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Odometer failure
For some unknown reason, the odometer quit working in our ’94 XL Liberty – I have paperwork stating the engine hours before correcting the issue. My question is – what would be a acceptable method of converting engine hours to mileage? I know it won’t be perfect but perhaps close…..
Thanks in advance
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9 Replies
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Depends on how fast the coach was driven prior to the odometer failing, stage lengths between stops, amount of time spend idling, city driving vs interstate, etc.
I vaguely recall someone mentioning that the mileage might be in the Detroit computer.
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The original equipment speedometers in that vintage coach did not have a high degree of reliability and Prevost has or had a kit for a replacement. The replacement as delivered starts at zero miles, so when I replace speedometers in my 87 and 97 I noted the last recorded mileage, and the date the new one was installed.
How may miles you travel per unit of time is so dependent on your normal speeds, where you were driving, traffic conditions, etc. your best guess is as good as any information you might have.
I agree with Dick, I think the real miles are stored in DDEC.
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Eugene,
You do have oil change service records, yes / no ?
If you changed your oil recently that would be a good place to start.
AL
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I replaced mine a year a go or so I had to send picture of old odometer and sign a document stating is is correct and they sent it to me with correct mileage
Looked it up North Hollywood Speedometer (818)761-5136 $217.14 includes new speedometer- miles set correct- tax- shipping this place does a lot of fire trucks
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The ECM records Miles and Hrs.
Jack
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My old original speedometer started behaving erratically 6 yrs ago. I tighten some grounds on the backside of the instrument panel and all has been well since.
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odometer was working sporadically when previous owner took it to Detroit facility and got hour reading off engine – odometer has been working ever sense. I’m thinking a reasonable guesstimate of average miles per hour times engine hours at that time woud give me an acceptable mileage reading at that point. I’m thinking an average of 50 mph would work??
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I’d use 53mph.
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I’m in the commercial trucks sales business and we use 30 miles for every hour as a starting point guide if there is no way to read the ECM.
My Coach does not have an ECM, it all mechanical.
Hope this helps.
Rick
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