arbeitm

Yesterday I noticed that my rpms aren't really dropping during shifting when I press the clutch. It's not until I release the clutch in gear that the revs drop. Furthermore in 1st to 2nd and 2nd to 3rd I think I kind of notice the RPM's jump up a bit when the clutch is disengaged.

I'm 99% sure that it didn't do this before (there's alway that 1% where you say to yourself "did I just not notice this before?").

If I'm at a stand still and I blip the throttle, it seems to hang a bit in the 2,500 rpm range before it drops.

Thanks for any help.

Ed Hughes

When you say this, do you mean you see/hear the actual engine behavior, or is it just the tach needle you see doing this?

If the engine is indeed behaving thusly, you've got something screwy. The easiest to check is a stuck throttle linkage or throttle.

Amber Gramps

You aren't going to an autocross event in the morning are you?

Ed Hughes

arbeitm

It's both engine and tach.

Actually, I do have one one Saturday!

Ed Hughes

You've got an unsafe car to take to the track. Something is sticking. Look at all of the obvious stuff from your gas pedal back. Hopefully you'll find something obvious like a weak throttle return spring, sticky linkage, etc.

I've seen bad advice posted on this subject before, but do not accept anyone stating it is "ok" to track like this. It isn't. If you do, you not only endanger yourself, but more importantly, others and their cars.

Amber Gramps

Matt, please forgive us. If we didn't do this here we'd have a masive drinking problem. that was a bad inside joke and I hope you will forgive me. It's time to check every single little thing that it could be. No joke. I have a 3.2 so I'm not much help, but I'd be under, over, around, and next to anything that moves related to fuel delivery from pedal on....

Brads911sc

HAHA Doug Good one.

arbeitm

No problem. I didn't really get it until Ed explained it. Then I figured it was an inside joke.

I don't think I'm doing a good job explaining it. It doesn't seem to be a throttle issue. I'll check out the cables, etc. But I'm leaning more towards a cis issue (like the decel valve). It seems like it is related to my idle issue and cold start issue.

jakeflyer

I think i would have the car parked and see if it will stick at higher rpm. With the engine running see if the throttle rocker arm on the driver side of the air box(has the throttle wire attached that runs to the front of the car) is home on the stop. If when you push it to to the stop and there is no drop in rpm, then is the stop nut on that screw tight or did it loosen up and the screw has adjusted itself in.
From there I wuld go to the front and see if the gas pedel is not returning home completely and the wire is clear. From there it is under the car and see if there is anything obvious.