Difference between revisions of "2004 Trailblazer LT 4.2L L6"

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*http://forums.trailvoy.com/showthread.php?t=62398
 
*http://forums.trailvoy.com/showthread.php?t=62398
  
=bla=
+
=Putting an AMP in=
 
*http://forums.trailvoy.com/articles.php?do=viewarticle&artid=39
 
*http://forums.trailvoy.com/articles.php?do=viewarticle&artid=39
  
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*http://forums.trailvoy.com/showthread.php?p=844149#post844149
 
*http://forums.trailvoy.com/showthread.php?p=844149#post844149
 
*http://forums.trailvoy.com/articles.php?do=viewarticle&artid=91
 
*http://forums.trailvoy.com/articles.php?do=viewarticle&artid=91
 +
 +
=Blower Motor Resistor=
 +
*http://forums.trailvoy.com/showthread.php?t=32751
 +
=Recalibrate Vent Actuators=
 +
*Disconnect the Battery for a while
 +
*Make sure all vent stuff is off
 +
*Turn car on, let sit for 60 seconds at least
 +
or
 +
*turn vent stuff off
 +
*pull fuses under rear seat
 +
*http://forums.trailvoy.com/showthread.php?t=42965
 +
<pre>
 +
36 HVAC B
 +
39 HVAC 1
 +
44 HVAC
 +
</pre>
 +
Start car, leave on for one min.

Revision as of 09:21, 4 November 2014

Sensor Locations

  • for now:
  1. wait for your car to be "cold" or 4 hours. Disconnect the hose from check valve (located passenger side--the transmission dip stick is attached to the bolts that hold it to the block). Start the truck, you should hear a nasty sound for about 30 seconds to a minute. If you don't its your check valve.
  2. If it is your check valve, you can try to clean it. Get some throttle body cleaner, remove the check valve spray thouroughly (I did it a couple of times to get all the carbon and rust out) and let dry reinstall and follow above instructions. If no go replace check valve
  1. wait for your car to be "cold" or 4 hours. remove the fattest hose from the underside of air intake hose (I think thats where it is, I have a CAI so Its hard to know where it is exactly OEM) and from the check valve. Have someone else start the truck. Feel the hoses, you should feel sucking and blowing (I can't remember which is supposed to blow / suck) If you don't feel anything then its the pump (maybe -- read further)
  2. check fuses there are about 3 in the manual listed for air pump (if bad fuse replace and retest, make sure to check the fuses after to make sure that the pump isnt blowing fuses)
  3. Locate the air pump its driver side mid car just behind the cross member for the frame. There are two wiring harnesess one that goes into the relay (grey box) and one that has two fat wires (thats the power plug for the pump.) disconnect that one, wait for cold start and start truck while having a multimeter attached set on DC mode. If you get a reading of 0 then replace the relay. if you get power 12-15 volts replace the motor.
  4. If both the check valve and the pump are testing out ok it could be a clogged hose.

Camshaft Position Actuator Solenoid Cleaning

Putting an AMP in

Throttle Body

Blower Motor Resistor

Recalibrate Vent Actuators

  • Disconnect the Battery for a while
  • Make sure all vent stuff is off
  • Turn car on, let sit for 60 seconds at least

or

36 HVAC B
39 HVAC 1
44 HVAC

Start car, leave on for one min.