Tach quit

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Jun 18, 2011 | 01:32 PM

Danny Lee 97 Disco

Thread Starter

Baja

Joined: Mar 2010

Posts: 5,584

Likes: 7

From: Pittsburgh PA suburbs.

Tach quit

GUYS,

Tach quit, changed alternator. Tach still dead, what next?

Jun 18, 2011 | 05:37 PM

Spike555

Team Owner

Joined: Jun 2007

Posts: 26,212

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From: Grand Rapids MI

Double check your work.
Double check that "new" alt is good.

Jun 20, 2011 | 10:49 AM

Danny Lee 97 Disco

Thread Starter

Baja

Joined: Mar 2010

Posts: 5,584

Likes: 7

From: Pittsburgh PA suburbs.

Does anyone know what the input from the alternator to the tach is supposed to be?

I want to try reading with a meter to help isolate what my problem is.

Jun 20, 2011 | 12:04 PM

Dodger

Mudding

Joined: Dec 2010

Posts: 118

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From: Clarksville, Tn

8 vac I think is what the Rave calls for, it has been a while, but I had to change my alt for the same reason (changed it twice now!)

Aug 5, 2011 | 05:21 PM

Danny Lee 97 Disco

Thread Starter

Baja

Joined: Mar 2010

Posts: 5,584

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From: Pittsburgh PA suburbs.

Found the large electrical connector near the ECU was disconnected!!!!

Aug 6, 2011 | 02:00 PM

wheelgarage

Recovery Vehicle

Joined: Aug 2009

Posts: 1,033

Likes: 4

From: SF Bay Area

Did it fix the prob?

Aug 6, 2011 | 04:09 PM

Danny Lee 97 Disco

Thread Starter

Baja

Joined: Mar 2010

Posts: 5,584

Likes: 7

From: Pittsburgh PA suburbs.

Yes. Tach and Temp Guage magically returned to life right after restoring the electrical connector.

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