huntersteve61
Well-Known Member
- Joined
- May 13, 2006
- Messages
- 296
- Reaction score
- 1
- City, State
- Finleyville, Pa
- Year, Model & Trim Level
- 99 XLT 4Dr.
When the truck is off it will only blow on defrost no matter where you put the knob. When the truck is running it will switch properly so long as your not accelerating or climbing hills. Almost anytime your over 2500 or your on the gas air simply stops comming from the vents. This almost says the blend is working but somehow its being diverted when the engine is taking all the vac power? Am I correct here? Where should I begin to look for a problem because with heating or cooling.. Its all foreign. Thanks
