no codes. clutch goes in, RPMS dip below 500 and then back to regular. even when im in neutral rollin to a stop or jus shiftin gears. its had a few rough starts but no big problems. tech at dealership cant figure it out. any suggestions??? pump, lift pump, cam sensor, injectors????

 

Does it seem to be lugging down when you push the clutch in?

Any noise or vibration?

Throw out bearing?

 

Lets figure out if its mechanical or electrical.
After starting the truck, unplug the clutch safety switch, then operate the clutch in and out and see if it still does it.
If it doesn't do it then it is electrical. If it does do it, then its mechanical.
Make sense ?

 

lugs down, replace a u joint that was making my truch shutter but no noise vibration.

Where is the clutch safty switch? makes sense but ive had people tell me its a fuel problem, but ill try what you say.

 

Right above the clutch pedal, looks like the brake light switch.

 

I had one of my friends put the computer on it and nothin came up. its gettin to the point where it wants to cut out and shut off. cant find the switch he doesnt kno either. im gonna take it back to the dealer ship or to one of the shops that do work for them. thanks for the help if you think of anything let me know dont think its the clutch, i can rev it up and the rpms drop the same.