Start Solving Transmission Electronic Control Problems
Troubleshooting an automatic transmission can be one of the most intimidating diagnostic procedures at a shop. The first reaction is typically, “We don’t do that type of work.” But there is profit in performing drivetrain diagnostics and “in-the-car” repairs.
ASE A1 Test Prep: Cylinder Heads and Gaskets
Passing the ASE A1 can be difficult. Do not go into this test with the notion that this is an exam for engine rebuilders. Many of the tasks in the A1 task list are required every day at a general repair shop for top-end engine repairs. Here are some tips.
Air Filter Fuel Trim Diagnostics
The modern engine measures two things extremely well, the amount of air going into the combustion chamber with the mass airflow sensor (MAF), and the byproducts that are generated by the combustion event with the oxygen sensor. These measurements allow the engine’s computer to put the right amount of fuel and spark into the cylinder to give the most efficient and cleanest combustion event.
Secret Diagnostic Trick: Hint? You Are Doing it Right Now
I was fortunate to have been raised in my father’s auto shop. From the early age of 11, I could be found performing various tasks around the shop from cleaning to observing and helping the technicians whenever an opportunity would arise. I now have my own one-man auto repair facility where I am the only person involved with the repair process of the vehicle. This mandates me making the most efficient use of my time. So, over the next several articles, it is my plan to share with you some of my time-saving diagnostic strategies.
Why A Clean Fuel Tank Is Important For A Fuel Pump’s Diet
Fuel pump replacement comebacks can be costly and can hurt your reputation. One of the leading causes of failure is the tank. If a vehicle gets 20 miles to the gallon, then more than 5,000 gallons of gas (from many stations) will go through the tank in 100,000 miles. During this time, sediment, rust and debris from the pump can find its way into the tank. Removing all contaminates is critical.
Nissan VQ35-Series Water Pump: Chain-Driven Water Pump Replacement
At the top of the list for the most difficult water pumps to replace is the Nissan VQ-Series V6 engines. The pump is turned by the timing chain and is nestled in the engine block. This can make for a very difficult job no matter if the engine is mounted transversely or longitudinally. The VQ35-series of engines can be found in 2001-current Nissans and Infinitis. Book time on this job can range from 2- to 3.0-hours depending on the model and layout. There are no shortcuts.
Not All Motor Oil Is Up To Snuff, Says The American Petroleum Institute
The American Petroleum Institute (API) has evaluated results from its annual motor oil testing program and determined that almost one in five samples of bulk motor oil purchased from the marketplace in each of the past five years have failed to meet API motor oil performance standards.
Tech Tip: Adjustable Clutch Master Cylinders
Following a new clutch installation, there is nothing worse than experiencing slipping or release problems. Many times installers even begin to believe that the new clutch kit is defective. This is not correct, in most cases! The majority of the time, a simple, quick adjustment will alleviate any problems. Most Japanese/Korean imports utilize an adjustable clutch master cylinder. When a new clutch kit is installed, the master cylinder needs to be re-adjusted to work properly with this new kit and avoid release and slipping problems.
Gonzo’s Toolbox: Lost In The Owner’s Manual
Hardly a day goes by when I’m not changing oil in a car. It’s a simple task to perform, but, today, you must also reset the oil reminder system. The procedure varies from model to model and year to year. Sometimes, I figure that since I’m right there by the car, I might as well find the owner’s manual and look up the procedure myself. But, for some reason, not one manufacturer can come up with a method of putting the information in one convenient spot.
Tech Feature: Can You Lift It?
You can only make a few mistakes with a lift before it costs more than the lesson is worth. What you don’t know can hurt you if you are using or even buying a lift. The first thing any tech must do is to know what they are lifting. If possible, look at the sticker on the door jam to find out the weight of the vehicle and distribution. But never take this number for granted. Look inside the vehicle to see what the driver is carrying and where the weight is situated ….