Is this normal for a C5
Thread Starter
Instructor
Joined: Nov 2009
Posts: 168
Likes: 1
From: IL
Is this normal for a C5
This is my first Corvette 97 A4, So I start the car with my foot on the brake and I put it in gear and the car feels like it just wants to take off. when it shifts from 1st to 2nd its not a smooth unnoticeable shift it's more of a slam into 2nd. when I step on it and it downshifts you better hold on. is all of this normal?
Scott
Scott
Le Mans Master
Joined: Sep 2006
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From: Palm Harbor not far from Sebring Florida
St. Jude Donor '11
Oldtimer
I cannot answer it with 100% certainty because I drive a 6 speed, but it sure does not sound correct. The hard shift could be a modified valve body, and the other could be a non-stock torque convertor. Was it advertised as stock?
Racer
Joined: Dec 2005
Posts: 321
Likes: 3
From: bloomington Indiana
I had this on my 99 vert but with no DTC set for P1870.
http://forums.corvetteforum.com/c5-t...hat-to-do.html
I replaced the valve body and everything is ok now for the last 30k miles.
http://forums.corvetteforum.com/c5-t...hat-to-do.html
I replaced the valve body and everything is ok now for the last 30k miles.
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MY A4 does not shift hard into second unless I am WOT. I'd say something has either been modified in your tranny or you have a problem there.
Pro
Joined: Jul 2008
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From: Moyock NC
Drifting
Joined: Feb 2009
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From: MA
If I'm right, starting on 01, there was a revised alternator mount which served to lower the rpm of the motor at idle to solve the "creep" from all the power wanting to propel the car forward.
I also think that there is a huge difference, perhaps going from a sedate SUV/Pickup/Import/anything other than a Corvette to a Corvette in that the instant throttle response, coupled with the massive power on tap, and the A4 transmission.
Depending on throttle/rpm/mph, my shifts can be a bit more abrupt, so much so that my wife notices. It all depends on how fast or what I do with the throttle.
If the car is new to you, I'd do what I did and have every fluid and every maintanable/replaceable item in the car replaced.
Start with transmission fluid and filter along with rear-diff fluid, see if it makes a difference. At least you'll know it is not due to used-fluid.
I also think that there is a huge difference, perhaps going from a sedate SUV/Pickup/Import/anything other than a Corvette to a Corvette in that the instant throttle response, coupled with the massive power on tap, and the A4 transmission.
Depending on throttle/rpm/mph, my shifts can be a bit more abrupt, so much so that my wife notices. It all depends on how fast or what I do with the throttle.
If the car is new to you, I'd do what I did and have every fluid and every maintanable/replaceable item in the car replaced.
Start with transmission fluid and filter along with rear-diff fluid, see if it makes a difference. At least you'll know it is not due to used-fluid.
Safety Car
Joined: Jun 2005
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From: Clark NJ
St. Jude Donor '05 thru '26
Pro
Joined: Apr 2006
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From: Stn Mtn GA
If the trans is 100% stock, it should be smooth
If you have a built 4L60E, it all depends on how it was setup
occasionally mine will want to jump when going into drive and will chirp the tires at half throttle
If you have a built 4L60E, it all depends on how it was setup
occasionally mine will want to jump when going into drive and will chirp the tires at half throttle
Tech Contributor
Joined: Dec 2003
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From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
In D the shifting is very smooth, almost boring. I have to drop it to 2 to get anything like aggressive throttle performance. There is a noticeable jerk when you go from P to D though.
Sounds like you have a tuned box
Thread Starter
Instructor
Joined: Nov 2009
Posts: 168
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From: IL
after I got my plates I took it out for a test, I was going around 40 mph and I stepped on it and it took a second but when it down shifted the tires started to spin, the a$$ of the car slid over about two feet, I let off and had to go back home and change my undies.
Scott
Scott
