Forum Discussion

kmb1966's avatar
kmb1966
Explorer
Jul 23, 2018

Dash A/C blows out of defrost when climbing or head wind

My dash a/c blows cold air, but at times when climbing hills/overpasses or traveling in a head wind, the air will decrease out of the vents, and blow out of the defrost vents. Upon slowing down, the ...
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mowermech's avatar
mowermech
Explorer
Sep 03, 2018
keefr wrote:
Anyone remember the old vacuum-operated windshield wipers that stopped going uphill and flapped like crazy coming down?


Yes, and I also remember the "fix" that was done back then: The double diaphragm fuel pump. One diaphragm to pump fuel, and one to create vacuum for the wipers. It didn't completely solve the problem, but it helped.

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