1999 Ford F150 Problem w/ a/c & heater

1999 FORD F-150
135,000 MILES • 6 CYL • 4WD • MANUAL
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F ADKINS
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  • 1 POST
A/c runs fine, until you hit a bump or motor bogs down.
Then the heat switches on. Sometimes you have the heat on and then you stop & when you restart the motor cool air blows out.
Jul 25, 2010 at 8:03 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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