What Does A Muffler Really Do?
Is a muffler nothing more than a steel can with some baffles and tubes inside? That’s how most mufflers look, but there’s a lot more to muffler science than meets the eye.
ASE Test Prep: Passing The X1
Understanding the relationship between the exhaust system and engine is important when preparing to take the ASE X1 certification test.
A/C Oil Update
HVAC systems often fail because the air conditioning compressor fails. Not following the proper service procedures or compressor oil recommendations could be factors that contribute to premature compressor failure.
VIDEO: Ordering The Right Catalytic Converter
Andrew Markel explains the importance of ordering the correct catalytic converter for a vehicle’s emissions standards, and where you can find what those standards are. Sponsored by Walker Emissions Control.
3 Reasons To Replace Cabin Air Filters In Winter
Often driven by an “out of sight, out of mind” mentality, most consumers don’t think about purchasing cabin air filters. That’s why educating consumers on the benefits of cabin air filters can be a shop’s best sales pitch for selling these maintenance add-ons.
Understanding Diesel Exhaust Filters
The Diesel Particulate Filter (DPF) is a ceramic filter that has thousands of tiny channels or honeycomb-shaped openings that trap the soot onto the channel walls and prevent the particulate matter (down to 1 micron) from exiting out the tail pipe.
Preventing Low-Speed Pre-Ignition With The Right Oil
Selecting the correct type and weight of oil for a vehicle becomes more difficult every model year. Recently, many manufacturers have recommended specific oil grades that meet proprietary requirements.
GM Tech Tip: Heat Shield Buzz During Operation
Some customers may comment on a pinging/popping/snapping noise from underneath the vehicle at idle or immediately after the vehicle is shut off. A pinging/popping/snapping noise from the exhaust system during cooldown is a normal condition.
What Repair Shops Should Know About Selling Filters
Some service advisors never mention the protection provided when the filter is installed, or the immediate value to customers when they pull out of your lot. They get caught up in the mileage argument and the debate on what an extended interval really means to the customer.
Checking Catalytic Converter Efficiency
Almost every part on the engine determines how long a catalytic converter will last. It could be a faulty line of computer code that pulses an injector too long, or it could be a stuck piston ring that allows oil to be sucked into the combustion chamber. These little details can limit the life of a catalytic converter.
BRAKELIGHT: 1990 Jeep Wrangler
This customer has a 1990 Jeep Wrangler 4×4. When he came in he said, “I felt a really bad vibration and realized I forgot to take it out of four-wheel drive. Then the front driveshaft flew off the car at 80 mph and now it feels a little low on power.” He needed a new exhaust pipe, transfer case and driveshaft.
Turbo Tech: Power Stroke 6.0 Diesel Turbo Control
UNDER CONSTRUCTION