abs issue
08-17-2015, 04:35 PM
#1
abs issue
my truck random turns the abs light on sometimes when started. I can not get a code because, once you shut the truck off the light goes out(restart truck= no light). I've tried searching to no avail. Anyone heard of this before?
08-17-2015, 11:20 PM
#2
2003 F-150 King Ranch
id bet on a speed sensor. Same thing happened until I got my wallet raped by ford. Check the speed sensors for cracking or tearing. If one is cracked or anything that is most likely the issue
08-18-2015, 05:44 PM
#3
08-19-2015, 09:11 AM
#4
Senior Member
abs issue
Your speedometer reads directly from the transmission. The wheel speed sensors (if 4 wheel abs - 1 on on each front hub & and 1 on the rear diff, if rear abs only then just the rear diff) communicate with the abs module to determine if a tire is moving faster than another. So, no. A bad wheel sensor will not affect the speedometer.
08-19-2015, 07:57 PM
#5
Your speedometer reads directly from the transmission. The wheel speed sensors (if 4 wheel abs - 1 on on each front hub & and 1 on the rear diff, if rear abs only then just the rear diff) communicate with the abs module to determine if a tire is moving faster than another. So, no. A bad wheel sensor will not affect the speedometer.
08-19-2015, 09:14 PM
#6
What year is it and what system does it have? They have RABS and 4WABS. You can tell if it has 4WABS if you see a large device under the hood with a bunch of brake lines going into it.
08-20-2015, 07:10 AM
#7
2003 fx4 with 4wabs. Im going to jack it up and try testing them.
Last edited by fordsonly; 08-20-2015 at 07:13 AM.