You searched for Leak - Page 189 of 192 - UnderhoodService
Ford Timing Belts & Chains

Timing belt and chain replacement is one service that isn’t going away any time soon. Most Ford engines with overhead cam timing belts have a recommended replacement interval of 60,000 miles to 120,000 miles depending on the application (see the chart on page 54). So if a customer is driving a vehicle that is more

10 Tips on Tightening

The installation of gaskets is one of the most important aspects of rebuilding an engine. Gaskets provide a seal between mating surfaces so oil, coolant, vacuum and pressure don’t leak. As long as all the gaskets are installed properly, everything should be fine, and the engine shouldn’t leak. But, as every rebuilder or technician knows,

Getting “Tuned” Into Exhaust System Service Opportunities

Although stainless steel exhaust systems have reduced the number of exhaust system replacements, it’s important to remember that regular exhaust system inspections remain an integral part of import service. When inspecting an exhaust system, remember that the exhaust pipe and muffler must: Help “tune” the engine for peak performance;   Reduce noise to legal levels;

Mercedes-Benz Engine Diagnostics

I’ve always loved the puzzle. Check Engine warning lights have become an everyday chore for me over the last five years. It’s a challenge that extends my interest and creativity in the auto service profession. Before I deal with some specific Mercedes-Benz faults that I’ve researched, I must say that the ability to really solve

MACS Show: Technical Session Coverage

Once a year, the Mobile Air Conditioning Society (MACS) hosts a trade show for A/C shop owners and technicians. This year’s event in Orlando, FL, provided a wealth of service information to those who attended the technical sessions. For those who couldn’t be there, we pass along some of the highlights from the technical sessions.

Chrysler Neon 2.0L

When Chrysler introduced their new Neon models back in 1995 under the Dodge and Plymouth nameplates, they said they were launching a new generation of “fun-to-drive” entry-level cars that would appeal to a wide range of people. Everything was new about the Neon: a brand new body, a brand new chassis and two new engines,

Nissan Brake/ABS Service Essentials

If you’re an import specialist technician reading this magazine, you’re very familiar with brake repair and service. Although the nuts and bolts have changed little over the years, it’s never a bad idea to look at even the most routine job, since ABS has certainly redefined the problems we encounter as well as the changed

OBD II Diagnostics:Tips And Tricks to Make the Process Easier

The Malfunction Indicator Lamp (MIL) can be a golden light of opportunity for your shop. If the light comes on, it means the Onboard Diagnostics II system (OBD II) has detected an emissions-related problem. OBD II is designed to turn on the MIL if a problem occurs that may cause emissions to exceed federal limits

Diagnosing and Fixing Compressor Failures

The compressor is the heart of the refrigeration circuit. It pumps and pressurizes the refrigerant to move it through the A/C system. Compressors work hard and run hot, up to several hundred degrees and several hundred pounds per square inch of internal pressure, yet they rely on only a few ounces of lubricant to keep

Mass Air Flow Operation Strategy

When diagnosing hot-wire air flow meters (A/F meters) on Subarus and similarly equipped Asian vehicles, technicians may find that, while the meter passes all recommended test procedures, the engine exhibits driveability conditions associated with lean air/fuel mixture ratios. In these cases, it’s best to form a diagnostic strategy based on the relatively simple operating principles