My speedometer stop working..it went a little crazy before it stop working...Help!!!

 

bad ground or vvs my guess

 

check the wire harness connection to the VSS (vehicle speed sensor) that connects to the transmission housing.....near the starter area. the plug connection is shown above #11 in the pic below.

this same problem happened to me because of a weak connection after some maintenance. plugged it back in tight and it was good to go.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC2_OTAKU &raquo;</TD></TR><TR><TD CLASS="quote">check the wire harness connection to the VSS (vehicle speed sensor) that connects to the transmission housing.....near the starter area. the plug connection is shown above #11 in the pic below.

this same problem happened to me because of a weak connection after some maintenance. plugged it back in tight and it was good to go.

</TD></TR></TABLE>

Werd. If the speedo goes, the ECU should throw a code. Usually the VSS. Take the plug off (unplug it) and check to see if all the male connective pins are in tact and not corroded off. Clean out the inside of the plug (male and female), and cover the male side of the connection with conductive grease (should be able to buy it at autozone or whatever you guys have in the US). Plug it back, reset your check engine light and go.

If that doesn't work, you can try and find a new male plug at the wreckers, or online somewhere. Snip the old plug off, and solder on the new one. Cover male side with conductive grease and plug back in.

If that doesn't work, you need a new VSS. They're relatively cheap, and easy to install. The above diagram basically says it all in terms of installation.

 

Thanks Man..I will give it a shot

 

I got the same problem before. It should be the connection problem due to some coolent throw in the plug (speed sensor). Just need to change the plug.

 

I've got a problem where if I take mine up between 8,000-9,700rpms then I lose my tach and my speedo. They both go back to zero and then start working once the RPM's drop back off. I'm running an AEM EMS ECU. I wonder if it's a ground problem?

 

As stated above, it could be the plug to the VSS itself.

I asked a shop if that could be it, they wanted me to switch out the VSS first; i did and it didn't work. I asked for a refund, lost about 80 bucks in labor, and went to a smaller shop to have the plug changed. 15 minutes and 20 bucks later, my speedo was working again.

So, to learn from this: Take your VSS out, check both the female and male connector for corrosion. If you see any corrosion on the plug, change that first as it will turn out cheaper and only requires wiring.