LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Speedometer/vss.

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Old 11-05-2010, 01:15 PM
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Default Speedometer/vss.

My speedo doesn't work. It has a new connector. I checked the wiring. And it's not throwing a code. My speedo goes up to 10 then falls back down when going 10mph down my gravel road. Any help?????
Old 11-05-2010, 01:44 PM
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Is this a 93 4L60 car? I can't offer much help, but when I bought my 93 the guy I bought if from had a 700r4 in it with a cable VSS and didn't have it hooked up so the speedo guage didn't work at all. My SES light only came on every once in a while and usually only when I had been driving it for at least 15-20 minutes. I'm just saying the SES light may not come on when you have vss problems.

You need to provide more info about the car and you may get more responses.
Old 11-05-2010, 04:03 PM
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It's a 93 700r4.
Old 11-05-2010, 09:38 PM
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So the speedo won't go above 10mph? I don't really understand but I'll bump you back up to the top and hopefully someone else will chime in.

700r4 didn't come in the 93 f-body, it was a 4L60. Basically the same but not exactly. then 4L60E was introduced in 1994. So you're saying you took a 700r4 and put in your car?

What happens when you go 30mph or 60mph, etc? speedo sits on 0?
Old 11-06-2010, 12:20 AM
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The guy I bought the car from swapped in a 700r4 so he says. Yes it sits at Zero. Ima go play with it a little tomorrow and let you guys know.
Old 11-06-2010, 01:30 PM
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Yes it sits at zero at 30 and 60. Is the vss plug the only thing that controls the speedo.



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