MAY 2007 Meeting Recap
The Care &
Feeding of Under Car Service Equipment
David
Williams of Dave's Equipment Service will be the instructor.
Dave has over 30 years of experience in this
field
-
Get an overview of how to get
the most out of your tire changers, balancers,
brake lathes and wheel aligners.
-
What you can do to your equipment
to keep it performing at its best without wasting
your precious dollars. Minimize down time and
expenses.
-
What accessories are available
to help you mount tires without damage to the
tire/wheel or to your changer.
-
Balancing procedures that will
minimize your comebacks.
-
Maintenance and setup tips on
how to get the best cuts with your lathe.
-
How to adapt your aligner to
the wheels we see on the road today. Aligner and
rack maintenance ideas to keep those steering
wheels straight.
Apr 2007 Meeting
Recap
A Brand New
Class!
PCM Strategies
John Forro
Jr. will be the instructor.
PCM Strategies... This new course covers
various PCM strategies that the engineers use to run
tests on various systems found throughout the automobile.
This is a must have understanding
for a technician to be able to accurately diagnose
computer controlled and electronic drivability issues.
An example of such a strategy that we
can all relate to is oxygen sensors need to be 600
degrees before they are used by the PCM. If you have
a DTC for a faulty O2 and it is accompanied by a drivability
complaint when cold, replacing the O2 WILL NOT fix
your drivability concern!
Jan 2007 Meeting Recap
The
JAN 31 Meeting
was great!
Tom
Rayk
was the instructor
It Covered:
• Honda,
Toyota & Ford Models
• Scan data on battery pack
• Safety procedures
• Common service concerns
• On Board safety system |
• Glass
mat battery system
• Jump starting procedure
• Full color complete book
• And much much more |
We have a unique special opportunity
for the club. Our officers have worked for several
months to prepare this deal. We have arranged to offer
a special in-depth seminar on Hybrid cars. It covers
Toyota, Ford & Honda. This seminar includes five (5)
individual topics covered in-depth in 4 hour sessions
each.
You
cannot get this class elsewhere!
HYBRIDS are
here to stay! They are selling as fast as they come
off of the assembly line. This seminar will prepare
you for repairing the hybrids - earn good money!
December
Meeting Recap
Programming
Flash reprogramming
PCMs is NOT for the faint of heart.
Chuck
Mehozonek - instructor
Flash reprogramming PCMs is NOT
for the faint of heart.
It takes a considerable investment in equipment,
paying OEM subscription fees to get flash updates
on a CD or online, plowing though pages and pages
of charts and tables and TSBs to figure out whether
or not the calibration software in a vehicle's PCM
needs to be updated, and then plunging ahead with
the update itself.
Yet PCM flash reprogramming is becoming more
and more necessary as vehicle modules get smarter
and more complex. General Motors estimates that
they have released flash updates for as many as
70% of 1995 and newer GM vehicles Reprogramming
using a J2434 Global Reprogramer is an important
service that can be performed by an independent
shop. Most auto parts store offer this service to
the Professional Automotive Repair Shop, are you
taking advantage of this service?
Information that was
presented during this clinic included:
- When to perform a flash
- Selling the service
- Equipment requirements
- Using the OE web sites
- Precautions and techniques for successful
flashing
- How to perform the relearn on engine systems
November
2006 Meeting
GM’S DISPLACEMENT
ON DEMAND (DOD)
AKA ACTIVE FUEL MANAGEMENT
Tom Rayk Presented This Hottest New
Topic to a Sell out Crowd
AAA - 5700 Brecksville Rd,
Independence Ohio
View
November Meeting Photos
GM has trademarked Active Fuel Management™
as the name for its displacement on demand fuel-saving
technology, beginning with the Vortec 5.3 V-8-equipped
2007 Chevrolet Tahoe and GMC Yukon.
More than
two million GM vehicles will utilize this technology
by 2008
Active Fuel Management™ is a fuel-saving technology
that enables the engine to automatically and seamlessly
operate on only half of the engine’s cylinders when
full power is not needed, improving efficiency by
as much as 12 percent in some vehicles. GM currently
offers the fuel-saving technology in nine models –
more than any other automaker.
Enabled by General Motors' state-of-the-art electronic
powertrain controls, Active Fuel Management saves
fuel by using only half of the engine's cylinders
during most normal driving conditions. When loads
are light, the control system automatically closes
both intake and exhaust valves for half of the cylinders,
cutting off their air and fuel supply. The valves
are reopened to provide all-cylinder operation when
the driver needs it for brisk acceleration or for
hauling heavy loads.
"We have figured out a way to make our V-8 engines
work smarter," said Winegarden. "GM's new Vortec V-8s
will be able to deliver the same top-of-the-line performance
with less effort, with less energy. That's the essence
of efficiency."
The engine always starts on eight cylinders. But
once the vehicle is moving, the powertrain control
module activates Active Fuel Management, to enable
improved performance.
In the U.S., high-powered multi-cylinder internal
combustion engines are perceived to be necessary to
satisfy driver demands for quick acceleration, oversized
vehicles and/or heavy towing capacity, but during
daily use they are generally operated at power settings
of less than 25%. At freeway speeds, less than 40 hp
(30 kW) are required to overcome aerodynamic drag,
rolling friction, and to operate accessories such
as air conditioning. Thus, a high-powered, large-displacement
engine is highly inefficient and wasteful when being
used for normal driving conditions- the vast majority
of the time.
