reving problems

[Trent w]

i have a 1993 ford ranger 4.0 and when i slightly touch the gas pedal it will rev to 2200 rpm and slowing go down

 

[Wicked_Sludge]

thats what the gas pedal does.

 

[Trent w]

no when you barely touch the gas peddle and let go. it will go to 2200 rpm and will wait there for 10 sec then very slowly go down

 

[KELLY88]

Any check engine lights?

 

[Trent w]

no Could it be the MAF

 

[Wicked_Sludge]

check for vacuum leaks (the 4.0 is known for eating intake mani. gaskets). check and clean your IAC solenoid and ports.

most likely not the MAF.

 

[almostclueless]

There's almost no chance it's the MAF.....gas engine RPM is controlled by how much air gets in; the MAF does nothing relative to that but measure the air going in and tell the PCM about it.