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  • SN95 4.6L Mustang Tech

Symptons for bad Crank Position Sensor?

  • Thread starter Thread starter FoxRod87
  • Start date Start date Aug 1, 2008

FoxRod87

Active Member
Feb 1, 2006
243
1
27
Carolina
Aug 1, 2008
#1
  • Aug 1, 2008
  • #1
Has anyone had one go out before? My car woundn't crank yesterday after I got off work. Didn't throw any codes. Checked for fuel and found fuel. Checked for spark and it didn't have any spark. Then it all of a sudden had spark. Ran it home and it ran fine and this morning it wouldn't start. So after work today I got a CKS. Come home and messed around with it and then finally it started. Then I put the sensor in and let it sit for 4.5hrs. And it started fine. But I am thinking if it isn't this then it is either the engine harness or the PCM. Thanks.
 

FoxRod87

Active Member
Feb 1, 2006
243
1
27
Carolina
Aug 2, 2008
#2
  • Aug 2, 2008
  • #2
Well my car started this morning. So hopefully it is fixed.
 

rabidscoobie

10 Year Member
Jun 21, 2007
616
12
48
College Station,TX
Aug 2, 2008
#3
  • Aug 2, 2008
  • #3
Hope it stays fixed.
I had one go bad in my GT but I cant remember the symptons,so I guess Im of no use...
 

rabidscoobie

10 Year Member
Jun 21, 2007
616
12
48
College Station,TX
Aug 2, 2008
#4
  • Aug 2, 2008
  • #4
NM on the previous post.I just read another post and remembered what it was.I had a bad diode in the altenator that was throwing a cam sensor code.
 

joshheat25

Member
Nov 8, 2004
871
0
16
Delaware
Aug 3, 2008
#5
  • Aug 3, 2008
  • #5
Edit: thought it was Cam position sensor...
 
B

BobHyatt

New Member
Aug 7, 2007
378
1
0
Aug 3, 2008
#6
  • Aug 3, 2008
  • #6
chances are pretty good you found the problem. A little oil intrusion can make them go intermittent. the alternator is a less likely candidate at cranking speeds, as it doesn't produce much voltage at the RPM level... we owned a T-bird (4.6) that developed this problem, and saw another one where the crank sensor was bad.
 

FoxRod87

Active Member
Feb 1, 2006
243
1
27
Carolina
Aug 4, 2008
#7
  • Aug 4, 2008
  • #7
I guess the Crank sensor was it. It hasn't missed a lick yet.
 

blckstng96

Member
Apr 13, 2004
208
0
16
Aug 6, 2008
#8
  • Aug 6, 2008
  • #8
yeah it was prob your crank sensor and if it wasnt that i would check your coil packs
 
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