2001 F 53 heat & A/C cuts out?
The heat & A/C cuts out. I've been told it's the lack of vacuum. I've added an additional vacuum tank, but it doesn't seem to help. Any suggestions on what to do?
Forum Discussion
The vacuum reservoir for the dash Ac is a round ball in the center of the engine compartment (left to right) mounted high in front of the radiator. You may need to stick your head inside and under the hood to see it. There should be a small black and a small blue plastic line going to it. The reservoir should have a 1 way valve on the inlet side to prevent vacuum from bleeding off.
There's also the main vacuum reservoir attached to the frame just below the right headlight. Check the connectors on both reservoirs. They may feel tight but still leak enough to loose vacuum.
We had the same problem on our 2001 F53 chassis. I was able to cure it by putting a film of high vacuum grease on the nipples sticking out of the reservoirs, then reattaching the hoses. If you do this make sure you don't get any grease over the open ports. As the name implies it's meant to withstand high vacuum. You'll have a hard time getting it out of the lines or reservoir if you make a mistake.
Also if your motorhome is stored where any critters can get to it take off the engine cover and check all the lines going to the engine. They like to get in the area and love the salt that gets on the wires and hoses.
There's also the main vacuum reservoir attached to the frame just below the right headlight. Check the connectors on both reservoirs. They may feel tight but still leak enough to loose vacuum.
We had the same problem on our 2001 F53 chassis. I was able to cure it by putting a film of high vacuum grease on the nipples sticking out of the reservoirs, then reattaching the hoses. If you do this make sure you don't get any grease over the open ports. As the name implies it's meant to withstand high vacuum. You'll have a hard time getting it out of the lines or reservoir if you make a mistake.
Also if your motorhome is stored where any critters can get to it take off the engine cover and check all the lines going to the engine. They like to get in the area and love the salt that gets on the wires and hoses.
