Re: Solution to A/C switching vents on its own under engine load.
Hi Corney, welcome to the forum!
The front HVAC is controlled via vacuum. The rear system is all electrical so your problem lies somewhere else; the Rear Electronics Module controls all of it's functions.
Oscar.
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1995 Lincoln Town Car 4.6 Signature
1997 Pontiac Grand Prix GT 3.8
2000 Ford Windstar SE 3.8
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