NEED HELP ASAP Spedometer Issues

[004x41500]

truck started doing this the other day, any ideas why?


http://www.youtube.com/watch?v=XOuNIqvTTbA

[AWE Daniel]

Are there any codes?

[Preston2291]

What the hell? Does it do it just sitting there when you turn the key? Or like when you hit the gas also

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[004x41500]

it does that while driving down the road.

no codes pertaining to it. only codes i got was when i did the cluster diagnostic self test: 900, 920, 940, 999

[UnderCover]

Sounds like a speed/wheel sensor.. Those the abs and brake lights coming on?

[AWE Daniel]

That^^^^^ or a loose ground

[004x41500]

the abs light and brake light now remain on and the air bag light comes on when the speedo drops out too.

[ramthis9501]

I'm guessing a loose ground like Daniel

[004x41500]

im thinking a loose connection for sure, cause nothing else changes. truck runs great with no other problems

[FL06SRT10]

On top of the rear diff is a speed sensor take it out and clean off the metal shavings and put it back ya may get lucky and that would fix it otherwise ya have to replace the sensor. That is the problem.

[Onk]

weird

[004x41500]

found and fixed the problem. turns out the connector at the junction box under the dash had been removed before, and whoever reinstalled it caught one of the wires, and it pinched it and tore the insulation, and im guessing that when i ran my 4ga. power wire for my amp, that i bumped it, and it was grounding out on the bolt giving me all kinds of errors.

i taped the wire up and made sure not to pinch any other wires upon re-installation.

so far its fixed. hopefully for good.

[NOTPAID4]

Good luck with that; never see one to that before.

[004x41500]

well its not fixed. im gonna get back in it tomorrow and try to chase the problem down

[AWE Daniel]

Damn! And cory your sig is too big, I would take out the vehicle history bit

[FL06SRT10]

I'm serious on the speed sensor I have seen this many times

[004x41500]

its fixed now. found another wire that i had nicked when i put in my s&b intake.. taped it up and took the superchips out and now all is well with no problems.

[AWE Daniel]

Cool!

[004x41500]

yep. amd im thinking about pulling off the tb and taking a dremel to it in the near future.

[AWE Daniel]

I dunno about that one cory, it needs to be even all the way around if you want to port it properly

[004x41500]

i wouldnt be porting as much as i would just be smoothing it out, and rounding the edges.

theres a diy on another forum and seems like everyone has had good results