ejon101
New Member
- Joined
- May 2, 2019
- Messages
- 5
- Reaction score
- 0
- Points
- 1
- Location
- Batavia, IL
- Vehicle Year
- 1999
- Make / Model
- Ford Ranger 4.0
- Transmission
- Manual
Hey Guys, I've gotta 1999 Ford Ranger 4.0 5spd, 195k mi. When I bought the Truck, it had a really rough idle and occasional misfire under load. I've tried countless things, but still can't manage to figure out wtf is wrong with the thing.
(current) Symptoms are: Misfire under load, extremely rough idle, occasional oil pressure drops (I'm running 5w30 and the gauge just dips sometimes. It's prob just the sender but I'm mentioning it anyways), P0302 & P0305 codes.
What I have done: Head gaskets, Intake Manifold Gaskets, Upper Intake Manifold Gaskets, Exhaust Gaskets, Cat-Back Exhaust, Fuel Filter, Oil&Filter, Air Filter, Spark Plugs, Spark Plug Wires, Distributor, Seafoam (through the throttle, Oil, and Gas), Injector Cleaner (through the gas). I was told to try injectors so I pulled everything out and all injectors are getting proper signal from ECU, and all injectors have uniform resistance.
Before I preformed the Intake Manifold Gasket I had a nasty vacuum leak coming from a snapped intake manifold bolt. That vacuum leak caused Banks 1&2 lean codes, but they haven't returned in the 150mi I have driven since the job.
(current) Symptoms are: Misfire under load, extremely rough idle, occasional oil pressure drops (I'm running 5w30 and the gauge just dips sometimes. It's prob just the sender but I'm mentioning it anyways), P0302 & P0305 codes.
What I have done: Head gaskets, Intake Manifold Gaskets, Upper Intake Manifold Gaskets, Exhaust Gaskets, Cat-Back Exhaust, Fuel Filter, Oil&Filter, Air Filter, Spark Plugs, Spark Plug Wires, Distributor, Seafoam (through the throttle, Oil, and Gas), Injector Cleaner (through the gas). I was told to try injectors so I pulled everything out and all injectors are getting proper signal from ECU, and all injectors have uniform resistance.
Before I preformed the Intake Manifold Gasket I had a nasty vacuum leak coming from a snapped intake manifold bolt. That vacuum leak caused Banks 1&2 lean codes, but they haven't returned in the 150mi I have driven since the job.