Question about 1999 Pontiac Sunfire

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Trac light on shifts hard check engine light on

Trac light on shifts hard check engine light on auto trans

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It sounds like you have a low fluid problem or perhaps worse. Warm car up & check the fluid level when tranny is hot. Add if necessary but do not overfill! Good luck!

Posted on Jul 28, 2010

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Your problum is you IAT (intake air temp) sensor its the sensor thats on your flex tube on your intake look for shorts in the wire im telling you im the owner of one myself and had it happen one to many times hope this helps

Posted on Aug 02, 2010

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Engine light came on and the transmission started shifiting hard. I took it it and had trans serviced.


if you had the trans serviced what was the code from the check engine -----if they didnt give you code go get code most auto stores offer this service for free

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2004 Ford Sportrac having problems with trans OD flashing on and off and sticking in gear?


When the Torque Converter Clutch (TCC) isn't engaging or locks in engagement the light flashes a warning...The TCC solenoid may stick due to dirty transmission fluid...If the Check Engine Light
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1 Answer

I have 3 lights on my dash: Trac Off, Service Engine, Service Vehicle Soon. Has trouble shifting at times unless up a steep hill.


change mechanics . go to a trans shop you can trust , but in all fairness you might want to consider scrapping it

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1 Answer

2004 Chevy Cavalier engine light and trac off light


One year ago---your check engine light came on
The PO405 code was for an EGR Valve issue
No mention--- if you had that fixed

A Few Days Ago---you get Trac Light on,that is part of
the ABS Braking System
Now that system has to be diagnosed & repaired,not just
continue to use the car,actually make the repair, before
you do some damage or can't stop the car & worse things happen

Changing Trans Fluid---is NOT a FIX for anything,but should
be done on all vehicles every 3 years.

If the Engine Management System isn't working correctly,then
your trans won't work as it should either

You need to be proactive & immediately have any abnormal
operation or check light problems, at least diagnosed in a few days
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You need to stop using any car that isn't 100% & have it
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Not wait weeks or years.
Being 9 years old, the trans may also have it's own issues

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1 Answer

Reverse light on on the dash and shifts hard when i put in reverse. Check engine lights on also trac off light is on.


sounds like you have burnt tranny fluid and if the fluid is burnt so is the tranny and it is soon to give up
pull dip stick out of tranny and smell if it smells like burnt toast it means the trans is on it's way to the recyclers

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1 Answer

Trac off light is on shifts hard


i believe theres a small button on your shifter to push for trac off and on, there was on my 98 anyways...

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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.

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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

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TROUBLE SHOOT TRAC OFF LIGHT


ABS light is on & Trac off light is on. Transmission does not seem to be shifting with any problem. What should I look for?

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