Mechanics

FORD EXPLORER VACUUM LEAK PROBLEM

1999 Ford Explorer • 200 miles

Car starts up ok, but when placed in gear very rough idle likes wants to stall, checked all sparks plugs all ok, checked all injectors and cleaned the off vehicle, all ok, no apparent vacuum leaks, , compression is 120 across all cylinders, , its a 4.0 V6, any ideas, thanks.
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Pearlhickory
October 19, 2012.



Clean throttle plate with choke cleaner on both sides, check for vacuum leaks or bad hosses/grommets on v covers and check fuel pressure.

Hmac300
Oct 19, 2012.
I would scan it for any stored trouble codes before getting too deep into anything.

Wrenchtech
Oct 19, 2012.