93 Caprice speedo problem - Chevy Impala SS Forum
 
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post #1 of 6 (permalink) Old 03-25-2003, 10:39 AM
Steve96
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A friend of my daughter has a 93 Caprice LS, 305, analog speedometer. She cornered me the other day and said when she is just sitting still, the speedometer reads 90 mph. She also said the trip odometer racks up miles like mad even sitting still, something like 45 miles sitting in a drive thru at Taco Bell. I've never looked at the car personally. Anyone seen/experienced something like this? It's a new one on me, all I can think of is speedo cable bad......

TIA,

Steve
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post #2 of 6 (permalink) Old 03-25-2003, 01:40 PM
McThag
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Check her voltage. Mine did this a couple of time when the connections in the red box on the fender were loose. When the voltage dropped, the speedo would climb.
post #3 of 6 (permalink) Old 03-26-2003, 05:15 AM
Steve96
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Curtis,
You may be on to something. She says she has some hesitation once in a while, like a bad egr on an LT1. This 'red box on the fender', is it similar to the aux box on an LT1 Caprice/Implala?

Thanks,

Steve
 
post #4 of 6 (permalink) Old 03-26-2003, 07:16 AM
joespiek
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Must get really good "mileage" rack up 45 miles at Taco Bell probablly only used like 1/10 of a gallon. I'd tell her not to worry about it and sell it as an economy car.
post #5 of 6 (permalink) Old 03-26-2003, 08:04 AM
McThag
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I dunno if it's the auxillery power box, I can never remember its name. But the positive battery cable goes straight to it and then there are several wires coming out of it going to the rest of the car. It is located at the very top of the fender liner on the passenger side.

But it occurs to me that her battery posts might be the problem here, not the connections in the box. Lots of people here (including me) have had problems with this.

XXL_VETTE has mentioned to me that this box is a 9C1 only option on 94-96 cars, and on those cars it is on the front of the fender liner, almost under the coolant bottle.
post #6 of 6 (permalink) Old 03-26-2003, 08:33 AM
Steve96
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Thanks Curtis. I'll get a hold of her and look under the hood. I'll r&r the battery cables and check out the 'red box'. Never would I have thought this would have been an electrical problem. That's what makes this board and members great!

Steve
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