tach
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Postmaster
Joined: Jun 2009
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From: Maryland
tach
My tach hasn't worked since i got the truck. I am curious as to how to fix it and I am familiar with how the psd tach works. is the systems similar? Also what to i need to check?
Post Fiend
Joined: Nov 2003
Posts: 21,285
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From: Nutter Fort, WV
PSD tach's work of the CPS.
IDI tach's work off the sensor on the IP drive gear, and that is probably where your problem is.
Look for the insulation to be pulled back exposing bare wires where they go into the sensor.
IDI tach's work off the sensor on the IP drive gear, and that is probably where your problem is.
Look for the insulation to be pulled back exposing bare wires where they go into the sensor.
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Postmaster
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From: Maryland
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Postmaster
Joined: Apr 2009
Posts: 4,086
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From: Malahat/Cowichan Valley
so the tach just plugs into the sensor in the IP housing? thats it? Can i get a tach from a junker and just plug in and have a working tach?
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Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
In your 150 cab, I know the wiring is not there.
Tach sending unit plugs into the harness, and on diesels the harness has the wiring in it.
Clusters that did not have a tach, do not have the printed circuits on them for the tach.
If you get the cluster with a tach, then run wires from the sensor to the cluster plug, you should be able to have a tach.
Tach sending unit plugs into the harness, and on diesels the harness has the wiring in it.
Clusters that did not have a tach, do not have the printed circuits on them for the tach.
If you get the cluster with a tach, then run wires from the sensor to the cluster plug, you should be able to have a tach.
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