Anyone have the problem were their cobalt jerks back and forth when they cruise in first gear? Sometimes when I'm coasting around 5-10 mph the car starts jerking all of a sudden until I hit the brakes and shift into 2nd. Anyone know what this could be?

 

Every manual transmission car I've ever driven does that in first gear.

 

its cuz the tq curve in first is retarded...and first is kinda useless in these cars....if im moving at all im prolly in second, screw first...its only for taking off

 

Its because the torque in first gear is multiplied so much by gear reduction that even the slightest depression of the pedal will lunge the car forward. Every manual trans ever made does this. Automatics don't because they have the ability to slip the clutches and are probably already in 2nd gear. Unless you put it in low gear of course.

 

autos dont slip the clutches...they have torque converters, and yes, we're probably already in 2nd, or 3rd or 4th. With the torque converter, we can be in 4th gear at 10mph and not stall, however, i believe our TCMs put us in either 2nd or 3rd at that speed.

 

maybe its because you use the brake to shift gears instead of the clutch lol

 

Problem solved. Don't cruise in first.

 

Get someone to tune your car and take the torque down in first. It's useless anyways unless you like spinning all the way through first

 

yeah thats what I'm going to do, cuz this **** blows. I never noticed it before cuz I used to coast in 2nd. But since I got tranny mounts I switched to first cuz of the vibs!

 

first is just to put you at high rpms to get going and get into second our first is the suck!

 

How would they tune it to take away torque in first gear without actually changing the first gear ratio? That sounds kind of fishy to me. These computers don't actually know what gear they are in with a manual transmission do they?

 

/thread

 

exactly. you shouldn't be cruising in first.

 

Lol, Who uses first to Cruise? 2nd is where its at! lol

 

if you want to glide in first, push the clutch in a split second before you let off the gas that should help...especially if you are in stop and go traffic... maybe that will help... but once again first sucks lol

 

torque damper is good i dont notice this problem anymore

 

 

happened in all the 5spd's i ever drove too....

 

lol yea theres no reason to cruise in first just throw it in second, problem solved