Subaru Oil Consumption Problems

Subaru Oil Consumption Repair Most Subaru owners are aware of the infamous headgasket problem. Along with frequent questions and concerns from customers about Subaru headgasket problems I have also had a lot of oil consumption complaints and concerns from my customers. Over the years of rebuilding and repairing these engines I have noticed a common failure that is consistent with… Read More

Subaru Timing Belt Replacement Tips & Advice

Subaru Timing Belt Facts Subaru 2.5 DOHC and SOHC are interference engines Subaru timing belts are due for replacement at 105K Oil will shorten the life of your timing belt The water pump should be replaced with the timing belt When replacing the timing belt on a Subaru 2.5L SOHC or DOHC motors there are a few common things to… Read More

Subaru Control Arm Bushing Repair

The newer Subaru models changed the type of lower control arms that was used for year in the early legacy’s and up to 1999 or 2000 Legacy Outback’s. Both suspension types are fine but these newer ones are having control arm bushing failure. Don’t be fooled into replacing the control arm just because the bushing is bad. The reason I… Read More

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

Volkswagen Golf TDI No Power

Even though I’m not a diesel mechanic doesn’t mean I cannot fix diesels. I do have a very good understanding of how they work and actually worked for a diesel repair shop for a while. I just got out of it because I don’t like all the greasy grimy heavy lifting work involved with diesel repair. Now a VW TDI… 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

Basic Automotive Cooling System Operation

A tremendous amount of heat is generated in engines used in todays vehicles. A gasoline engine’s combustion chamber can reach temperatures above 2500°F. Approximately a third of the combustion heat is actually used to power the vehicle; another third passes through the exhaust; and the last third is the responsibility of the cooling system. The heat has to be reduced… Read More

How to Check Your Vehicles Battery

Basic Automotive Battery Terminology An automotive battery is a rechargeable SLI or starting, lighting, and ignition battery. It is a 12 volt battery made of 6 cells connected in series. Each of the 6 cells produces 2.1 volts and wiring these cells in series produces the 12.6 volts required by the automotive electrical system. The batteries current capacity ratings are… Read More

Ignition System Diagnosis

The ignition system is designed to convert battery voltage into the high voltage required to ignite the air/fuel charge in the cylinders. There are two basic types of ignition systems as defined by SAE: Electronic Ignition (EI) and Distributor Ignition (DI). Although both types are electronic, SAE assigned the term ‘Electronic Ignition’ exclusively to distributorless designs. In contrast, Distributor Ignition… Read More

Subaru P0420 Catalyst Efficency

There are two DTCs present – P0325 for Knock Sensor 1 Circuit, and P0420 Catalyst Efficiency Below Threshold (Bank 1). The knock sensor DTC was a straight forward diagnosis. The pigtail for the sensor was damaged. The Catalyst Efficiency DTC is another matter. The part is very expensive and the net result to the customer of replacing it in this… Read More