RPM question please help!
#1
RPM question please help!
So I just bought a 2009 F150 XLT 2WD. I'll be driving and the engine will jump RPMs on its own and will vibrate. Usually only happens when I go uphill or around a turn. If I put the truck in 3rd shift... it doesn't do this. Not sure what it could be. CEL is on and throwing P0442 code (Evap) I do not have a gas cap. Feels like it's misfiring but it's not throwing any codes for it. Please help! Thank you and have a great day!
#3
Right. But the truck doesn't downshift and it vibrates the whole truck. Like it needs to downshift, but it can't.
You really think I would be posting this if it wasn't a problem? This isn't my first rodeo.
You really think I would be posting this if it wasn't a problem? This isn't my first rodeo.
#4
Hi, when was the last time that you had your trans serviced. Waiting too long can cause the torque converter to shudder. I don't do rodeos, we are just trying to help you with what information that you posted.
#5
Senior Member
You can still get this evap code 0442 with no cap. Check the filler neck.
http://repairpal.com/OBD-II-Code-P0442
http://repairpal.com/OBD-II-Code-P0442
#6
Senior Member
Originally Posted by Copenchris
Right. But the truck doesn't downshift and it vibrates the whole truck. Like it needs to downshift, but it can't.
You really think I would be posting this if it wasn't a problem? This isn't my first rodeo.
You really think I would be posting this if it wasn't a problem? This isn't my first rodeo.
BTW, may want to lighten up a bit, esp when folks are only trying to help.