Get the latest advice about your car

Get Started
Advice » Q&A » 1999 GMC Yukon

Q&A

Ask Your Question

1999 GMC Yukon

Question: Error code P1345 follow up

Question

Reagan, Gasoline, Vancouver, WA, January 14, 2010, 23:24
Profile_thumbnail
 Rookie

P1345 says Crank and Cam position sensor correlation. What does this mean? other than they are not in correlation. I have been to mechanic, he hooks up "machine" to correlate them, yet check engine light/code stays on even when his computer says they are in synch. Do I need to replace Crank and/or Cam position sensors?

2 Answers
Answer It
Flag This
  • Medium-star Best Answer
    dandd January 15, 2010, 12:10
    Profile_thumbnail
     Master

    If the 'adaption re-set' has not worked then you have another problem. I would look at the data stream from the cam and crank sensor make sure that their ratios are correct, make sure that the cam retard number is 0-3 degrees and no more. if it is then check the distributor, if there is play in side on the reluctor wheel, then a new distributor is needed. if still no luck then do a timing chain slack test, if the timing chain is too worn, it can throw off the cam/crank timing. if the above 2 tests turn out really well, then I would first replace the cam sensor, because if the crank sensor goes bad it will usually set its own code, I believe that this is an OEM code 35 on GM. lastly replace the Crank Sensor.

    Flag This

  • Reply

    Reagan, January 15, 2010, 13:33
    Profile_thumbnail
     Rookie

    TY very much. Seems you may be right on after all of the research I have done. Again, I will let you know how it goes this weekend.
    Reagan

    Flag This

  • Reply

    Reagan, January 28, 2010, 23:58
    Profile_thumbnail
     Rookie

    After allot of trial and error; the only solution I found was to simply replace the DISTRIBUTOR itself. Very easy to do with a cap, rotor, CMP sensor & Distributor already put together. Very simple.
    R

    Reply
    Flag This

  • Answer #2

    valvebanger December 06, 2010, 13:16
    Profile_thumbnail
     Rookie

    I am puzzled as well. I have a '98 silverado with 5.7L. It shows the same code. I have replaced the timing chain, distributor and crank position sensor. It still shows the same code after clearing several times and continued driving. LLMF

    Reply
    Flag This
Answer Ranks

This week's top 10

1 globalhelper 6 obdcar
2 milesauto 7 TimGoodreau
3 csubak30 8 raiderron
4 jose8889 9 Merrimack Auto
5 Autohaus Lake Norman 10 Camster