When I push on my clutch coming to stop sometimes my tack drops below 500 rpms down to around 300 rpms then jumps back to normal at around 600-700 rpms! It doesn't do it all the time just some times. so my question is there a problem or is it just me being parioned about it! I have 00 F-250 2wd. the only mods I have are a 4" turbo back exhaust, and a ais intake. I took aut my superchip awhile a go so I don't think it is that cause it still does it!

Thanks

 

I forgot to mention I have a 6-speed manual

 

My truck does the same thing if im rolling to a stop in a high gear. Without being there to witness this, I'm pretty sure you are doing the same thing and pushing the clutch in a the last second before you stall. Just before stalling you are pushing the clutch in and the engine assumes normal fuel delivery for idle. Your RPM drop is there due to no fuel then all of a sudden the PCM puts fuel into it to maintain idle. Make sense?

I would only worry about it if it does it when up-shifting through gears when RPM's are high and all of a sudden it it drops below 500rpm.

Or if it gets annoying enough and doing it all the time, your hpop may not be holding its normal capacity and has trouble keeping the proper amount of oil flowing to the injectors to maintain idle when the clutch is disengaged. (doubt this is your problem becuase you havethis happen rarely)

Let me know if this answeres any of your questions. If not, other users and mysef can beging troubleshooting this with you.

 

Forgot to mention that a sluggish slave/master cylinder system can cuase a slow dissengement of the clutch cuasing your truck to almost stall out when nnot delivering any fuel to the engine while stopping. You would also feel the truck continuing to move slightly forward when it does this. Just wanted to throw tha out there too.

 

I just had my clutch replaced a year ago, and when they did it they I ahd them up grade the clutch. I think they put a luk clutch in if I'm not mistaken.