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2001 Grand Prix SE 3.1 Hesitation


thorne

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My wife's car has a slight hesitation when she takes off, I drove it this weekend to get some tires put on. I noticed that it was Lagged? I've ran injector cleaner through it and noticed no diffrenace.

 

90000K on the ODO

 

The airfilter has been changed

Oil is fresh

 

idea or help appreicated.

 

She was just asking me if i could make it faster. Other then a engine swap which im not qualified to do ( mustang failure tell me so) I don't know if a CAI / Exhaust would make a diffrence

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I would look at the TPS if it's mostly hesitation from takeoff. TPSs work alot like old post style radio knobs, and just like them when they get old they can get dead spots or "noise" and need replaced. Also, just like radio knobs going bad where they are most used... TPSs tend to have issues with the first part of the travel since it is the part most used. You can hook an analog (dial, not a digital) voltmeter too it and watch it sweep as you open the throttle slowly. If it jumps or hesitates in a certain spot, replace the TPS.

 

Edit: See above - My long winded responses take a long time to post :) .

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