Odometer & speedometer

everything but the drivetrain

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Odometer & speedometer

Postby Ironforger » Wed May 19, 2010 4:22 pm

Hey guys,

1990 wr250 4x4 5speed

My odometer and speedometer quit working at 144k Can anyone point me in the right direction to find a replacement or are they fixable / rebuild able? I can't make it through inspection as is in NJ.

Thanks!
FOR SALE --> 1990 W250 5sp reg cab. 21 mpg. Aprx 145k. (odo broke last year) Fuel screw. KDP killed. Solid floors, rockers & cab corners. Pm me.

FOR SALE --> 1995 Izuzu NPR 16ft Morgan body/side door. 160k. 80 k on reb auto trans. 1 ton lift gate. Pm me.

2002 3500 6 sp Qaud cab 2 wd. 202k <-- One badass truck!

1999 VW beetle tdi. PP520 injec. Rocketchip st. 3. 45 mpg. 260k
Ironforger
fuel screw!!!!
 
Posts: 74
Joined: Tue Feb 26, 2008 9:09 pm
Location: Lawrenceville, NJ

Re: Odometer & speedometer

Postby Mark Nixon » Thu May 20, 2010 8:23 am

First of all, make sure the sensor and wiring is in place and functioning.
Sometimes the speedo sensor, or adaptor, will loosen up and lose contact, or fall off the vehicle altogether, which rips the sensor wiring off.
You also should check the wiring for chafing, or breakage, especially where it passes through wire holders, around the tranny and where it passes by the floor body seam, as it goes up to the engine.

If it's a bad speedo head, the speedometers are repairable, but the parts can be spendy and it may break again right away.
The main culprit in the speedo is usually either the plastic gear on the motor, or the motor controller board.
Sometimes it's just the motor on the controller board.

I have several speedos here that I need to bench test and they are for sale.

CHECK THE WIRING AND SPEED SENSOR FIRST!

Mark.
Mark Nixon
 


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