Filed Under (Chevrolet) by admin on 25-06-2010
Some customers whose vehicles are operated in dusty type environments, such as farming or mining off-road type applications, may comment about the illumination of the check engine light, with a DTC of P0446 (Restricted/Blocked EVAP Vent Path) being set. Cause Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition. Correction (1999-2007 Classic/Old Style Models) After following the published SI diagnostics for P0446 and determining that the EVAP canister vent valve is the cause of the MIL light, replace the existing EVAP canister vent valve assembly with a new assembly. This new assembly is a sealed unit that is designed to be vented through a remote filter box. To ensure correct installation, follow the procedures below.
Filed Under (Chevrolet) by admin on 22-10-2010
1. Remove the fuel tank. 2. Disconnect the evaporative emission (EVAP) line (3) from the canister.3. Reposition the EVAP canister hose clamp. 4. Remove the EVAP canister hose. 5. Disconnect the canister EVAP line from the fuel sender. 6. Squeeze the small retainer in front of the canister in order to disengage the canister. 7. Remove the EVAP canister. Installation Procedure Notice: Do not attempt to straighten kinked nylon pipes. Replace any kinked nylon pipes in order to prevent damage to the vehicle. Do not attempt to repair sections of nylon pipes. Replace damaged nylon pipes. Replace the vapor pipes with original equipment or parts that meet GM specifications. Replace the vapor hoses with original equipment or parts meeting GM specifications. Use only reinforced fuel-resistant hose identified with the word Fluoroelastomers or GM 6163M on the hose. 1. Install the EVAP canister. 2. Squeeze the small retainer in front of the canister in order to engage the canister. 3. Connect the canister EVAP line to the fuel sender. 4. Install the EVAP canister hose. 5. Position the EVAP canister hose clamp. 6. Connect the EVAP line (3) to the canister. 7. Install the fuel tank.
Filed Under (Chevrolet) by admin on 28-08-2010
REMOVAL PROCEDURE 1. Drain the engine coolant. 2. Using the J 43181 disconnect the inlet heater hose from the heater core. 2.1. Install the J 43181 to the heater core pipe. 2.2. Close the tool around the heater core pipe. 2.3. Firmly pull the tool into the quick connect end of the heater hose. 2.4. Firmly grasp the heater hose. Pull the heater hose forward in order to disengage the inlet hose from the heater core. 3. Using the J 43181 disconnect the surge tank outlet hose from the heater core. 3.1. Install the J 43181 to the heater core pipe. 3.2. Close the tool around the heater core pipe. 3.3. Firmly pull the tool into the quick connect end of the heater hose. 3.4. Firmly grasp the heater hose. Pull the heater hose forward in order to disengage the surge tank outlet hose from the heater core. 4. Remove the accumulator. 5. Remove the instrument panel carrier. 6. Remove the HVAC module drain hose. 7. Disconnect the electrical harnesses and the ground connections from the HVAC module. 8. Remove the nuts (4) from the HVAC module (2). 9. Remove the bolts (3) from the HVAC module (2). 10. Remove the HVAC module (2) from the vehicle (1). INSTALLATION PROCEDURE
Filed Under (Subaru) by admin on 04-01-2011
cooler Hose replacement Procedure 1) Place vehicle on lift. 2) Remove the engine under cover. Hose clamp location 3) Squeeze the hose clamps and reposition to remove the hose. Confirm the direction and angle of the original hose clamps before removal. It is important to reinstall clamps in their original position. 4) Place a drain pan under the hose to collect any CVTF which may leak out. caution: if the cVtF has spilled onto the exhaust pipe or body frame, wipe it off with a rag to avoid dripping fluid. 5) Remove the inlet cooler hose. Note: Be extremely careful not to damage the pipe. 6) Make sure the cooler hose pipe ends are clean prior to installing a new hose. 7) Install a new hose reusing the original hose clamps. Note: Do not permit the end of the hose to extend past the raised lip section of the pipe. Be sure to place the hose clamps in their original position. If the original hose clamps are damaged or deformed, replace as necessary. note: Neither replenishment of transmission fluid nor inspection of fluid level will be neces- sary during replacement of the hose unless the original hose was found to be leaking fluid. Approx. 50cc through 70cc of fluid may be lost during hose replacement. The amount of fluid remaining will still keep the necessary level with sufficient reserve margin. check and add cVtF cAution: • CVTF level changes along with CVTF temperature. When inspecting CVTF level, observe the specified CVTF temperature. • Always use specified CVTF or equivalent. Using other fluid except for specified or equivalent will cause malfunction.
