when i start my car when its cold, like overnight, my car will shudder when i come to a complete stop. as soon as i step on the brake's about 80% to 100% slowing down from about 15-0 mph the rpms will start to fluctuate and the car will shudder. by shudder i mean slight vibration that you can feel in the seat. when i put it into neutral it does it, but it's less noticeable.

when i drive everything is fine until i come to a complete stop again. this happens for about 10-15 minutes even after my car is warmed up. after 10-15 minutes it goes away and doesn't come back until the engine is completely cold again.

i've had my car for about 5 months now. during the summer this happend too but wasn't as bad. i replaced the front motor mount but it didn't fix it so i replaced the spark plugs, but that didn't fix it either.

so i come to you my fellow aziners in search of a possible answer.

 

Clean out your TB and IACV. Run some seafoam or good fuel injector cleaner thru a few tanks of gas.

 

^^^^^^^^^ worked for me...thanks again

 

thanks i'll give that a try and report back if it solved anything

 

i just had this problem start about 30 minutes ago. its cold here as well. my car just bobs in between 1 and 2k on the tach but doesnt shake. i assumed a leak in a vacuum line but there were none that i could find but i did notice a "clicking" sound like a relay every time the car would rev up and down when trying to find this leak.

should i try the same? thanks for the feedback.

 

i fixed my stalling problem by sticking a wire brush into the battery terminals and cleaning it.