As I look at late 1990's coaches on Motorhomes of Texas website I see that many of them have unknown or estimated mileages. Why is that?
Quite likely the original spedo quit and a new one was installed. That does happen.
They SHOULD have notes detailing this with the coach. If not, it would make me look very closely at what else was not done/documented.
Perhaps a car fax or equivalent could shed light on mileage through the years.
Checking the hour meter could also shed some light on the mileage. ^.^d
With you looking at late '90 models they will have an electronic engine. The ECM will have the mileage encrypted in it's memory and can't be altered. This info can be pulled off by a Cummins shop computer or a Silverleaf computer interface. One thing is that if the ECM has been changed out (not likely but they do fail) then this info will be off.
Mike
All U300 Foretravels with Detroit 2 cycles have an ECU that can be read with miles, fuel in gallons used since new, etc. Generator times are not that good of an indication. This is from the'80s until the smog got them in 1995.
Pierce
Yes, replaced a bunch of speedo's on that gen coach.
Ditto for the Cat 3126....Computer can be read. Silverleaf is hooked to engine computer, won't lie unless changed as others have said.
Hour meter on the tachometer should give you the hours. I just divided by a number i threw at it...average 45 MPH, and it came out close.
By the way, the engine computer, showed around a 1,000 miles less then the speedo on our coach
Chris
How many miles on the coach? Tire size if lots of miles.
Now that makes sense...LOL
111K........Same tire as stock in height. I would imagine the computer is more actuate then the after market gauge.The speedo is very close as far as MPH goes
I believe that the speedometer is supposed to be within 5% tolerance. Mine registers faster than the actual speed. At 66 I'm registering just shy of 70 so that's about the 5%. Multiply that out over 100,000 miles......