Filed Under (Ford) by admin on 24-02-2011
Drive Cycle Recommendations NOTE: The following procedure is designed to execute and complete the evaporative emission repair verification drive cycle and to clear the Ford P1000, inspection and maintenance (I/M) readiness code. When the ambient air temperature is below 4.4°C (40° or above 37.8° (100° or the altitude is above 2,438 meters (8,000 feet), the EVAP monitor will not run. If the F) C F), P1000 must be cleared in these conditions, the powertrain control module (PCM) must detect them once (twice on some applications) before the EVAP monitor can be bypassed and the P1000 cleared. The EVAP bypassing procedure is described in the following drive cycle. 1. Most OBD II monitors will complete more readily using a steady foot driving style during cruise or acceleration modes. Operating the throttle in a smooth fashion will minimize the time necessary for monitor completion. 2. Fuel tank level should be between one-half and three-quarters full with three-quarters full being the most desirable. 3. The evaporative monitor can only operate during the first 30 minutes of engine operation. When executing the procedure for this monitor, stay in part throttle mode and drive in a smooth fashion to minimize fuel slosh. Drive Cycle Preparation NOTE: For best results, follow each of the following steps as accurately as possible. 4. NOTE: This step bypasses the engine soak timer and resets OBD II monitor status. Install the scan tool. Turn the key ON with the engine OFF. Cycle the key off, then on. Select the appropriate vehicle and engine qualifier. Clear all diagnostic trouble codes (DTCs) and carry out a PCM reset. 5. Begin to monitor the following PIDs: ECT, EVAPDC, FLI (if available) and TP MODE. Press Diagnostic Data Link, PCM, PID/Data monitor and record, press trigger to select each PID, then start. 6. Start the engine without returning the key to the OFF position. Preparation for Monitor Entry WARNING: Strict observance of posted speed limits and attention to driving conditions are mandatory when proceeding through the following drive cycle. 7. NOTE: This step allows engine warm-up and provides intake air temperature (IAT) input to the PCM. Idle the vehicle for 15 seconds. Drive at 64 km/h (40 mph) until the ECT is at least 76.7° (170° C F). 8. Is IAT above 4.4° (40°F) and below 37.8°C (100° C F)? If not, continue with the following steps but note that the EVAP Monitor Bypass portion of the drive cycle (step 13) will be required to bypass the EVAP monitor and clear the P1000. 9. NOTE: This step executes the heated oxygen sensor (HO2S) monitor. Cruise at 64 km/h (40 mph) for 60 seconds. 10. NOTE: This executes the EVAP monitor if IAT is above 4.4°C (40° and below 37.8° (100°F). F) C NOTE: To initiate the monitor, TP MODE should equal PT, EVAPDC must be greater than 75%, and FLI must be between 15 and 85%. NOTE: Avoid sharp turns and hills. Cruise at 72 to 104 km/h (45 to 65 mph) for 10 minutes. 11. NOTE: This step executes the ISC portion of the Secondary Air/CCM. Bring the vehicle to a stop. Idle with the transmission in DRIVE (for automatic transmission) or NEUTRAL (for manual transmission) for two minutes. Pending Code and EVAP Monitor Bypass Check 12. NOTE: This determines if a pending code is preventing the clearing of P1000. NOTE: If the EVAP monitor is not complete and IAT was below 4.4° (40° or above 37.8° (100°F) temperature range in Step 8, or the altitude is above 2,438 meters (8,000 feet), C F) C the EVAP Monitor Bypass (Step 13) must be carried out. Using the scan tool, check for pending codes. Conduct normal repair procedures for any pending code concerns. Rerun any incomplete monitor. EVAP Monitor Bypass 13. NOTE: This allows the bypass counter to increment to two. NOTE: Do not repeat Step 4. Park the vehicle for a minimum of eight hours. Repeat Steps 5 through 12.