From time to time, I have a problem shifting into park on my 2002 Pontaic Grand Prix - GTP. It will shift perfectly many times in a row and then the next time the shifter will not go past reverse. Usually, I can move the shifter back and forth through the gears and it will finally go into park. What's the problem???
Thanks
Re: From time to time, I have a problem shifting into...
Most likely there is a button sticking inside of the shifter. depending on if it is on the column or on the floor. if you can provide more information that would be great
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Hi, you have a malfunctioning brake/park interlock.
When you go to shift out of park, as you know, you have to hit the brake or the shifter won't jump out of Park into Reverse. The interlock device that in this system is probably failing.
you have either a faulty shifter assembly or the ignition shift interlock cable that runs between ignition cylinder and shifter assembly it is very common for the cables that causes this.
The codes mean that the Electronic Pressure Control Solenoid is going bad. The computer detects that the shifts are taking longer than 0.65 seconds. Then the computer commands maximum line pressure to avoid burning out the clutches, hence the hard shifting. My 2002 Grand Prix had the same problem, and I had great luck just installing a shift kit to speed up the shifting and haven't had any further issues.
To fix the high idle, replace the top oxygen sensor. I would drop the transmission pan and change the transmission filter. You can then check the old fluid for contamination and metal filings. Metal filings will clog the transmission filter and lead to low pressure that would cause delayed shifts
The ignition has an interlock that will not let you turn the key all the way to OFF until the transmission is in park. This is done via a sensor either in the transmission itself, or on the shifter.
With the car off, step on the brake and shift from Park to Reverse, then back in to Park. You should hear a faint "click" as the interlock engages. If not, then your sensor (switch) may have failed.
Ahh, yes. As a Grand Prix owner myself, I had the same issue. The device that allows you to release your key is called a Shift Lock Solenoid. This engages/disengages when you press the release button on your shifter. img. ----> http://media.photobucket.com/image/shift%20lock%20solenoid%20grand%20prix/2003bonneville/DSC09480.jpg The most common thing for people to do is to slam your shifter into park. Please don't do that. It won't help, and in most cases cause more problems. To get you by for the time being, you can do one of two things. Carry a small pointy object to manually release it by removing the small round cover under your steering column. Take your object of choice and push it up into that hole and then turn your key back to get it out of the ignition. Or, get it fixed. Another trick when you are unable to get the key out is this, 1. Turn your radio off, and fans etc, so there is no noise. 2. Squeeze your shift release on the console a couple of times; you should hear a click in your column. If nothing happens, turn your key just a touch more towards the on position and continually squeeze the release till you hear the click in your column, then you are able to turn your key back to the lock position and pull out the key. Hope this helps.
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