June 2018 Archives - UnderhoodService
Kia Tech Tip: New Part Cures EVAP Leaks

This bulletin provides the procedure to replace the Canister Close Valve (CCV) on some 2012- 2017MY Rio (UB) vehicles, produced from June 21, 2011, through March 28, 2016, which may exhibit the engine warning lamp DTCs P0455 and P0456 for an evaporative emission system leak due to the Canister Close Valve (CCV) stuck open.

GM Tech Tip: New Engine Noise During Cold Start-Up

The latest generation of full-size trucks and utilities incorporate a new generation of technologies not previously seen in a GM full-size truck and utility applications. These engines generate noises during cold start and during warm operation that technicians may not be familiar with.

Tech Tip: Ford 3.5 Ecoboost With Blue Or White Smoke From Exhaust

Some 2013-2015 models vehicles equipped with a 3.5L Gasoline Turbocharged Direct Injection (GTDI) engine may exhibit blue or white smoke from the exhaust while driving after extended idle.

Curing Belt Slippage

If an engineer could design a belt system that would never slip it would be a miracle. This perfect belt system would last a long time because without slipping, there would be very little wear. But, it is not that simple. Too much tension would increase the loads on the engine and the strain on a belt is not constant. It is a balancing act between drag, slippage and belt wear.

Follow The MAP Sensor

In this article, I want to introduce you to the seldom-used diagnostic power of the Manifold Absolute Pressure (MAP) sensor. A tech asked me to come by and look at a Dodge 1500 pickup with a P0305 code that indicated a cylinder 5 misfire. The tech’s primary tool was a code reader. His question was, is there a quick way to determine which direction to take in the diagnostic procedure?

The Oil And Carbon Deposit Connection

Oil is made of carbon atoms. The oil in the crankcase is a highly refined carbon-based substance that is found in long chains with strong bonds that are typically uniform in size and shape. They work well together to lubricate the engine and protect the bearings, as they are engineered to withstand extreme temperatures.

Selling Four TPMS Sensors

If a single sensor has reached the end of its lifespan, it is highly recommended to replace all sensors at the same time. Similar to headlights, once one sensor dies, the rest are likely to be close behind. This is an important point for your customers to understand. Taking care of the issue before there is a problem also provides a convenience to them.

Modern Cooling System Design: It’s Not About Temperature; It’s About Powertrain

Given the advanced state of internal combustion engine technology, some recent cooling system innovations will actually increase engine torque and fuel economy while reducing exhaust emissions. Let me simplify that idea: new cooling system technology will make engines run better and cleaner. So, let’s get on the same page by reviewing some basics.

It Really Isn’t That Bad: Ask Yourself Why You Came To Work This Morning

If you are a regular reader of my columns, you may have noticed that I have been a little negative lately. I have been writing about topics like technician image, unethical shops and other gripes about our industry. Last month, I got a letter from an older tech wanting to get out of the industry because he felt vehicles were getting more complex while monetary compensation was not growing at the same rate. He cited one of my editorials as something that resonated with some of his own grievances. At first, I felt guilty.

A/C Compressor Replacement: Doing A Visual Inspection & Checking For Leaks And Debris Eases Diagnostics

One thing on your customers’ minds during the summer driving months is air conditioning – as in, will it work when they need it. Driving around in the hot summer heat can take a toll on the A/C system, so, chances are, you’ll be doing a lot of HVAC repairs from now until the end of September.