10 Signs The Harmonic Dampener Has Failed Or Is Close To Failing
One sign is incorrect timing marks. If the outer ring has separated from the inner ring, the timing marks will move. This can been seen when comparing the timing marks on the valvetrain.
Brake Service Case Study: Nissan Frontier
Bob Dowie looks at some of the undercar issues he has faced with Nissan vehicles over the years and discusses how to deal with some common issues you may see with them.
Parasitic Drain: Jeep Grand Cherokee
As a general rule, a “parasitic drain” of less than 30 milliamps (mA) is normal for most vehicles 15 years old and newer. Keeping in mind that most manufacturers now publish parasitic drain values, let’s assume that a battery drain exceeding 50 mA is cause for concern.
Ford F-250: Check Engine Light, Code P0191
It’s OK to admit when you are stumped working on check engine light issues on F250s. You might not have figured out that the faulty powertrain control module caused fuel pressure to increase, which caused the engine to flood and the code P0191 to set.
Worn Wheel Hub Bearing Symptoms
Driving conditions and installation practices can damage a worn hub. These symptoms often indicate wheel bearing damage.
Spotting Bent Suspension Components
Normal driving usually won’t knock the wheels out of alignment or damage the suspension. However, normal driving also involves encounters with the unexpected, which often include potholes, curbs, railroad crossings (which are famous for being rough), parking lot speed bumps and other things that jar and stress the suspension.
Mercedes-Benz: Axle Hub Vibration And Judder From Corrosion
It is imperative that when installing brake discs (front or rear) that any excessive corrosion/scaling which may have developed on the axle hub be removed.
Brake Pad Wear Sensors
Brake pad wear sensors have been around for more than 40 years. But in the past decade, they have evolved so that brake wear can be estimated. This has allowed the driver to pick the right time to have their brake pads replaced.
Brake Pads: Delaminated Pads Are Dangerous
Both field and laboratory test results repeatedly prove that the friction lining on a disc brake pad can wear to within a millimeter of the mating surface of the disc brake shoe without affecting brake function, provided the entire surface area of the friction lining material remains intact during contact with the rotor.
Rebuilding An American ‘Iron’ Icon: The Ford ‘FE’
Adapted from Robert McDonald’s article in Engine Builder. It seems as though the car restoration market is in full swing. Anybody who has an appreciation for an automobile can tell you that it’s all about American Iron. The phrase American Iron came about because we as Americans loved big automobiles with big engines. There is
TPMS: Decoding The TPMS Wireless Sensor
In order to properly service a tire pressure monitoring system (TPMS), you must first understand the functionality of the system’s wireless signal. Unfortunately, there is a lot of misinformation out there about the TPMS wireless signal, which could get in the way of your Âdiagnostics and your ability to sell TPMS service. For example, Googling
Catching Clutch Slipping Problems – Four Areas That Could Be The Culprit
Once a clutch starts to slip while engaged, its lifespan will be very short. Slipping Âincreases wear; slipping also generates heat that increases the wear on the disc and causes the friction material to glaze and crack. It all happens very quickly. The real tragedy is when it happens to a newly installed clutch. Here
