Improve Diagnostic Skills By Listening Better
Improve Diagnostic Skills By Listening Better
Service Advisors: Customer Satisfaction Starts With Communication
This webinar is part of "AAPEX Repair Shop HQ Webinar Series: An 8-Part Webinar Series." Sponsored by AAPEX.
Your first encounter with a customer is a lasting one – are your service advisors’ communication skills up to the task? We’ll outline the top tips to ensure that every conversation on the phone, in person and via text helps set the appointment, confirm the service request, complete the payment, and confirm any follow-up service requirements.
Speakers Doug Kaufman, Editor, ShopOwner
Underhood Service targets repair shops that derive 50 percent or more of their revenue from the service and repair of under-the-hood systems. The expanding amount of knowledge and capital needed to keep up with technological advances has led these shop owners to concentrate on underhood systems, while also offering preventive maintenance services on most major vehicle systems. By subscribing, you’ll receive the ShopOwner digital edition magazine (12 times/year) featuring articles from Underhood Service and the Underhood Service eNewsletter (twice weekly). Access to digital editions, contests, news, and more are ready for you today!
Underhood Service targets repair shops that derive 50 percent or more of their revenue from the service and repair of under-the-hood systems. The expanding amount of knowledge and capital needed to keep up with technological advances has led these shop owners to concentrate on underhood systems, while also offering preventive maintenance services on most major vehicle systems. By subscribing, you’ll receive the ShopOwner digital edition magazine (12 times/year) featuring articles from Underhood Service and the Underhood Service eNewsletter (twice weekly). Access to digital editions, contests, news, and more are ready for you today!
ByUnderhood Service Staff Writers on Jun 16, 2022
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GDI Systems are changing with fuel economy standards and emissions regulations. Sponsored by Standard Motor Products.
CC: Fuel economy standards and emissions regulations have continued to tighten in recent decades. To stay in compliance, OEMs have turned to gasoline direct injection (GDI) systems in late-model vehicles. These systems are able to measure and control the amount of fuel entering the combustion chamber more accurately, boosting fuel economy and maximizing power output. Let’s begin with an overview of the system, then we’ll look at a few common failures you may come across in your shop.
The low-pressure fuel pump is mounted inside the fuel tank, and it sends fuel through the fuel lines and up to the high-pressure fuel pump. This pump is typically mounted on the engine and is driven by a lobe on the camshaft. The fuel pressure is then increased to extremely high pressures – some applications may see 3,000-5,000 psi. The fuel then travels to the injectors which are mounted inside the cylinder head and injected directly into the combustion chamber.
So why does the fuel pressure need to be so high? Port fuel injectors spray fuel in a vacuum, and that vacuum draws the fuel vapors into the combustion chamber. But direct injectors need to be able to overcome the higher pressures seen inside the combustion chamber, so the fuel pressure needs to be much higher compared to port injection.
The increased fuel pressure has another benefit – the fuel is able atomize much better compared to port fuel injection. The more atomized the fuel is, the better it burns, and the engine can run much more efficiently. In many late-model vehicles, lower displacement engines with GDI are able to make 20% more power with 20% less displacement when compared to bigger engines from a decade ago.
Whenever servicing a GDI system, keep an eye out for the following common issues. It’s especially important that the engine oil is changed according to the OEM maintenance guide. It’s just as important to use the correct viscosity and type of oil, regardless of vehicle age or mileage. If the oil is not regularly changed, or if the incorrect oil is used, it could spell disaster down the road. It can speed up the formation of carbon deposits on the intake valves, but it can also lead to abnormal wear on the camshaft lobe which drives the high-pressure fuel pump.
Finally, the fuel lines after the HPFP feature specialized end fittings which seal against the mating surfaces on the pump and injectors. These end fittings will leak if they are improperly tightened. In many applications, you may be required to replace the line any time it is removed. So, be sure to check the OE service information before starting the repair.
This video is sponsored by Standard Motor Products.
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