Subject: Noise Coming From Instrument Panel Cluster (Replace Instrument Panel Cluster (IPC)) Attention: Appropriate repair is based on vehicle build date. Use GMVIS to determine the vehicle build date. This bulletin is being revised to add model years and provide important repair information. Please discard Corporate Bulletin Number 04-08-49-015 (Section 08 — Body and Accessories).
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The Instrument Cluster contains sensitive electronic components. Great care should be taken when working around or handling electronic components. Avoid touching components on a circuit board directly. Static shock could damage these components. Avoid working in areas that can create excessive static shock such as carpeted rooms.
1. First disconnect the Negative (-) Battery Terminal and apply the Emergency Brake.
2. Remove the instrument cluster trim by the following steps.
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1990-1993 Wiring Chart Circuit LG/W GY/W R/W R/Y P/W LB R/Y GY BK/LB, PK/LG BK/Y T/Y Not Used LB/R BK Circuit Function Left Turn Indicator Hi Beam Indicator Coolant Temperature Sender Feed 12V Input1 Check Brake Indicator Feed Low Coolant Indicator Feed 12V Input1 Check Oil Indicator Feed Malfunction Indicator Lamp (MIL) Feed Air Bag Indicator Tachometer Feed Not Used Illumination Feed Ground Pin Number Circuit Not Used R/LG Not Used Not Used Not Used Not Used R/Y W/R BK Y/W LB/R W/LB DG/LG LG/R Circuit Function Not Used Ignition Switch Not Used Not Used Not Used Not Used 12V Input1 Oil Pressure Gauge Feed Ground Fuel Gauge Feed Illumination Feed Right Turn Indicator Fasten Belts Indicator Battery Indicator Feed
Match to same colors as the 1987-1989 harness.
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This manual contains dismantling data for the following vehicles: MODEL YEAR MAKE MODEL VARIANT ENGINE TRANSMISSION 2007 Chevrolet Trailblazer 4×4 4.2L L6 4L60E
Provide additional support when a vehicle is on a hoist in the following ways:
• Before removing parts, support the opposite end. This helps prevent the vehicle from slipping off.
• Before removing major components, chain the vehicle frame to the hoist pads at the same end as the removal. This helps avoid a tip-off. Read the rest of this entry »

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Subject: Radio With Six Disc CD Changer Does Not Recognize Loaded CD And Displays An “INITIALIZING” Message, CD Will Not Play, CD Cannot Be Ejected, Or Disc Icon Does Not Illuminate (Reprogram Radio)
Models:
2005-2006 Chevrolet Avalanche, Suburban, Tahoe
2005-2007 Chevrolet Colorado, Express, Silverado Classic, TrailBlazer
2005-2006 GMC Yukon, Yukon XL
2005-2007 GMC Canyon, Envoy, Savana, Sierra Classic
2005-2006 HUMMER H2 with Six Disc CD Changer Equipped Audio System (RPO UC6)
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WIRING INFORMATION: 2002 Chevy Trailblazer WIRE WIRE COLOR WIRE LOCATION 12V CONSTANT WIRE RED and RED/WHITE Ignition Harness STARTER WIRE YELLOW Ignition Harness IGNITION WIRE PINK Ignition Harness SECOND IGNITION WIRE WHITE Ignition Harness ACCESSORY WIRE ORANGE Ignition Harness SECOND ACCESSORY WIRE BROWN Ignition Harness KEYSENSE WIRE (-) LT.GREEN Ignition Harness POWER DOOR LOCK On these vehicles, door locks are controlled by a data bus system. This requires interfacing the door locks in several locations (each of the front doors, the rear hatch, and the fuse box under POWER DOOR UNLOCK the rear seat) or using a databus interface module Read the rest of this entry »

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2004 BODY & ACCESSORIES Body System – Exterior – Freestar Remove:
1. Remove the front door trim panel. For additional information, Refer to FRONT DOOR TRIM PANEL .
2. Position the watershield aside.
3. Remove the parts in the order indicated in the following illustration and table.
4. To install, reverse the removal procedure.
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Installation Instructions for: Part Number 21-472 2002-2004 Subaru Impreza RS 2.5L 2003-2004 Subaru Impreza TS 2.5L 2003-2004 Subaru Outback Sport 2.5L.
The AEM Cold Air System is the result of extensive development on a wide variety of cars.
Each system is engineered for the particular application. The AEM Cold Air System differs from
all others in several ways. We take the inlet air from outside of the engine compartment where
the inlet air is considerably cooler than the hot under hood air. The cooler inlet air temperature
translates to more power during the combustion process because cool air is denser than warm
air. AEM has conducted extensive inlet air temperature studies and we have seen temperature
reductions of up to 50 degrees by pulling air from outside of the engine compartment. The air
mass flow to the engine is increased because of the increased airflow and reduced inlet
temperature, which translates to more power. The AEM Cold Air Systems come with complete
instructions for ease of installation.
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1. Temporarily remove the grille and permanently remove the airdam. 2. Disconnect the fog lamp wiring if applicable and then remove the plastic bumper cover from the bumper. 3. Remove the bolts that attach the bumper from the end of the frame rails. 4. Install the hanger plates (Ref 7 & 8). Note: On the drivers side make sure not to pinch the power steering hoses and airbag sensor wire. The top plate on the rear of the hanger plate must install above the hoses. Loosely install the u-bolt (Ref 6) with washers (Ref 11) and nuts (Ref 13) thru the top rear plate and use the bumper bolt temporarily to hold the front of the hanger plate in position. Finger tighten the fasteners until all undercarriage parts are in place. 5. Install the pushbeam (Ref 1) square with the bottom of the hanger plates and secure with bolts (Ref 12), Read the rest of this entry »

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Removing original inlet hose intact (can be reused)
1. Follow factory service manual for intake manifold removal.
2. Remove original inlet hose.
3. Install PERRIN inlet hose.
4. Re-install intake manifold in reverse order.
5. See instruction on page (2) for hose connections and routing to the PERRIN inlet hose.
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