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How to put an actuator in a 2002 Trailblazer - 2002 Chevrolet TrailBlazer

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Lots of things can be called an actuator. Door lock Mirror adjust, overdrive, and 4 wheel drive to name just some. The door lock is the most common and it's held with one rivet near the bottom of the door and the new actuator will come with a new revit. With the door panel removed and you reached around and made sure that your on the right one drill or chisel out the old revit, pivit arond the actuator to get the wire unpluged, Look at the new one to see how it goes. unhook the lingage on an angle and slip in the new one. Not bad to do if your used to doing stuff with out watching your hands. ( sort of like under the covers at night ) Then you'll get it done fine. The other actuators you need to say whitch one, 4 wheel drive?

Posted on Nov 16, 2009

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SOURCE: 2002 trailblazer 4.2 4wd

beleive it or not changing the oil if dirty will solve this code, also found that connector gets oil in it and that also makes p1345 code turn on, open connector and look for oil in it,look at sensor and actuator plugs for oil,the main plug connector is the actuator plug it fills with oil and makes contact between pins setting p1345 code, hope this helps.

Posted on Jun 17, 2010

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The 4 wheel drive on a 2002 trailblazer will not engage, replaced the actuator


we had this same problem n a Sonoma pu.we had to hook up a manual control on the cable that goes to the actuator,it was a simple bolt and nut system that u pull out and tighten with the nut ,it works and your inside controls still disingage the transfer case.

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2002 trailblazer has four loud clicking noise when i start it sounds like it is be hind 4wd selector switch?


#04-01-38-002A: Clicking Noise From Instrument Panel After Vehicle is Started (Replace Mode Valve Actuator Assembly Using Special Tool GE-47676) - SUPERSEDED BY BULLETIN 05-01-38-001A - (Oct 21, 2005) Mode Valve Actuator Replacement Tools RequiredGE-47676 Mode Actuator Removal Tool
Removal Procedure
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  2. Notice: Refer to Fastener Notice in the Preface section.
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  4. Tighten
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1 Answer

2002 trailblazer 4.2 4wd i have a code p1345 that keeps returning ive replaced the cam postion sensor and the crank sensor and the cam postion actuator solenoid i just put the cam position actuator...


beleive it or not changing the oil if dirty will solve this code, also found that connector gets oil in it and that also makes p1345 code turn on, open connector and look for oil in it,look at sensor and actuator plugs for oil,the main plug connector is the actuator plug it fills with oil and makes contact between pins setting p1345 code, hope this helps.

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