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What is this sensor and wiring?

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What is this sensor and wiring?

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Old

Jul 19, 2005 | 10:06 PM

#1

LBell101

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Senior User

Joined: Sep 2002

Posts: 306

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From: United States

What is this sensor and wiring?

89 E350 with 7.3 Liter Diesel.
On the front of the motor near the oil filler (just to the left)
there is a large threaded sensor with a harness that goes through
the firewall at the drivers feet. On mine the wires under the dash
are cut up mostly but one set goes to a light bulb.
What does this unit do? Should I attempt to get it working again
or just get rid of the wiring?

Thanks!

Larry

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Old

Jul 19, 2005 | 10:30 PM

#2

fellro86

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Joined: Feb 2004

Posts: 11,697

Likes: 3

From: Marengo, Iowa

if it is two wires and comes off the timing cover, it is the tachometer harness.

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Old

Jul 20, 2005 | 04:36 AM

#3

trike1946

Logistics Pro

Joined: Apr 2004

Posts: 4,292

Likes: 5

From: NJ where fun comes to die

Club FTE Silver Member

Sounds right. Tach sensor, even if you don't have a tach. My 90 has one and it has to do with the trans shifting, and I don't have a tach.

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Old

Jul 20, 2005 | 10:59 AM

#4

BikePilot

Tuned

Joined: Oct 2004

Posts: 300

Likes: 0

Yep its an rpm sensor.

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Old

Jul 20, 2005 | 10:00 PM

#5

LBell101

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Senior User

Joined: Sep 2002

Posts: 306

Likes: 0

From: United States

Thanks, never would have guessed that.
Since it's not connected to aything, I just removed the wiring.
I've already driven it 4000 miles without it connected to anything.

Larry

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