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The Why, Where, When of TPMS Sensors

To understand any TPMS relearn procedure, you have to understand this: Sensors only transmit, they do not receive. No vehicle asks a sensor for information on how it is doing. I know you’re thinking a sensor does receive signals when the vehicle...

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Since the 2000 model year, GM has offered electronically adjustable suspension as an option on Chevy, Cadillac and GMC full-size trucks. The system actuates the valving in the shocks to control ­suspension position and body attitude. The electronic...

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Making Sense Of Steering Angle Sensor Input And Data

Measuring the­ ­position angle, rate of turn and force of the steering wheel is critical for Electronic Stability Control (ESC) systems. Scan tools call these Steering Angle Sensors (SAS) and typically display the information in degrees. The SAS...

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Internal Engine Oil Consumption Diagnostics

Due to the variables in engine design and ­operating conditions, internal engine oil ­consumption complaints are often the most difficult to solve. In some cases, oil consumption might be more severe under low-speed operation, in other cases, high-speed...

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Hyundai Fuel System, Emissions Diagnostics

Hyundai has done a good job of improving its ­offerings over the years from both an aesthetic and mechanical viewpoint. Complemented by a strong warranty and good value, the carmaker has been able to increase its market share year over year. If you aren’t...

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Curing Volvo Manual Transmission Rattle

In an effort to increase fuel efficiency, today’s engines produce more torque so they can be ­driven at extremely low rpm. ­Reduced viscosity engine and gearbox oils, less vehicle weight and improved aerodynamics also contribute to better fuel economy....

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Victor’s Cash Back Program Makes Select Welders and Plasma Cutters More Affordable

Victor Technologies has launched its Cash Back Rebate program for customers in the United States and Canada. Between July 1 and Dec. 31, 2014, purchasers of select Tweco and Victor Thermal Dynamics systems can receive between $50 and $450 cash back....

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AVI To Provide Technicians with $1 Million in Free Training

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GearWrench Launches Street Team, a New Mobile Driver Program

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If a 1995-2000 Dodge Neon 2.0L won’t start, and it has no spark, but has injector pulse, the problem could be that the dowel pin is snapped off in the cam causing it to be mechanically out of time even though the external belt timing marks are correct.

TEST & FIX
If after an extended crank, the scanner reads cam no and synchronization lost, inspect for a sheared cam dowel pin. With a dual trace scope, check the pattern of the cam and crank sensor to verify that patterns are in synchronization. If they are out of synchronization, loosen the cam bolt and slip the sprocket away from the cam a small amount to look for dowel pin protruding out of the cam into the sprocket. If no pin is seen, the dowel pin has been sheared and needs to be replaced. When the dowel pin is snapped off in the cam, it can be mechanically out of time even though the external belt timing marks are correct.

Note: When tightening the cam bolts, the sprocket needs to be held with a spanner wrench to avoid shearing the dowel pin.

Courtesy of Identifix.

For additional information on all the products offered by Identifix, visit www.identifix.com.

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