Mechanics

DECELERATION VAC. SWITCH

1991 Ford Ranger • 4 cylinder 2WD Manual • 497,896 miles

I recently had a check engine light. When I connected to my code scanner I received a DTC52 which is power steering pressure switch circuit open. I do not have power steering. There was also a DTC12. It initially read that the deceleration vacuum switch was open constantly. Where is the switch located so I can replace it. Thx.
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Ronson
April 24, 2011.




What code 12 means is unable to control RPM during test likely cause Idle air by-paas see diagram


Docfixit
Apr 24, 2011.
Thanks for the info. I have another and will change out. Will check for power first.
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Tiny
Ronson
Apr 24, 2011.

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