94 dodge ram tach hook up

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jesse360

Member - Posts: 4

Joined: October 15, 2008

Location: New York, United States

Posted: October 15, 2008 at 9:29 PM / IP Logged

so i bought a 94 ram 1500 and it didnt have a tachometer so i went to a junk yard and picked up a used gauge cluster with tach out of a 96 ram and the tach will not work when installed ...something with the pcm but im not exactly sure

thanks jesse

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ckeeler

Gold - Posts: 1,461

Joined: June 20, 2008

Location: New Mexico, United States

Posted: October 16, 2008 at 12:34 PM / IP Logged

so you installed the used instrument cluster right in place of the old one and just pluged it in right? but do you know if there is even a tach wire in the plug of the instrument cluster for your truck or not? have you tested for and found it there?

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chriswallace187

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Joined: March 11, 2002

Location: Pennsylvania, United States

Posted: October 16, 2008 at 2:28 PM / IP Logged

You need to get information on the pinout of the cluster connector(s). They aren't necessarily the same between different trim levels/models of that truck, regardless of whether the connectors plug in.

For that info, you could use ALLDATA or Mitchell's online DIY services, or possibly a paper Chilton/Haynes manual.

C Renner's Auto Electronix

My service is cheap, quick, and good - pick any two

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ckeeler

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Joined: June 20, 2008

Location: New Mexico, United States

Posted: October 16, 2008 at 2:38 PM / IP Logged

chriswallace187 is absolutly correct. thats why i asked the above question. because the wire you need to make the tach work may not be there. you may have to run one.

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jesse360

Member - Posts: 4

Joined: October 15, 2008

Location: New York, United States

Posted: October 16, 2008 at 3:31 PM / IP Logged

ya i heard that the tac wire was in the bundle but it might just be disconnected or something

thanks jesse

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jesse360

Member - Posts: 4

Joined: October 15, 2008

Location: New York, United States

Posted: October 16, 2008 at 3:37 PM / IP Logged

allright thanks for the advice ...if i have to run a wire would i have to run it to the tach or into the plug?

thanks jesse

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ckeeler

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Joined: June 20, 2008

Location: New Mexico, United States

Posted: October 16, 2008 at 3:48 PM / IP Logged

you would have to go to the plug at the back of the instrument panel.

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94 dodge ram tach hook up

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