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Need to jiggle shifter to start - microswitch? 850 1994

posted by jkordzi on Sun Dec 30 12:22 CST 2001
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last visit: Wed Sep 12 02:43 CST 2001

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I've noticed that on occasion (seems to be when the weather is cold) I need to jiggle the shifter handle (automatic) a bit while it is in park in order to get the car to turn over. Is this the shift microswitch, or could it be the shift solenoid? Thanks.

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Need to jiggle shifter to start - microswitch? 850 1994

posted by bay13 on Sun Dec 30 13:25 CST 2001
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Sounds like a PNP switch problem. The link below has a write up on the PNP switch and how to replace it.

http://www.volvospeed.com/bay13.htm
--
Rich K.

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Is 223 on A1 confirmation that the PNP is bad? 850 1994

posted by jkordzi on Mon Dec 31 13:57 CST 2001
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Thanks Rich. I did get code 223 on A1 (throttle position signal too low). Is this confirmation that the PNP is bad? Thanks.

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Is 223 on A1 confirmation that the PNP is bad? 850 1994

posted by Mrsha on Tue Jan 1 04:59 CST 2002
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PNP is bad yes..... but you can reset the code and sometime the PNP switch without replacing it could run for long time... Like Rick said it happend when thing get cold..

My happend 6 week ago car was run in limp mode very slow...
I buy a new PNP switch but never get around to replace it......
car run fine now no problem what so ever.....

So resest the code and see if your problem go away if did let it go..

if it come back than fix it..

Happy new year

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Is 223 on A1 confirmation that the PNP is bad? 850 1994

posted by bay13 on Mon Dec 31 14:43 CST 2001
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That code is set in the transmission because the trans uses throttle position to determine system pressures and shift points. The trans gets the information from the engine computer. The Throttle Position Sensor TPS, is suppose to have a voltage from .5 to 4.2 volts, if the signal drops below .1 volts for 10 seconds then that code gets set. You could have a bad connection on the TPS or a bad TPS sensor. Your not starting unless you jiggle the shifter is normally caused by the PNP switch not registering that it is in Park or Neutral, normally caused by worn out contacts/springs inside the PNP switch. Sometimes ratcheting the shifter back and forth can help to clean up the contacts for a while, but the switch will have to be replaced in time. (it's worn out) and cold weather really brings out the failures.
--
Rich K.

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