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2008 trailblazer tach location?


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ds1434 
Member - Posts: 35
Member spacespace
Joined: July 08, 2005
Location: United States
Posted: December 17, 2008 at 8:10 PM / IP Logged  

PCM plugs are different on the 2008 vs the older ones.  What plug, and what color is the tach wire.  I would just get an injector but it's a pain on these trailblazers.  I tried a couple of white wires in the plug facing the front of the vehicle but wouldn't work. 

Thanks

TechHead
ceasar326 
Copper - Posts: 239
Copper spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: February 02, 2006
Location: Minnesota, United States
Posted: December 17, 2008 at 10:11 PM / IP Logged  

So im thinking you already try this one!

 TACH WHITE  @ PCM, BLUE Plug Pin 49, See NOTE *1

NOTES
 NOTE *1 The PCM (Power Control Module) is located on the DRIVERS SIDE of the ENGINE.

lsondubz 
Copper - Posts: 193
Copper spacespace
Joined: September 20, 2005
Posted: December 18, 2008 at 4:06 PM / IP Logged  
There is a large loom that runs from the firewall on driver side into the PCM thats bolted to the drivers side of the motor, if you open the loom the white wire is usually right there on top, very easy...

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