Car Bucking @ low speeds Options

[elvasoshexai]

ok.. the celica is the first manual transmission car i've ever owned and drove for longer than 20minutes...

anyways.. a thread on another forum about someone's car (a corolla) bucking at low speeds/rpms in 2nd gear got me wondering...

my car does the same thing... and i always wondered if it was normal...

when i'm in 2nd gear and at a low speed or low rpm (below 2000) or when i just let go of the pas pedal quickly (like on my auto car), the car bucks 'a bit'...

i know 'a bit' is subjective.. but because ive never driven another manual.. it seems like 'a bit' to me... 100% it bucks more at low speeds (or when i release the gas pedal fast) than my auto cars...

so i was wondering if this was a problem because the other guy said his other manual car (some mazda) was really smooth in 2nd gear

somebody else said it's something to do with ignition coil.. but i dunno...

This post has been edited by elvasoshexai: Jun 16, 2006 - 12:20 AM

[DomGT]

I'm not a car mechanic, but here's my opinion. Just think of the physics of what your doing. Instead of giving your transmission the power of 2k RPM, your QUICKLY giving it the power of idle speed, about 700rpm. Your making is HARDER for the tranny to do its job, so it results in clunking.

If the problem persists, you may need to clean or replace your idle air control valve. When you let off the gas completely, the throttle body does NOT close completely. If it did, you car would turn off (no air going into engine). The idle air control valve, or IACV takes over when you let off the gas and keeps the throttle body open a little bit to keep the car running smoothly.

So from now on, pay attention to pure phsyics, and you'll go EASIER on your baby (car).

Oh one more thing, after driving my VR-4 for several months, I learned that the CAR itself has 1 or 2 ways it likes to be driven. Once you find that out, your golden.

This post has been edited by DomGT: Jun 17, 2006 - 3:02 PM