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Harmonic Dampeners: Why They Fail, What to Look For

Every time a cylinder fires, the crankshaft speeds up a very small amount for a short period of time. It is then slowed down as the next cylinder in the firing order compresses air and fuel for the next combustion event. The speeding up and slowing...

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Vehicles: All ABS-equipped vehicles Condition: Vehicle had wheel bearing hub replaced on one side. Repair Procedure: If you diagnose a bad hub bearing on one side of a vehicle and the ABS wheel speed sensor or tone ring is integral to the bearing,...

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I am starting to notice a trend when it comes to alignments. It’s not the vehicles that are changing, but rather the attitudes toward alignment services — and it happens at independent repair shops, franchise shops and even dealers. The alignment...

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Mazda: Performing Regular Undercar Maintenance

This month, we’ll take a look at brake and undercar service on the Mazda vehicle lineup, with the footnote that even though this type of work ­becomes routine when you have a preventive maintenance mindset, good work habits from beginning to end are...

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Import Automatic Transmission Diagnostics

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Honda: Vehicle Won’t Move or Barely Moves

A customer brings in a vehicle that won’t move forward, ­­backward or both. Check first to see if it grinds or clicks. And does the speedometer read a lot higher than you’re actually going? Chances are the driveshaft is disengaged. This can...

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iATN Exceeds 2 Million Forum Messages

The number of messages in the professional automotive discussion forums of the International Automotive Technicians Network (iATN) exceeded 2 million in early December 2014, with the Shop Management and Technical Discussion forums being the most popular...

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Diagnosing Starter Misses

Contributing writer Gary Goms was called to a friend’s shop to help with a no-cranking condition on a 2006 Chevy Tahoe. After diagnosing a faulty PCM ground, locating the missing ground proved to be problematic. Find out how Gary solves The Case...

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Snap-on Adds Diagnostic Calculator To Website

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Due to the unique bladder design of the 2001-’03 Prius fuel tank, it may be necessary to reset the fuel gauge inclination sensor if the combination meter has been replaced or the fuel level reading is determined to be inaccurate. Follow the procedure below to reset the fuel gauge inclination sensor.

Reset Procedure (See Fig. 1 and Fig. 2):


1. Park the vehicle on a level surface.

2. Turn the ignition switch to the “ON” position.

3. Place the odometer display into the “ODO” mode.

4. Turn off the ignition switch.

5. Depress and hold the “ODO/TRIP” button while turning the ignition switch to the “ON” position. Hold the ODO button for two seconds.

6. Release and press the ODO button three more times within five seconds:
Release-Press-Release-Press-Release-Press and Hold. Continue to hold the ODO button for at least five seconds until the leveling information is displayed on the odometer.

7. Release the button.

8. Depress and hold the “ODO/TRIP” button until the odometer display confirms that reset has begun (odometer reads “1”).

9. Once reset is complete, the odometer returns to normal.

10. Release the button.

11. Turn off the ignition.

Note: This procedure may take several attempts. If you are interrupted or make a mistake during any part of this process, you must start over from the beginning of the entire process. Each time you start again, remove the key from the ignition and wait at least five seconds.

Technical service bulletin courtesy of Mitchell 1.

For additional information, visit www.mitchell1.com.

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AutoCarePro Team

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