Tach install

[carfreak07]

Hey guys I got a tach for the truck and am not sure which pin coming out of the pcm is the tach wire. I think it is white. Is this the best place to tap into the wire or should i look for it behind the gauge cluster or something. Any advice you can give me on this install would be great....thanks for your time

Jarrod

[COWL327]

<div class='quotetop'>QUOTE(carfreak07 &#064; Feb 7 2007, 09&#58;33 PM) [snapback]82597[/snapback]</div>

Hey guys I got a tach for the truck and am not sure which pin coming out of the pcm is the tach wire. I think it is white. Is this the best place to tap into the wire or should i look for it behind the gauge cluster or something. Any advice you can give me on this install would be great....thanks for your time

Jarrod
[/b]

I think it is whitecoming from the PCM harness and if your tach has cylinder settings you have to set it to 4 cylinder....signal is drivers side cylinders only. Google the year model truck you have and what brand tach and youll find lots of info.I got mine used,its an older one but works perfect&#33; Hope this helps a little

[bluecajun5.3]

white wire behind the cluster.
cut the wires on the tach to make it a 4cylinder and your...
good to go&#33;

[carfreak07]

<div class='quotetop'>QUOTE(bluecajun5.3 &#064; Feb 8 2007, 12&#58;38 AM) [snapback]82615[/snapback]</div>

white wire behind the cluster.
cut the wires on the tach to make it a 4cylinder and your...
good to go&#33;
[/b]

ok sounds like a plan....thanks alot guys......do you guys have any pictures of your tachs mounted.....I prolly should be putting this tach in the ss instead of the truck since it is a six speed and the truck is an auto but the escalade cluster only goes to 6000....and besides that the big tach will give it some character that the ss doent need as bad&#33;

[04T76]

or u could have done it from ur pcm the pin would have been R10 and wit the white wire.

[02CHEV]

<div class='quotetop'>QUOTE(carfreak07 &#064; Feb 8 2007, 01&#58;49 AM) [snapback]82623[/snapback]</div>

ok sounds like a plan....thanks alot guys......do you guys have any pictures of your tachs mounted.....I prolly should be putting this tach in the ss instead of the truck since it is a six speed and the truck is an auto but the escalade cluster only goes to 6000....and besides that the big tach will give it some character that the ss doent need as bad&#33;
[/b]

i love mine where its at what would be better go from the pcm, like i have it now or from the cluster. just askin

[04T76]

4rm the pcm because u know 4 sure whats going where&#33;&#33;&#33;&#33;&#33;

[phantom405]

how come I can&#39;t get my tach to work? I have it tapped into the white wire behind the cluster but nothing happens...any suggestions. This is the second tach I&#39;ve tried. I&#39;ve put it on every different cylinder selection

[Blackdog]

<div class='quotetop'>QUOTE(DozerDan &#064; Feb 15 2007, 09&#58;41 PM) [snapback]83447[/snapback]</div>

how come I can&#39;t get my tach to work? I have it tapped into the white wire behind the cluster but nothing happens...any suggestions. This is the second tach I&#39;ve tried. I&#39;ve put it on every different cylinder selection
[/b]

If your tach has read back and such features make sure your power wire is hooked to a good ignition source.And also that you have a good ground.