Question about 2002 Chevrolet Cavalier Coupe

1 Answer

Trac off light comes on and car shifts out rough when on what could be wrong

When you turn off engine and restart light goes off and it shifts out smooth again

Posted by Anonymous on

  • Shane Webb
    Shane Webb May 14, 2015

    Mine did that and it was the throttle position sensor

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1 Answer

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  • Chevrolet Master
  • 10,875 Answers

A wheel is spinning and you are reving it

Posted on May 14, 2015

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Posted on Jan 02, 2017

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SOURCE: 2003 Silverado rough idle, idles good after "check engine" light

Check your o2 sensor voltage, those trucks are real bad for o2 sensors, and yes if one sensor is reading 0mv, the others will start to drop out, and the vehicle will run very, rough. You also may check fuel system pressure, should be almost 60p.s.i. If its alot lower, Id be looking into a fuel pump. If that vehicle is drive-by-wire (no throttle cable), the throttle bodies get very dirty and cause that concern also. Id start by having the vehicle scantested.

Posted on Feb 07, 2009

  • 3 Answers

SOURCE: 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.

Posted on Aug 22, 2009

  • 613 Answers

SOURCE: My traction control light comes

sounds like you have a loose sensor on the traction control system i would check all the sensors see if they are properly connected

Posted on Sep 15, 2010

mikewrobe545
  • 1 Answer

SOURCE: 2005 chevy trailblazer 4.2 engine. Was driving on

Sounds like it is the EVAP and I think there is a TSB on this that the dealership should fix for you.

Posted on Jul 10, 2012

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2 Answers

2001 Olds Alero 2.4 idles rough misses acasionally then under torque at 3000 it misses and Trac off light comes on and service engine light flashes


Go to an auto parts store and have them scan for a code. That should give you an indication of what is wrong with it.

Feb 06, 2015 | Cars & Trucks

1 Answer

Trac off light coming on


You have a check light or MIL Lamp on

Nothing new there

Same as any other vehicle issue

Check for codes & diagnose & repair ,in
your case, the ABS braking System & Trac Control

Anytime you have a transmission issue,you stop
using the vehicle immediately,just a few miles to get
home or to a shop is all you got,then the damage starts

Aug 28, 2012 | 2001 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

Have a 2001 pontiac sunfire can be driving down the road trac off light will come on and car will start running rough then die turn car off then back on push ets button then light goes out pull up on...


You have an ABS Braking System Malfunction

Just sillly for a professional to say there is nothing
wrong

Your car is not safe to use at all

Need a different repair shop & make sure they
underdstand all the details of the issue & they
write down what you tell them

I never recommend a dealer, but in your area that
may be an option. Don't take it back until they drive
100 miles with no issues

Jun 23, 2011 | 2001 Pontiac Sunfire

1 Answer

Rough idel,stalling,jumping etc


Have the throttle position sensor checked.

Aug 29, 2009 | 1999 Oldsmobile Alero

2 Answers

Transmission shifts hard when the trac off light comes on


youll need to scan for transmission codes. the trac off light is a default of the trans going into a default safety mode. Bad speed sensors and simple little bolt on items like that can cause the condition but only way to really nail it is with a computer.

Apr 06, 2009 | 1999 Oldsmobile Alero

1 Answer

2000 olds Alero shutting off while driving


Check the 02 sensor and the ignition switc.

Oct 10, 2008 | 2000 Oldsmobile Alero

2 Answers

Track light


speed sensor on your wheel you have one for each side ,the car does a check usually when you first take off.could be the connector to it also when mine went out got the big three =trac off,abs,and service light.a diagnostic should tell you which one is the problem,hope this helps

Sep 09, 2008 | 2003 Pontiac Sunfire

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