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Dec 13, 2008 | 02:40 PM

rustee90-150

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From: watford, ontario

no heat

ok so in the summer i put a new heater core in the truck and a new water pump. the summer before that i put in a new double core rad. thay were all leaking originals . now its cold out and i have no heat in the truck the engine comes up to opp temp fine within five minutes. the heater core lines are so hot i can barley hold my hand on them the blend door works fine yet even after half hour drive the air coming out still feels cool there is alot of air coming out it blows fine and all my settings work defreost floor ect just no hot air . its a 90 f150 5spd 302 thnxs.

Dec 13, 2008 | 02:55 PM

pc_2000

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From: Lutz, FL

Rustee
I'm having the same problem. I'll be interested to hear a solution to it as well.

Dec 13, 2008 | 03:46 PM

ac700wildcat

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Are your heater hoses on the right connections? I seem to remember that if you put them on the wrong parts of the heater core it won't work or something?

Dec 13, 2008 | 03:58 PM

pc_2000

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From: Lutz, FL

I know I personally check that and reversed them (they were on wrong from PO) no difference.

Dec 13, 2008 | 04:58 PM

Conanski

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From: Ottawa, Ontario

You're gonna have to open up the heater box again, there is a lot of cold air getting in there from somewhere, possibly a foreign object preventing the blend door from completely closing.

Dec 13, 2008 | 08:41 PM

rustee90-150

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From: watford, ontario

i took the cover off the heater core and there was a small gap around all four edges of the heater core so i packed them with foam and tweeked the blend door now i have more heat but still not the same as it use to be im thinking its a low quality core .

Dec 14, 2008 | 02:04 AM

Xclimation

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From: Ft. Worth, Texas

When I replaced my cooling system a few months ago, the heater hoses were completely blocked. When you say you felt the heater lines, do you mean the hoses that go to and from the heater core to the water pump? Even if they are getting hot, they can still be blocked or partially blocked. They are cheap and easy to replace.