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2003-2006 Chevrolet Express Antilock Brake (ABS) Activation At Low Speeds (Clean Wheel Speed Sensor Mounting Surface)


Filed Under (Chevrolet) by admin on 25-01-2011

Condition Some customers may comment on ABS activation at low speeds, usually below 8 km/h (5 mph). Upon investigation, the technician will find no DTCs set. Cause The cause of this condition may be an increased air gap between the wheel speed sensor and the hub reluctor ring due to rust and debris built up on the sensor mounting surface. Correction Measure AC voltage and clean the wheel speed sensor mounting surfaces. 1. 2. 3. 4. Raise and support the vehicle. Disconnect both the front wheel speed sensor connectors at the frame and harness. Place a Digital Volt Meter (DVM) across the terminals of each wheel speed sensor connector. Rotate the wheel clockwise approximately one revolution per second. The minimum reading should be at least 350 ACmV’s. If the reading is less than 350 ACmV’s, remove the wheel speed sensor. 5. Plug the wheel speed sensor bore in order to prevent debris from falling into the hub during service. 6. Clean the wheel speed sensor mounting surface using a wire brush, sand paper, emery cloth, scotch brite, or other suitable material. Be sure to thoroughly clean the wheel speed sensor surface. There should be no rust or corrosion. 7. Check the sensor head to determine if it has been warped/distorted due to the corrosion build up or other causes. Check the mounting surface on the sensor head for flatness by placing it on the edge of a metal machinists scale or other suitable straight edge to measure the flatness. Check the sensor for flatness in multiple (minimum 3) positions/directions. If the sensor head is distorted, replace the sensor. 8. Apply (spray) two thin coats of the specified rust penetrating lubricant (corrosion inhibitor) to the complete sensor mounting surface on the bearing hub. Allow to dry for 3-5 minutes between coats. Use ONLY Rust Penetrating Lubricant, P/N 89022217 (in Canada, P/N 89022218). 9. When the corrosion inhibitor is dry to the touch (about 10 minutes), apply a thin layer of bearing grease to the hub surface and sensor O-ring prior to sensor installation. Use ONLY Wheel Bearing Lubricant, P/N 01051344 (in Canada, P/N 993037). 10.Install either the original sensor or a new one in the hub. Ensure that the sensor is seated flush against the hub. Refer to the applicable Wheel Speed Sensor Replacement procedure in the ABS sub-section of the Service Manual. 11.Place the DVM across the sensor terminals and recheck the voltage while rotating the wheel. The voltage should now read at least 350 ACmV’s.

2004-2007 Buick Rainier SES Light Due to DTCs P0105, P0106, and/or P0506 – Clean Throttle Body


Filed Under (Buick) by admin on 24-12-2010

#PIP4015: SES Light Due To DTCs P0105 P0106 And/Or P0506 – Clean Throttle Body – keywords body clean code codes deceleration DTC engine erratic idle intermittent low PCM plate surge unstable 2004-2007 Buick Rainier 2002-2007 Chevrolet TrailBlazer 2004-2007 Chevrolet Colorado 2002-2007 GMC Envoy 2004-2007 GMC Canyon 2002-2004 Oldsmobile Bravada 2006-2007 HUMMER H3 2005-2007 Saab 9-7X Condition/Concern: On rare occasions, a SES light may be experienced due to DTCs P0105, P0106, and/or P0506. There may or may not be an idle complaint accompanying the SES light. This may be due to excessive carbon build up in the throttle body. Recommendation/Instructions: If the SI diagnostics do not isolate a cause for this concern, clean the throttle body bore and plate for evaluation.

OPEL IMMO Reader serve to read immo code on OPEL cars


Filed Under (Opel) by admin on 02-04-2010

1. Connects via USB to PC
2. Immo1 & Immo2 supported up to year 2004
3. Read Login code
4. Programm new keys
5. Read and erase error codes of IMMO
Reading of PIN for immo1 works only if pin code already have been entered sometimes before
Reading of PIN code for immo2 is not possible by OBD

2003 Buick Century Engine Oil and Oil Filter Replacement Removal Procedure


Filed Under (Buick) by admin on 15-12-2010

1. 2. 3. 4. 5. Raise and support the vehicle. Refer to Vehicle Lifting. Position the oil drain pan under the engine oil drain plug. Remove the engine oil drain plug. Clean and inspect the engine oil drain plug, repair or replace if necessary. Clean and inspect the engine oil drain plug sealing surface on the oil pan, repair or replace oil pan if necessary. 6. Remove the oil filter. 7. Clean and inspect the oil filter sealing area on the engine block, repair or replace if necessary. Installation Procedure 1. Lightly oil the replacement oil filter gasket with clean oil and install the new oil filter. Notice: Refer to Fastener Notice in Service Precautions. 2. Install the new oil filter. Tighten the new oil filter to 3/4 to 1 full turn, after the oil filter gasket contacts the oil filter mounting surface. 3. Install the engine oil drain plug. Tighten the plug to 30 Nm (22 ft. lbs.) . 4. 5. 6. 7. 8. 9. Remove the oil drain pan. Lower the vehicle. Fill the engine with new engine oil. Start the engine. Inspect for oil leaks after engine start up. Turn off the engine and allow the oil a few minutes to drain back into the oil pan. Remove the oil level indicator from the oil level indicator tube. Clean off the indicator end of the oil level indicator with a clean paper towel or cloth. Install the oil level indicator into the oil level indicator tube until the oil level indicator handle contacts the top of the oil level indicator tube. Again, remove the oil level indicator from the oil level indicator tube keeping the tip of the oil level indicator down. Check the level of the engine oil on the oil level indicator. If necessary, adjust the oil level by adding or draining the engine oil. 10. 11. 12. 13. 14. 15.

Mitsubishi Pajero EGR Modification


Filed Under (Mitsubishi) by admin on 18-12-2010

If you plan to have ago yourself, first read the wise words of our fellow members further on (the photos below show the EGR valve in a 2.5TD engine! shouldn’t be much different in a 2.8TD): Here it goes: Before you start, it makes it easier if you remove the small pipe going into the top of the EGR valve and the AutoTrans. dipstick out of the way 1- unbolt the two bolts (size 12) facing the auto trans dipstick (Photo 1) 2- Once loose use one hand to completely unbolt, … use the other hand to stop the metal gasket falling of behind the EGR valve! (Photo 2) 3- Once the long bolts are out, remove (slide) the metal gasket out and give it a clean (Photo 3) * If you want to remove the valve completely and give it a good clean, then you need to unbolt two more bolts below the valve… not impossible but it takes more time (which I didn’t have) so I left those untouched… there is enough gap between the EGR valve and the inlet to do the job! 4- Have a drink (mine was Pepsi )… using the metal gasket outlines on a piece of paper, creat your blocking metal sheet (Photos 4 & 5) 5- Wrap a clean cloth around a long thin screwdriver and give the “gap” between the valve and the inlet a good clean… lots of black tar there! 6- Place the blocking metal and the original gasket in the gap! (Photo 6) 7- Bolt and place the autotrans dipstick & valve pipe back!