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2002 Chevrolet Cavalier. Trac off light comes on and off and sometimes engine light comes on and it hard shifts as I go up in speed. I had it checked out and they found nothing wrong with the car and cleared the memory then it started again. When I shut the car off and restart it acts fins.

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2002 Chevrolet Cavalier. Trac off light comes on and off and sometimes engine light comes on and it hard shifts as I go up in speed. I had it checked out and they found nothing wrong with the car and...


The issue could be something as simple as a wheel speed sensor not registering. The computer should have a code stored to tell you what the issue is. The reason it works fine when you first start the engine is the ABS and Traction system do a self check each time the engine is started. As long as everything passes it gives the green light and the system is active. When the system detects an error after you start moving it gets disabled and this effects other systems. You need to find and repair the error and all should be good.

Feb 13, 2018 | 2003 Chevrolet Cavalier

1 Answer

I have a 02 Cavalier that when your driving the Trac off light comes on when the light is on it runs rough and shifts hard but if i put it in park turn it off and restart it it's fine


There is a malfunction in you antilock brake/traction control system. When the TRAC light is on, the computer is trying to tell you either 1. That the traction control is active and is controlling your brakes, engine and transmission to stop a wheel skid, or 2. There is is a malfunction in your traction control system.

In the first case above, the TRAC light will only be on for a few seconds until the conditions causing your wheels to slip no longer exist. If the light is staying on even though there is no way your wheels are slipping or skidding, then this is a malfunction. You must scan both your Powertrain Control Module (PCM) and your Antilock Brake System (ABS) module to properly diagnose a problem with this system.

Jul 16, 2011 | 2002 Chevrolet Cavalier Coupe

1 Answer

I have a 2001 chevy cavalier the trac off light comes and when it does the transmissons does not want to shift when it does it shifts hard when i'am driving it the car wants to lunge( just like it was a...


It is not anything with the transmission itself. it is your throttle position sensor, sometimes after driving at a steady speed and then coasting it loses its mind a little. You get the trac light and then it wont shift properly unless you shut the car off and restart it then everything is ok because the computer resets. It is fairly easy to replace.

Mar 19, 2011 | 2001 Chevrolet Cavalier

1 Answer

My 2005 chevy cavalier has a service engine, abs, and trac off light on. sometimes the low trac light comes on when in the reverse position, then switches to the 3 lights when put in the drive position....


The ABS and traction off lights usually indicate a bad wheel speed sensor. I can't remember if the service light came on the three times mine went. The most common one to fail is the left front.

Try this cheap fix first.

Remove the left front wheel speed sensor, clean and reinstall it. They are magnetic and some times road debris will block the sensor. If that was the problem the ABS and traction lights will go off when you start the car.

Your second option is to have the shop scan the vehicle trouble codes, usually this costs an hours labor.

Hope this helps

Nov 07, 2010 | 2005 Chevrolet Cavalier

2 Answers

2001 chevy cavalier trac light


Might have a front wheel bearing going out take it to a shop they can hook up a computer and tell you which bearing it is

Feb 03, 2009 | 2001 Chevrolet Cavalier

1 Answer

2002 chevrolet cavalier w/ ectotech engine


Have someone check the trouble codes in the computer and go from there.

Feb 01, 2009 | 2002 Chevrolet Cavalier Coupe

1 Answer

Trac off light


Replace the TPS (Throttle Position Sensor). $30 to $40 if you do it yourself or $70 to $95 if you have a service station do it. This will fix all of your problems related to the TRAC OFF light and transmission shifting into low gear.

Oct 28, 2008 | 2001 Chevrolet Cavalier

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