Honda Automatic Transmission Failure

Honda AT transmissions are common to have failure and I have rebuilt many of these over the years. Most transmissions have a pan you can remove and service the filter, which is a common service at around 30K to maybe 60K depending on the manufacturer and type of fluid ran in the transmission. Honda automatic transmissions have a closed case… Read More

Brake Proportioning Valve Operation

The proportioning valve is installed on vehicles with front disc rear drum braking systems. It is installed in the hydraulic line leading to the rear drum brakes and helps prevent rear wheel lock up. Many proportioning valves are mounted directly in the master cylinder outlet to the rear brakes. They provide balanced braking during panic braking situations or when the… Read More

About Your Vehicles Tires

MDH Motors Does Not Sell Tires – We Help You To Maintain Vehicle Safety by Education and Vehicle Maintenance This grading system, known as the Uniform Tire Quality Grading System (UTQGS), allows consumers to compare tire tread wear, traction performance, and temperature resistance. The federal government requires tire manufacturers to grade their tires in these three areas and place the… Read More

Subaru Headgasket Failure

Subaru head gasket failure Two types of engines, two types of problemsThis site contains  information and hopefully some helpful explanations regarding head gasket problems with Subaru 2.5 liter normally aspirated (non turbo) engines. There are two types of engines, Phase 1 and Phase 2. Both variants can have head gasket problems associated with them, but the problems, how to diagnose… Read More

Cooling System Problems?

Check engine light on, thermostat/coolant temperature sensor failure Tutorial: Thermostat Assembly Replacement Vehicle: 2004 Audi A-4 Quattro 1.8L Turbo   This vehicle has no drivability concerns at all. the check engine light is on with the codes displayed above. CTS (coolant temperature sensor) signal values are within range in relevance to the ambient temperature. The reason for the diagnostic trouble… Read More

When to change your engine oil

When is my Oil Change really due? When asked, you may hear answers such as every 3000, 5000 or 7500 miles, or when the vehicle’s oil monitor indicates that this service is necessary. It is no wonder consumers are confused. The simplest answer… well, there is no simple answer! In fact, there is no interval that applies to most vehicles.… Read More

Preventative Maintenance

What Will Preventative Maintenance Do For Me? Help improve fuel economy Help your vehicle deliver peak performance at any age Find minor problems early to avoid major malfunctions later Reveal cracks, frays, leaks and bulges in belts and hoses Ensure that oil, radiator, battery, power steering, brake and automatic transmission fluids are checked, changed and filled to recommended levels Helps your… Read More

Cabin Air Filter, Why and When To Replace?

Automotive cabin air filters  How often do you change your cabin air filter? The cabin air filter is typically a pleated-paper filter that is placed in the outside-air intake for the vehicle’s passenger compartment. Some of these filters are rectangular and similar in shape to the combustion air filter. Others are uniquely shaped to fit the available space of particular… Read More

Automotive Electrical System Testing

Automotive Electrical System Testing                 This tutorial is going to be on basic automotive electrical system AVR tests.  AVR stands for Amps, Voltage and Resistance. When performing an electrical system diagnosis it will be broken down into three main systems. Your starting system, charging system and capacacity “battery”. NAVAGATION:  Battery  Testing Charging System Starting System Parasitic Draw Testing Insulated Circuit Testing(volt… Read More

Battery Cable Repair

How To Repair A Battery Cable When repairing a battery cable it is best to remove the cable from the vehicle. If you have the battery lug crimper you can perform an on vehicle service which in some situations can be very helpful. This tutorial will show you a way to do the repair without a battery lug crimper, but… Read More