Height sensors going wrong

Discussion in 'V8 - Maintenance & Troubleshooting' started by GEN 3 SHO FAN, Oct 16, 2020.

  1. GEN 3 SHO FAN

    GEN 3 SHO FAN SHO Member

    Joined:
    Jan 31, 2015
    Messages:
    708
    Likes Received:
    208
    Occupation:
    Records manager
    Location:
    Canada
    I came to the idea that one of the front strut was shut because the front bouncing a bit more than rear (when rolling) and managed badly some rought bumps.

    I remembered however a story said by a guy just passing beside me when working on the car telling me his father had one and had to replace 3 times a strut thinking they were wrong to finally understand that it was the height sensor that was shot...

    Long story short, when they are going wrong, these sensors goes "blind" and send no more signal to the SARC module and then, the strut stay always in soft mode. That gives truly the impression the strut is shot. And if you didn't replace it, it will probably makes more wear on the strut.

    Sadly, I dissasembled the failing one but no defect was seen. The problem is probably in the upper part (left).

    20201012_203724_HDR.jpg
     
  2. E1

    E1 Crash Tested

    Joined:
    Jan 24, 2003
    Messages:
    596
    Likes Received:
    310
    Occupation:
    Printing mechanic/engineer
    Location:
    Chicago area
    Home Page:
    To test the strut. KEY OFF.

    Push down repeatedly on the corner of the car trying to make it bounce.

    Good strut = No bounce, stops immediately.

    Bad strut = bounces a couple times
     
    stephen newberg likes this.
  3. GEN 3 SHO FAN

    GEN 3 SHO FAN SHO Member

    Joined:
    Jan 31, 2015
    Messages:
    708
    Likes Received:
    208
    Occupation:
    Records manager
    Location:
    Canada
    Yes, i did this test for the strut. This test is like soft bumps on the road. Sensors send no signal doing this (to go in hard mode).

    Struts seems good but when i go on big rought bump, sometimes (and more and more frequently) the strut stay in soft mode and i heard strut "knocking" at his maximum compression.

    At this time i replaced the 2 front sensors. I took the car this weekend and now the front seems more stiff and stable then the rear... I will replace the rear too.

    This sensors are difficult to find now... I made some searches and Ford vehiciles had them (Continental, Mark VII, Expedition, etc.) and they are identicals to our BUT they don't have the same part number... I have spares sets from conti but i didnt tryed yet.
     
  4. E1

    E1 Crash Tested

    Joined:
    Jan 24, 2003
    Messages:
    596
    Likes Received:
    310
    Occupation:
    Printing mechanic/engineer
    Location:
    Chicago area
    Home Page:
    If you need some, I am sure I have some 'around here somewhere' as I seem to say frequently.

    Also, for those watching.

    96 has 4 sensors
    97 has 3 sensors, only 1 in back
    98 has 2 sensors, fronts only
    99 should not have sensors
     
    GEN 3 SHO FAN likes this.
  5. GEN 3 SHO FAN

    GEN 3 SHO FAN SHO Member

    Joined:
    Jan 31, 2015
    Messages:
    708
    Likes Received:
    208
    Occupation:
    Records manager
    Location:
    Canada
    Thank you Éric. For now, I had the luck to find a set from another canadian SHO. Sadly one was damaged and I repaired it with part from one that from a 1999 Continental.

    I tought at first sight that ones on my 96 SHO had a missing part. We can see it on the photo above. Its the curved steal sheet around the upper part. She has 2 small arms that seems to tightening the lower part on the upper one, eliminating some lateral loose between them (more precise sensors ?).

    My 2 SHO sets of sensors are from '96 and I cannot say if there is change (the added part) for them for the next years (97-98).
     

Share This Page

If you wish to help keep SHOforum running, please click the donation button below