no heat out of the vent?
not sure where to put this, but i've got a 1973 merc marquis. air doesn't blow out of the front vents no matter what the control lever is selecting. clear across the selector the heat acts as if it is on defrost, and never changes until its in off position. defrost, hi-lo, vent, heat, all blow out the top window vents. hi, med, lo, switch works, the floor vents blow, but nothing out of the front vents. does this sound electrical, or vacuum related to you guys?
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1987 Camaro SC
ZZ4 350
New Comp Roller Cam .510/525
Speed Demon 4 bbl
Rebuilt 700 R4 (heavy duty clutch bands, TransGo shift kit, etc.)
2,500 RPM precision industries converter
SLP headers, 3.5 inch exhaust all the way to the Dynomax muffler
3.73 richmond ring and pinion 7.5 inch 10-bolt
Hoosier slicks
Stock ZZ4 ran me a 12.8 @106 MPH
soon to find out with new cam....
1973 Mercury Marquise
Split-Pea-Soup-Green, white vinyl top
429 Thunder Jet
True Duals, 2 1/2 cherry bombs
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