MAF or TPS?

[seh6183]

Mass Air Flow Meter or Throttle Position Sensor

1996 4.0 5 speed 4 wheel drive

Just started recently. Don't know if its been throwing a code since the lights been on since I bought it. Also can't pull the codes right now as my scanner is not with me.


What it does: Be driving and truck bucks real hard and won't allow anything over 5% throttle. Push in the clutch and it dies. If I turn the truck off and start it back up, something resets and the problems goes away. Happens once every other day.


Have already cleaned the MAF and the set screws for the TPS are solid.


Thoughts?

 

[cammeddrz]

Thoughts?

if you are concerned that it is the tps check the voltage on the output of the tps, check it at idle, and check it at full throttle, it should be a smooth transition of voltage between them

 

[seh6183]

I could check it, but if its only happening periodically then I'm not sure that it will show a voltage problem at the current time that Im checking it.

 

[cammeddrz]

being that a tps is nothing more than a potentiometer i have never seen problems caused by them to be intermittant. they usally start and continue

 

[seh6183]

being that a tps is nothing more than a potentiometer i have never seen problems caused by them to be intermittant. they usally start and continue

So are we ruling TPS out as a possibility?

 

[BlackBII]

So are we ruling TPS out as a possibility?

Once you have tested it's voltage, yes.