Fromthedeep55
New Member
- Joined
- Jun 1, 2019
- Messages
- 2
- Reaction score
- 0
- Points
- 1
- Location
- Lousiana
- Vehicle Year
- 2008
- Make / Model
- Ford Ranger XL
- Transmission
- Manual
I have a 2008 Ranger XL with the 2.3 L four cylinder engine and 5 speed manual transmission. I just upgraded my air filter for a K&N and cleaned my MAF sensor, throttle body, and IAC valve at the same time. Once I got everything back together and took it for a drive everything seemed good, no check engine light showing, but when I coast to a stop in neutral the engine stays at 2000 RPMs until the truck is at a complete stop and then drops off to around 750 RPMs which is about what it normally is. It idles smoothly at a stop, but the high idle while driving is killing my fuel economy.
After doing some other research trying to correct the problem I've tried replacing the IAC valve, the MAF sensor, cleaning the contacts in all of the electrical connectors with contact cleaner, resetting the PCM by disconnecting the negative battery terminal for 20 minutes a couple of times, and testing the TPS with a multi-meter which sweeps smoothly from 1 volt fully closed to 4 volts fully open.
Any help on where to go from here would be greatly appreciated.
After doing some other research trying to correct the problem I've tried replacing the IAC valve, the MAF sensor, cleaning the contacts in all of the electrical connectors with contact cleaner, resetting the PCM by disconnecting the negative battery terminal for 20 minutes a couple of times, and testing the TPS with a multi-meter which sweeps smoothly from 1 volt fully closed to 4 volts fully open.
Any help on where to go from here would be greatly appreciated.