Skip to main content ↑ ↓
Topic: What is this sensor? (Read 511 times) previous topic - next topic

What is this sensor?

The Speedometer and Tachometer is not working properly on my 91 GV. Both are reporting high number than actual value. Reading from the forum, it seems like the sensor might went bad. There are parts still available, but my problem is where are the sensor for Speedometer and Tachometer?

In the attached picture, it seems like an sensor, is that the speedometer sensor?
1991 Grand Villa U300

Re: What is this sensor?

Reply #1 –
That appears to be the tans. fluid temp sensor for the dash gauge.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: What is this sensor?

Reply #2 –
Or could it be speed sensor. You are most probably right  Mike As you are much more in tune with things than me.
John
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

Re: What is this sensor?

Reply #3 –
What transmission do you have?

If it is the Allison 3060 then the output speed sensor is on the transmission.  See post linked below:

Speed sensor wire broken
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: What is this sensor?

Reply #4 –
I think on those the speed sensor is more to the top of the transmission near the tail shaft.  Twig will know for sure, he will chime in this afternoon. That looks like a MT 643

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: What is this sensor?

Reply #6 –
OK, with the 6V92 and 4-speed tranny, look on top of the tail shaft housing (area between the transmission body and the U-joint).  Should have a 2-wire connector.  See info in thread below:

Speedometer sensor removal

The sensor might look like the one linked below;

ALLISON MAGNETIC SPEED SENSOR ASSEMBLY PART NUMBER 23013334 | eBay
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"