Chevy K10 Silverado, Black and Grey

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I agree, flush the heater core. That will help a lot. If you are talking about the T that is in the heater hoses, that his simply an adapter that has an orfice in one leg that must be directed in the correct direction or you won't get good heat, but I doubt that is your problem, unless you had it out.

Flush the core, make sure your thermostat is 195 and good (not stuck open), and make sure the coolant is not low.

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Before you flush the heater core, check the ductwork from the fan housing to the heater core under the hood. The plastic housing can get very brittle and break leaving you with your heat going under the hood area. This is a common problem on older cars. The plastic housing is near to impossible to replace with the engine in the car, leaving you to patch it up anyway you can. If the housing is fine, flush the heater core.

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