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Topic: Speedometer malfunction? (Read 683 times) previous topic - next topic

Speedometer malfunction?

My speed is steady but speedometer is moving up to almost 80. Then it comes back down.  Anyone have any insight as to the problem?
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Speedometer malfunction?

Reply #2 –
Could be sender or speedo.  You may need to pull them both and send them to a speedo shop for diagnosis.  The sender usually will fail in the negative direction, so my first choice would be the speedo.  Have a great day  ----  Fritz
Fritz & Kathy Johnson
1991 36'

Re: Speedometer malfunction?

Reply #3 –
TY
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Speedometer malfunction?

Reply #4 –
When my spedo was acting up it would peg the needle. I would have to shut down the engine and restart it to reset it.

Mark
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Mark and Tanya
Milton , Florida
US Navy Veteran (DV)
1999 U270 Special 40' CAI , 2015 Jeep Wrangler Sahara

Re: Speedometer malfunction?

Reply #5 –
I still swear by    ISSPRO.com - Quality Gauges, Tachometers, Speedometers and more!
1993 U-240 "La Villa Grande"..CAT 3116 w/ Pacbrake PRXB...Allison 3060 6-speed..
Previous: 1983 Airstream 310 turbo diesel, 1979 Airstream 280 turbo diesel
                                      Build # 4297
                                      PNW natives
                      Home base:  'Cactus Hug' (Ajo, Arizona)
                        DW Judy & Chet the wonder dog
                        Full-Timers 'Sailing the asphalt sea'

Re: Speedometer malfunction?

Reply #6 –
Not much help here but I have to comment. When we bought our 2000U295 the odometer was only visible if pressure was applied to an area around the digital readout. We had MOT install a new speedo and 17k miles later all was fine. As we approached MOT to leave our coach for consignment sale the engine hours part of the tachometer started to flicker. That is how it was left as the coach sold 5 weeks later. Recently I had to replace the gage cluster in my daughter's 1996 VW Jetta due to an intermittent speedo/odo. All 3 products mentioned here were made by VDO USA. I question if this is the longevity seen in VDO products produced in Europe ?
Good time here to thank the forum for very valuable help with Foretravel life. I will likely continue to read the forum as it is just plain interesting.
Every day is a gift
Bob and Pat
2000 36 U295 cummins 350hp
Coach has been sold thanks to MOT 11/2016

Re: Speedometer malfunction?

Reply #7 –
Been there, done that. 

The Speedometer is most likely the least costly item in your FT.  Mine was doing the same thing..  Call Foretravel to get the one you will need..  $25/30.00  pc
S/W Houston 95" U320C SE/40' 
Build #4778  Cummins M11
Repairs & Covered RV Parking (BAO)
PPL is close..
 

Re: Speedometer malfunction?

Reply #8 –
Remove & clean the 3 wires on the back of the speedometer, make sure ground & ignition connections are good.