CES Light

d98gt · May 6, 2006

On my way in tonight, my speedo dropped down to zero and my overdrive light kept blinking on and off (overdrive wasn't kicking on/off however). After a while of that, the Check Engine light kicked on and has stayed on.

I killed the car at the next stop and the o/d light stopped blinking, though the CES light is still on.

Any idea why my speedometer stopped working and what do I need to fix this? My odometer ALSO stopped

d98gt · May 6, 2006

Alright, so the speedometer started working about but at times will randomly just hop back down to zero. The o/d light isn't doing it today, though the CES light is still there. The car is running perfect however which is what's bothersome.

I had my transmission replaced about 3k miles ago, so could there be a loose wire or anything? Do you think I should just unhook the battery and reset the computer to remove the CEL? I could go get the code ran, though what will this really prove? I have a wedding to attend later today so I'd like to fix this as quick as possible.

Move this to tech

Thanks

Mike97gt · May 6, 2006

most likely you have a VSS ( vehicle speed sensor) fault. pull the code and get back to us.

BTW I moved this to tech.

d98gt · May 6, 2006

Thanks for the move

I'll unhook the battery for a bit then go get the code pulled.

Mike97gt · May 6, 2006

d98gt said:
Thanks for the move

I'll unhook the battery for a bit then go get the code pulled.

NOOO do not unhook the battery before you pull the code, this will erase the code then we have to start over.

d98gt · May 7, 2006

You nailed it

Ran the code and it came back to be a malfunction of the VSS. I bought one while there (Under $20) though haven't had the chance to put it on yet.

Funny thing is, on the way back home, the lights stopped blinking and everything seemed normal. I'll switch it out anyways since it's only a $18 part and is likely to mess up again if I don't do it.

My question is... Will this make my speedometer work ALL OF THE TIME instead of it deciding to take random plunges down to zero and then back to whatever speed I was going. The speedometer is needed =)

Also, how hard is it to replace the VSS? Estimate on time, though it does seem like it pops right in?!?

Thanks

Mike97gt · May 7, 2006

d98gt said:
You nailed it

Ran the code and it came back to be a malfunction of the VSS. I bought one while there (Under $20) though haven't had the chance to put it on yet.

Funny thing is, on the way back home, the lights stopped blinking and everything seemed normal. I'll switch it out anyways since it's only a $18 part and is likely to mess up again if I don't do it.

My question is... Will this make my speedometer work ALL OF THE TIME instead of it deciding to take random plunges down to zero and then back to whatever speed I was going. The speedometer is needed =)

Also, how hard is it to replace the VSS? Estimate on time, though it does seem like it pops right in?!?

Thanks

yes that should fix your speedo needle droping off like that. the VSS is not hard to install, one 10 mm bolt and then you got to kind of twist and pull it out, the rubber o-ring can stick inside and make it hard to pull out, some penetrating lube might help there.

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