December 17, 200718 yr as i said in the title the front defroster and floor vents wont work, i can hit all the buttons bilevel heat a/c and defroster and it just stays the same its hard to drive because the window fogs up and its a 1987 gl wagon so if anybody knows what it is it would be a lot of help:-\
December 17, 200718 yr sounds like a vacuum line under the hood came loose. Look for one to go from the intake manifold to the white canister thing behind the passenger strut. -Dave
December 17, 200718 yr If you open the hood, over by the base of the windshield on the passenger side you will see a milky white plastic container. This is the vacuum storage bottle. There will be a rubber hose running from this through the firewall, and another rubber hose running down to the intake manifold on the engine. Make sure both of these hoses are hooked up, and that they don't have cracks. Listen for a hissing noise while the engine is running in this area. The vents use vacuum to move the doors inside the ductwork, so if there isn't any vacuum reaching the controls, the air will only blow out of the dash vents.
December 17, 200718 yr Author yup that was it i looked under the hood and one of the little tubs had come off so thanks guyss:banana:
December 17, 200718 yr I was going to say the same thing ( sitting at dealer waiting for oil change ..check up and aux port install and playing on thier puter). Arent the easy fixes great!
December 17, 200718 yr Ben..you could have a cracked vac line??Is it just not blowing strong? Or just poor heat..if its poor heat back flush the core
December 17, 200718 yr lIt doesnt seem to be blowing very hot. Its still hot but not like hot. The front window defrost is slooooooowwwww. i get more heat out of one vent then i do another. Its cold here with ice and snow not the right time to dig into it. ben
December 18, 200718 yr lIt doesnt seem to be blowing very hot. Its still hot but not like hot. The front window defrost is slooooooowwwww. i get more heat out of one vent then i do another. Its cold here with ice and snow not the right time to dig into it. ben Sounds like a clogged heater core :-\ I just helped a friend replace his last week. PITA. You can try flushing it with a garden hose, then putting the hoses back on reverse of what they were. It might help, might not, but can't hurt. -Dave
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