Posted: Sun Mar 27, 2011 11:32 pm Post subject: Conductive Grease to fix Wheel Speed Sensor Connections?
Hi, (Ď03 3.8 91k) Iím having some trouble with the wheel speed sensor harness on my car. Iíve been experiencing the brake pulse/traction light problem. So far I can fix it temporarily by unplugging and reseating the two front sensor harnesses from the hub. I was wondering if packing the connection with conductive grease would cause any problems. Iíve havenít looked too closely at the connection... Is there a way to re-tension it?
You can get a pair of hubs on ebay for the front of the impala for under 90$ there is a year warranty
That's a terrible idea. The only respectable hubs for our cars are AC Delco ($$$$$) and Timken (about 90 bucks each). I have read more than enough stories of people buying cheap hubs only to have them fail in 6 months or even worse, be bad out of the box.
Protip: If you don't know what you're doing, don't do it.
In my particular case, the issue seems to be a loose connection at the harness where the wires meet the hub. Does anyone see a problem with packing the connection with conductive grease, will this risk shorting the two prongs together or something?
I haven't looked closely at the connection in a while and don't remember if it's one or two prongs and if they're separated or not.
These are common issues with connectors.
When we do it by accident while testing we call it "raping the pins".
Basically the internal catch that contacts the pin will get bent to far back and not make enough contact.
This can also happen if you do not use dielectric,it's known as terminal fretting.
In the case of terminal fretting unplugging and plugging back in will generally repair,but no dielectric will make it susceptible to furthur fretting.
If the pins are raped,which makes them loose and have bad contact-you can generally disassemble the connector and use a small needle to bend the pin contact back down a little bit.
Most but not all terminal's can be repaired that way.
It could also be a damaged connector or wire,but fretting and raped pins are an extremely common occurence on vehicles.
They especially cause issues in systems that depend on measured resistance and digital signal circuits like abs or airbags.
Always put dielectric on any connector you unplug as good general practice.
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