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1999 3.0 Flex Engine // Issues


Joined
Sep 30, 2025
Messages
1
Points
1
City
Cumberland Furnace
State - Country
TN - USA
Vehicle Year
1999
Vehicle
Ford Ranger
Drive
4WD
Engine
3.0 V6
Transmission
Automatic
Just picked up a 99 w 145K, body needs minor work. I see it says misfire in cylinder 6. Compression test showed 152PSI. Lacks power on acceleration & I noticed that when driving fast and/or under load Air vents go to defrost. taking load off goes back to vent. Sounds like a vaccum leak, but checked all the usual suspects. Any thoughts or suggestions? New plugs new wires. Also suspect Injector possibly, but I really didn’t want to have to yank off the intake.
 

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