Heater control leak?
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Heater control leak?
I'm currently hunting vacuum leaks on my recently acquired F150. (bad gas mileage and I'm getting lean codes on both sides) Under the hood is simple enough, but I just noticed my heater function control sounds like it has a leak, mostly when in the OFF position. Is a constant hissing from the control area normal or is this another leak?
Stock 1996 F150 XL, Extra Cab, 5.0L, E40D auto, 4x4, Dual-tanks, A/C
Stock 1996 F150 XL, Extra Cab, 5.0L, E40D auto, 4x4, Dual-tanks, A/C
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Galm_2
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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Sep 3, 2011 07:11 PM
