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Ask Wayne Crawford Your Own Question
Wayne Crawford
Wayne Crawford, Shop Owner
Category: Ford
Satisfied Customers: 3904
Experience:  General Repair Shop Owner
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Ford e 150: i have a 99 ford e 150 van and the air and heat

Customer Question

i have a 99 ford e 150 van and the air and heat just blow out the defrost . it use to blow out the vents unless you step on the gas then it would blow out the defrost and when the r p m s would go back down it would blow back out the vents and now it just blowes out the defrost at hi r p m or low r p m .
Submitted: 1 year ago.
Category: Ford
Expert:  Wayne Crawford replied 1 year ago.
Hello. My name is ***** ***** I will be helping you today. Do you have a vacuum gauge or handheld vacuum pump?
Customer: replied 1 year ago.
no
Expert:  Wayne Crawford replied 1 year ago.
OK. Well it sounds like its probably got a leaking vacuum reservoir but with no way of testing that is just an educated guess.
Customer: replied 1 year ago.
is that the box that is under the pass seat with 3 lines going to it
Customer: replied 1 year ago.
is it bolted to the frame
Expert:  Wayne Crawford replied 1 year ago.
Just a second. Let me double check on that.
Expert:  Wayne Crawford replied 1 year ago.
Its actually in the evaporator core housing.
Expert:  Wayne Crawford replied 1 year ago.
Your best bet would be to reroute the vacuum lines to a new one if you need it. Its a big job to replace.. you would have to pull out the whole dash. Much easier to just find a spot to mount a new one and run the vacuum lines to the new one instead.

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