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ztrip odometer randomly resets @ startup?

JHZR2

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JHZR2 Enthusiast

JHZR2

Posted
Posted

Hi,

 

This is an issue that I probably should have addressed while in warrantee, but it happened rarely in the extreme cold back then, and now it has become more occurrent, and shows up even when warm. It is still random and doesnt always occur...

 

First, the truck is the 98 S-10 ZR2, 40K. It has the analog speedo/tach, but the electronic odometer, trip odometer and gear selector displays.

 

Sometimes when I start the truck, the trip odometer will reset itself to 0.0 for no apparent reason. I know this because I typically leave it on that setting to see how many miles Ive driven on my tank of fuel. I dont see much of a reason why. I dont have any aftermarket electronics installed, or even have anything installed in the cigarette and power outlets.

 

One thing that I do see is that when cranking, the voltmeter will be down around 9V. I think thats typical (Ive never had a vehicle with a voltmeter before), and the truck starts and runs fine, even at single digit temps. But, I have to wonder if a certain voltage has to be constantly supplied to the gauges for the trip odometer, and if my voltage drops too low, the memory is erased (although at that point, I have to wonder why the regular odometer wouldnt reset then as well).

 

Has anyone else noticed such a problem before, and if so, did you figure out a solution?

 

Thanks,

 

JMH

slim Enthusiast

slim

Posted
Posted

I think you are on the right track with the volts. The truck does have a battery run down protection program. I'll bet that's whats happening. Is it time to replace the battery? I dont know the answer to that.

JHZR2 Enthusiast

JHZR2

Posted
  • Author
Posted

Well, I had the truck into my dealer to diagnose the squeak and hot wheel cylinder ive been having, to dinf that my battery was operating poorly (they checked because I mentioned the trip odometer), and they are replacing the battery with a 7/70 delco one.

Its funy, because this problem happened on and off since about a year old, yet the battery always operated fine, as it strted the truck in single dfigit temps without any real hesitiation besides a slow first crank. But I think the 9V drop/bad plates has something to do with it.

 

ill reply to tell if this seems to fix it.

 

JMH

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