Why does fan air move dring excelleration?

Asked by Guru6YGDR Mar 13, 2020 at 07:24 PM about the 1997 Dodge RAM 1500 LT 4WD

Question type: Maintenance & Repair

The air from the fan moves from frontal
vents to defrost vents during excelleration
eith air conditioner on . Also no air from
frontal vents when in lower vents and
frontal vent settingb

3 Answers

F_O_R answered 4 years ago

You must have vacuum operated blend doors. There is probably a vacuum leak somewhere, possibly at the vacuum reservoir.

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Guru6YGDR answered 4 years ago

Ok l just had a total resoration done body interior , it had the problem prior so l will pursue where they didnt do. Everything under the hood was replaced . If the vacuume canister is in the fender l know they never was there. I ' m having an issue like irs running to rich and occasional back fire and hesistation spoke with the mechanic today he thought was a vacumme issue also so this is sll making sense.

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F_O_R answered 4 years ago

A vacuum leak would make it run lean but it can cause running issues if it is large enough.

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Your Answer:

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