VIDEO: Lean Codes On EGR Valves
Andrew Markel discusses a diagnostic solution when a vacuum leak appears that can’t be pinned down. Sponsored by Auto Value and Bumper to Bumper.
GMC Tech Tip: EVAP Vent Solenoid Replacement (P0449)
Check engine light is illuminated with code P0449 from scan tool (Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction).
KIA: Codes P0171, P0446, P0507 And P2187
This Kia Rio had the check engine light on with codes P0171, P0446, P0507 and P2187. Follow this Real Fix to see the diagnostic steps used to determine the actual fault.
Understanding EVAP: From The Tank To The Intake
Modern EVAP systems are selective when they vent vapors into the engine. The PCM will select the right engine temperature and throttle position to purge the system. They are also very selective when system checks are performed. A computer is constantly monitoring the results of the commands sent to the valves with the help of sensors mounted in the tank and EVAP canister.
EVAP Leak Diagnostics
On its own, any leak detection device can be a powerful tool to detect leaks. In the wrong hands, using these can lead to comebacks and parts being replaced needlessly. But, when one of these devices is paired with service information, training and most importantly a scan tool, it can lead to a more profitable and productive diagnostic process.
Fuel Tank Installation: Avoiding The Second Drop
Nothing is worse than a comeback after a fuel tank has been dropped. Discovering that the fuel tank needs to be dropped again to address a problem can kill shop productivity and profitability. Below are tips that can help you avoid comebacks and dropping the fuel tank for a second time.
Induction Cleaning Service For Direct-Injection Vehicles
You may have seen it before: misfire codes, stumbling and suspicious fuel trim numbers. On a scan tool, the engine may show a loss in volumetric efficiency. The driver may complain about a loss of power, poor fuel economy, hard starts and a rough idle. But this is not a 12-year-old engine; it is only
Making Money with Mode $06
Nothing is more frustrating than “fixing” a customer’s vehicle and then have it come back a few days or weeks later with the check engine light on and the same fault code or a new fault code. You look bad, lose your customer’s confidence in your ability to fix their vehicle, and in states that
Emissions Codes: Mercedes-Benz Case Study
The Malfunction Indicator Light (MIL) has been around for more than 25 years, but since OBD II standards made the electronic monitoring of emissions mandatory, that light has been given new life. In Washington state, the emissions test procedure for OBD II cars makes control of the MIL an integral part of the test procedure.
10 Signs A Fuel Injector Needs To Be Replaced
In the past 30 years, the fuel injector has moved from the intake manifold to the combustion chamber. During this evolution, injectors have become more precise in dispensing fuel. If this precision is thrown off by restrictions, electrical problems or fuel problems, it can cause driveability issues. These are the top 10 signs fuel injectors need service or replacement.
Air Conditioning System Advances Change Service Opportunities
The attention-grabbing headline in the world of air conditioning is usually the switching of refrigerants as the industry and regulators continue to search for the next level of environmental friendliness. But the underrated A/C story that’s slowly developed during the same time period is the overall improvement of A/C systems.
10 Toughest Cabin Air Filter Jobs
There are still many late model vehicles that are not easy to service, and they require a significant amount of disassembly to gain access to the filter. For your shop, this is billable labor. Here are the 10 toughest jobs according to the editors of Underhood Service.
