What is your question?
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What is your question?
Air flow will switch from cabin to defrost and back to cabin as I have to apply gapedal while driving and taking off, might it be a vacuum deal. A mechanic said something about bad diaphragms, upwards of 4 of them,2001 Mazda B2300.And during winter I have to keep switching vent selector back and forth while cutting fan off and on ,while driving or parked, to get the heat to kick on from cold air, hope this makes since, it's confusing to me and I have to deal with it all the time.
What makes this problem better or worse?
Applying gas pedal when driving, taking off
How long has your 2001 Mazda B2300 had this problem?
5 yrs.
Vacuum leak under hood is suspected .. Small plastic tubing near passenger side firewall.
I have already replaced vac. connect. & hoses, maybe there's more lines to look at beyond passenger side? Anyone ever heard of diaphragms as part of system? Sounds wierd to me , but IDK.