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Pontiac Grand Prix Transmission Pressure Control Solenoid Failure May Cause Erratic Shifting

 
Pontiac Grand Prix Problem
34 Reports
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Model Years Affected: 1997, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008

Average Mileage: 119,706 mi (47,000 mi - 182,456 mi)

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The transmission pressure control solenoid may fail causing erratic shifting. Our technicians tell us that partial dis-assembly of the transmission is necessary to replace a failed pressure control solenoid.

  • Visitor, , 47,000 mi

    2005 Grand Prix started jerking before the gear would engage and now you put it in a gear and push on gas peddle and it won't go anywhere in any gear. If you are on a hill it will drift backwards. If you shut it off and wait a while and restart the car and put in gear it will engage but doesn't have much power. Could that be the transmission going bad!!

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  • Transmission whines and shifts hard after a while of driving

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  • Visitor, , 102,000 mi

    Once the transmission gets warm, it revs engine and shifts hard through 1st, 2nd and 3rd gears. Once a speed of 45mph+ is reached the car is fine. Solution, replacing solenoid and having the valve checked out at as well.

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  • Visitor, , 121,500 mi

    Code 1811 causes hard shifting; only when hot

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  • Visitor, , 125,000 mi

    I'll be driving and it feels like a slip of the tranny, this is very spuratic.

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  • Visitor, , 137,000 mi

    Car shifts hard from 1st, 2nd gear, stops once 40+ mph are reached. Can let the car sit for 2 to 4 hours and it will not shift hard again.

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  •  Rookie

    hard upshifting between 1st & 2nd & 3dr.trbl.code 742 torque conv.clutch circuit stuck on yesterday for 10 miles.mile.Car was bucking like a horse on shifting & felt like slippage.could be 1-2 shift or 2-3 shift solenoid.

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  • Visitor, , 85,000 mi

    500 dollar fix, another common issue with this car.

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  • Visitor, , 104,000 mi

    2000 GP Pontiac,

    Transmissions shop says not worth fixing yet. Would be to costly.Some times hard shift some times smooth.
    I will wait for transmission to go bad & then have them rebuild it.
    Cars been hard shifting since 80,000 miles.

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  • Visitor, , 87,500 mi

    Error code P1811

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