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#1
10-29-2008, 07:33 PM
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lost my hvac level control 97 3.8
I just recently lost my hvac level controls. I have been down this road before but i must have a different problem this time. I have good vacuum lines all the way down to the control. I had a break in a vacuum line last year. I have checked the vacuum line that runs down through the firewall to the control. It holds a vacuum and when the engine is running its creating one. The fuse is also good. The control will still switch to the defrost so that why i now think its a servo (if thats what its called) at the point where it switches from floor to face.
Thanks 
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#2
10-29-2008, 08:06 PM
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Re: lost my hvac level control 97 3.8
Would this be an auto climate control-as in digital readout to set temperature??? If so the vacuum port may have deteriated where it enters the HVAC programmer- losing vacuum there- I have seen 3 or 4 this year do that......
__________________
Automotive A/C Engineer with: '99 IH 4700 Toy Hauler (2) '95 GEO Prizms both maroon '99 GMC Yukon '95 Chev 3500, 454 Dually Crew Cab- 145k miles- Wife's Camel trailer puller. '94 Astro- 370k miles '94 Firebird Formula- 5.7L 180k miles- gone- '92 Chevy Lumina Van 3.8L 264k '86 GMC S-15 - 2.8L 154k '87 Buick Park Ave . 187k '86 Buick Park Ave 3.8L 199k miles- gone '77 Chevy Vega- 2.5L 175k miles gone but not forgotten '68 Camaro 396 4 spd RS/SS -72k miles-
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#3
10-29-2008, 08:36 PM
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Re: lost my hvac level control 97 3.8
No,
Sorry not enough info, No digital, Circle control
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