1997 Ford F150 O D light flashing Code PO500

1997 FORD F-150
129,000 MILES • 6 CYL • 4WD • AUTOMATIC
Avatar
RJENKINS
  • MEMBER
  • 2 POSTS
have changed both speed sensors(transmissions and rear end) and speedometer head. the speedometer needle waves 2-3 MPH sometimes more. The O D light seems to flash around 40 - 55 MPH
Aug 16, 2010 at 2:55 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
the PO500 is for the VSS. Is the trans shifting normally?
Aug 16, 2010 at 4:11 PM
Avatar
RJENKINS
  • MEMBER
  • 2 POSTS
I have replaced the VSS and the ABS/speed sensor, also replaced the speedometer head. The speedometer needle seems to react very slow and waves back anf forth, The transmission is shifting good. (1997 ford f150 4.2 liter 4x4 with a 4r70w transmission) I replaced the gear on the VSS, with a new one, when i pulled the VSS out again and look at the gear, look like something was eating the gear up.
Aug 17, 2010 at 10:35 AM
Avatar
JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
It must be the gear inside that is causing the problem.
Aug 17, 2010 at 6:35 PM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle