Modern Fuel Control Diagnostics: Sorting Through The Data Stream Maze
Adapted from Gary Gom’s article in ImportCar. When confronted with a fuel control problem on a modern vehicle, I’ll normally use short- and long-term fuel trims to determine if the problem is caused by one of many failures, such as a vacuum leak or a leaking fuel pressure Âregulator. If you’re like me, you’ll
Direct Injection And Carbon Deposits
In 1985, Saab began using the new Bosch LH fuel injection system, and Volvo and other carmakers followed suit. The system worked such that incoming air passed through an airflow meter that sent a signal to the engine ECU telling it how much air was going into the engine. The coolant temp sensor then told the ECU how cold or warm the Âengine was, and it opened and closed the injectors when needed.
Serpentine Belt Inspection Checklist
You might have only one chance to sell a customer a new serpentine belt. With belts lasting roughly 90,000 miles, proper inspection at the time of failure is critical not only for selling the belt, but also for ensuring add-on sales and better customer satisfaction.
Spark Plug Diagnostics
If you are replacing spark plugs to solve a misfire problem, you might want to take a look at the original plugs to make sure you are replacing them for the right reasons.
Former Mechanic Teaches Car Repair Basics To North Jersey Women
Former automotive technician Becca Ziobro, who is now a stay-at-home mom, offers an auto care class for women.
10 Things To Learn From Oil Analysis
For most consumers, a preventive maintenance program for their automobile consists of nothing more than an oil change. While a regular oil change is very important, the most critical part of changing the oil is to know when to change the oil.
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.
Spring A/C Repair Do’s And Don’ts
As vehicle owners in many parts of the country begin using their air conditioning systems for the first time this year, some will be surprised to find their A/C system is not functioning properly or isn’t blowing out cold air like the past summer.
Acura Driveability Issues
In this article, we’ll be looking at a 2006 Acura MDX that belongs to one of our long-time customers. This well-maintained, high-mileage vehicle has treated its owner well over the years, but it was getting older and with 150,000 miles on the odometer, it was causing some concern.
Checking Catalytic Converter Efficiency
The converter has an efficiency rating that is computed by the vehicle. This number rates the amount of reduction that is occurring in the converter and its ability to store oxygen.
