Expert: Skip Bollinger - 7/22/2007

Question
I 1994 Cutlass v6 3.1 automatic transmission with 160K miles. Ssometimes when I started the car and put gear in drive, it doesn't move no matter which gear (R, D, D2, D1). I will trun off ignition and restart, put in gear and then it will go. Once it's moving, usually it will keep on going without any problem. At times (especially just start running the car) when I slow and stopping for stop sign, when start to go again, it feels like there's a lag (almost thinking is not going to go) before it will get going.
I'm not certain it's the transmission problem. Can it be vacuum leak, PVC filter or something else. I searched on te internet and found post about getting the diagnostic code from the ALDL connector. For some unknown reason, I can't find the specific OBD code for 1994 Olds ... it's just no where ot be found. Others mentioned it's the same as chevy etc and get the code by shorting terminal A & B with a paper clip. When I did that, the lights didn't flash like it's supposed to. Any thoughts on what my problem would be? Does it help if I try to locate the OBD code?

Answer
Steven,
  I'm so sorry to take so long to get back with you but I AM NOT SMARTER THAN A 5th GRADER AND I AM NOT QUALIFIED TO ANSWER YOUR QUESTION.
  I asked 4 of my Tech customers and only one offered a response. She said she would look at the connection at the Neutral Safety Switch. She explained that if the NSS was not making a good connection, the transaxle thinks it is in Park, hence the vehicle not moving. She went on to say that an intermittent connection will allow the vehicle to move but once it begins to stop or stop, the connection could be compromised and the problem arises again. She indicated that vibration could help make/break the connection.
  As far as an OBD code, it will tell you that you have a problem with a certain circuit but it cannot pinpoint the problem. If what she says is correct, it will tell you there is a problem with the NSS but it could be the switch, the plug or wiring going to the switch. The OBD will get you close but is not all it is cracked up to be.
  As I have said in my Profile, I'm a Parts Professional, NOT a Tech. Sometimes I have to call on my friends to help. Sometimes we get lucky and I hope this gives you a little direction. Good luck and thank you for your question.
Skip