Sorry to ask a redundant question but heres .y problem... 2000 F350, manual hvac with knobs
When i first purchased truck only had defrost in every position, found the 4x4 actuator was at fault, bypassed it and voila everything worked
Summer- went on three hour road trip with a/c on, about 1.5-2 hours in air flow from vents decreases till its only coming out the vents, cab heats up blah blah, get to destination and park for about 10 minutes and notice alot coming from the drain tube, hop in truck everything works so I was like it probably froze off, checked charge was little high so I drained the ac and put new accumulator and orfice tube and recharged. Weather was never overly hot afterwards and I never went on any long drives.
Fall/winter- same situation, drove about an hour to pick up a slip tank i had bought, drove there with the panel vents and floor vents selected blowing heat. Got to the place and picked up the tank. Truck sat idling for half an hour as I BSed with tank seller, when leaving noticed that i no longer had air blowing on me....... coming out the defrost again, didnt change all the way home
So where do I start? Usually if you have a vaccuum leak it'll be there as soon as you turn the key. I'm lost personally.... blend door actuator with bad diaphragm? The blend door controller that sits on top the hvac box under the dash? Control panel? All other vacuum assisted parts work minus the 4x4 as I have it bypassed
When i first purchased truck only had defrost in every position, found the 4x4 actuator was at fault, bypassed it and voila everything worked
Summer- went on three hour road trip with a/c on, about 1.5-2 hours in air flow from vents decreases till its only coming out the vents, cab heats up blah blah, get to destination and park for about 10 minutes and notice alot coming from the drain tube, hop in truck everything works so I was like it probably froze off, checked charge was little high so I drained the ac and put new accumulator and orfice tube and recharged. Weather was never overly hot afterwards and I never went on any long drives.
Fall/winter- same situation, drove about an hour to pick up a slip tank i had bought, drove there with the panel vents and floor vents selected blowing heat. Got to the place and picked up the tank. Truck sat idling for half an hour as I BSed with tank seller, when leaving noticed that i no longer had air blowing on me....... coming out the defrost again, didnt change all the way home
So where do I start? Usually if you have a vaccuum leak it'll be there as soon as you turn the key. I'm lost personally.... blend door actuator with bad diaphragm? The blend door controller that sits on top the hvac box under the dash? Control panel? All other vacuum assisted parts work minus the 4x4 as I have it bypassed
