Speedometer needs help....
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Joined: May 2007
Posts: 79
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From: Rough and Ready California
Speedometer needs help....
My speedo isn't working, some of the time it jumps around to random speeds. Does this mean it's most likely a broken cable? It can be a little unnerving to cruise by a patrol car in a bright red corvette when i'm not sure how fast I'm going.
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Joined: May 2007
Posts: 79
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From: Rough and Ready California
I must've been lucky, getting the cable out was quick and easy. I was not so lucky however in that it didn't fix the problem. It's not broken, and lubrication did nothing. It sat right at zero. I guess I'll stick a drill on the driveline and see what happens.
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Racer
Joined: Mar 2005
Posts: 487
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From: Jacksonville FL
lubing the cable usually fixes the bouncy needle problem. are you sure your cable is not broken now? does it still bounce or just sit at zero? if it is sitting at zero it may have fianlly broken.
if your cable is not broken, i would try lubeing it again and see if it fixes it.
if it is broken, obviously it needs to be replaced.
if not broken, try your drill idea. if it still bounces you may need to remove the speedometer head and lubricate it with some lite machine oil.
hope this helps,
Mike.
if your cable is not broken, i would try lubeing it again and see if it fixes it.
if it is broken, obviously it needs to be replaced.
if not broken, try your drill idea. if it still bounces you may need to remove the speedometer head and lubricate it with some lite machine oil.
hope this helps,
Mike.
Racer
Joined: Mar 2005
Posts: 487
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From: Jacksonville FL
Thread Starter
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Joined: May 2007
Posts: 79
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From: Rough and Ready California
Ok, drill seems to make the speedo work so it can't be the cable. I pulled the plastic gear out by the trans to see if it was stripped and it looks fine. The square slot to hold the cable also looks good. It seems to be something before these, but what? It felt like there was a worm gear inside to spin the plastic gear I pulled out, and I couldn't feel any odd breaks or anything. I'm not sure where to look from here.
Drifting
Joined: Apr 2003
Posts: 1,323
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From: Castle Hills Texas
If you have cruise control, it could be the transducer. It is located just on the other side of the firewall just sort of below the windshield washer fluid container on my 80. Not sure on yours.
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Joined: May 2007
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From: Rough and Ready California
No cruise control on this car. ok, driving around today it was jumping all over the place, like maybe it needed to be lubed. I stopped for a few hours and when I got back in the car it stayed at zero the whole time. I didn't change anything between the two drives.
