A/C problem vacuum leak, help finding please.
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A/C problem vacuum leak, help finding please.
Vehicle: 2004 Expedition, small V8 (can't remember size, 4.9L maybe).
Problem: When A/C is on it will blow to defrost when RPM +1k, then will switch back to blowing normal when under 1k RPM.
Reason: Leak in my vacuum lines somewhere (or so I've read).
Questions:
#1) Which lines are my vacuum lines? Pics or web links much appreciated.
#2) Where would this leak most likely happen? Joint? middle of hose?
I am by no means a mechanic, but I am comfortable changing all fluids, alternator, brakes, etc, minor stuff. So you'll have to pardon my ignorance as to which lines to examine.
Thanks for any help.
Problem: When A/C is on it will blow to defrost when RPM +1k, then will switch back to blowing normal when under 1k RPM.
Reason: Leak in my vacuum lines somewhere (or so I've read).
Questions:
#1) Which lines are my vacuum lines? Pics or web links much appreciated.
#2) Where would this leak most likely happen? Joint? middle of hose?
I am by no means a mechanic, but I am comfortable changing all fluids, alternator, brakes, etc, minor stuff. So you'll have to pardon my ignorance as to which lines to examine.
Thanks for any help.
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