delhi

I notice that during stop and go traffic when the car is in gear (1st), the car exhibits some sort of herky-jerky motion. I had to press the clutch to eliminate that... or go into neutral.
Could it be the motor mount? It's an 06 GT.

mysql101

can also be coils going out

delhi

Why? If it's the coils shouldn't that be for all speeds?

heyarnold69

iTrader: (1)

hrmmmm is your car running rich? exhaust smell of gas?

delhi

Nope. Atleast not that I know off. I generally try to avoid sniffing the pipes while stuck on traffic.

Bastage

iTrader: (1)

If what you're describing is what I think it is, you're probably just not steady enough with the accelerator. It took me a few months to get used to driving at very slow speeds without partially riding the clutch (to avoid the "herky-jerky motion").

delhi

But I am not even on the accelerator. 1st gear coasting <10kph. If I tap on the accelerator it may jump and hit the car in front.

Rems31

are you just lugging the engine?

delhi

Do you know what lugging engine means?

mysql101

yeah, if you're not on the throttle then it isn't the coils.

At really low rpms the car can get bouncy back and forth. It sounds normal. Give it a little gas as it does this and you'll find it goes away.

delhi

Well that's what I've been doing. I like to know the cause of it. So it's not engine mount? sure?

Socket7

your 8 is angry about being stuck in traffic and is complaining. It's totally normal. If you're verrry gentle about your throttle you can keep it from happening.

Jasonawojo

iTrader: (2)

Yeah, I've found it can be jerky if you take your foot off the throttle abruptly in 1st or 2nd as the revs fall below 2000. Same if you abruptly apply throttle anywhere near idle in 1st or 2nd. I usually just ignore it (though it makes me wonder what other cars think ) or ride the clutch more.

Jasonawojo

iTrader: (2)

Actually let me add; Any time that I'm slowing down (no gas) with the car in gear (1st, 2nd, and occasionally 3rd), the revs bounce and car jerks back and forth a few times as it gets close to idle. If I know that I'm going to be stopping I usually just push the clutch in and go to neutral to avoid it, but usually I'm just slowing down to match the traffic's speed. I've already had my motor mounts replaced and it still does it so I assume it's normal?

Is this what you're experiencing delhi?

delhi

Nope. There's no rev bounce. And it only occurs in 1st at crawl speeds. But once I get the clutch in or neutral - no herky jerky. My old 2.5RS has this issue as well. I wonder if it is the clutch....

alz0rz

iTrader: (41)

sounds like something that happens to any manual transmission car, ease off the accelerator when you're coming to a stop and slowly ease into it when you are taking off when you are in 1st.