In a naturally-aspirated engine provides maximum
power when the engine throttle is held wide open.
When less power is needed, the throttle is mostly
closed. The engine has to work to simply draw air
through the throttle. The work that's done is called
a "pumping loss". If some of the cylinders could be
switched off less air would be required, and the throttle
held further open, thereby reducing pumping losses
and increasing overall engine thermal efficiency.
This is the motivation for cylinder deactivation.
To deactivate a cylinder, the exhaust valve is prevented
from opening after the power stroke and the exhaust
gas charge is retained in the cylinder and compressed
during the exhaust stroke. Following the exhaust stroke,
the intake valve is prevented from opening. The exhaust
gas in the cylinder is expanded and compressed over
and over again and acts like a gas spring. As multiple
cylinders are shut off at a time (cylinders 1, 4,
6 and 7 for a V8), the power required for compression
of the exhaust gas in one cylinder is countered by
the decompression of retained exhaust gas in another.
When more power is called for, the exhaust valve
is reactivated and the old exhaust gas expelled during
the exhaust stroke. The intake valve is likewise reactivated
and normal engine operation is resumed. The net effect
of cylinder deactivation is an improvement in fuel
economy and likewise a reduction in exhaust emissions.
General Motors was the first to modify existing, production
engines to enable cylinder deactivation.
Second generation
The electronics side was improved greatly with the
introductions of Electronic Throttle Control, electronically
controlled transmissions, transient engine and transmission
controls, engine emissions controls, and vastly increased
computing power. A solenoid control valve assembly
integrated into the engine valley cover contains solenoid
valves that provide a pressurized oil signal to specially
designed hydraulic roller lifters provided by Eaton
Corp. and Delphi. These lifters disable and re-enable
exhaust and intake valve operation to deactivate and
reactivate engine cylinders.
Unlike the first generation system, only half of
the cylinders can be deactivated. It is notable that
the second generation system uses engine oil to hydraulically
modulate engine valve function. As a result, the system
is dependent upon the quality of the oil in the engine.
As anti-foaming agents in engine oil are depleted,
air may become entrained or dissolve in the oil, delaying
the timing of hydraulic control signals. Similarly
engine oil viscosity and cleanliness is a factor.
Use of the incorrect oil type, i.e. SAE 20W40 instead
of SAE 5W20, or the failure to change engine oil at
factory recommended intervals can also significantly
impair system performance.
No Oct. 2006 Meeting
Sept 2006 Meeting
Network Diagnostics:
And what to do when it is broke.
Don't kick the C.A.N.! ----
Instructor John Forro Jr
Network Diagnostics: And what to do when its
broke.
This course covers what to do if you have a C.A.N.
(Controller Area Networking) vehicle that fails
to communicate with your scan tool.
Click Here for
a list of OBD 1 & OBD 2 Terminology
The problems that arise are: --
- failed emissions,
- inoperative electrical systems,
- failing to start due to lack of
anti-theft signals,
- illuminated warning lights such as SIR,
- Check engine,
- 4 wheel drive,
- traction controls and
- ABS.
If any module has a problem, you will most likely
receive a DTC for a U1000 (network problem), learn
how to quickly and accurately diagnose these symptoms.
May
2006 Mtg Recap
Automotive Labscope Training
Duane Throckmorton of Millennium
Training
We had a live car to hook to
and Duane covered all bases using the labscope and
explained the differences of the labscope and a graphing
meter and usage of both. Time –voltage – trigger level
– Pos and Neg slope- voltage drop – Freq – square
wave – digital wave and much much more were covered.
AATEC supplied the Action Scope for its customers.
the meeting was held at the AAA location again.
APR
Mtg Recap
AIR CONDITIONING
UPDATE
WE
GOT THE LATEST AC INFORMATION from Instructor Bob
Fritzgerald
The meeting was held at the AAA in Independence
OH.
Thanks to
Bob Fiztgerald for the outstanding seminar he put
on. We are looking forward to having him back in the
fall. I have had many e-mails telling me how much
they appreciated Bob for sharing his information with
us.
The officers
and I appreciate very much when you tell us when we
are doing a good job for you. We had over 65 attendees
and had a lot of member pay dues. AATEC Inc and Bob
Snyder and Cliff Schnear of the AAA donated some very
nice products for the 50/50. I would also like to
give a big thanks to Bob and Cliff for letting the
ATA use the AAA facility and for their valuable time
spent helping the ATA. Please take the time to Call
Bob or Cliff for information about joining the AAA.
They have made a big difference since they took over
and have a lot to offer our members. I have talked
to many shops who have joined AAA East Central and
said it helped them a lot. Very high praise for Bob
and Cliff.
This
seminar covered hot topics in time to launch the air
conditioning season. We're on the frontier
of another service refrigerant that will phase out
134a. DuPont and Honeywell are already gearing up
for the change. Infrared technology has crept into
the latest leak detectors. With the newest, tightest
AC systems, charge level is more critical than ever
before. Some of the black lights that technicians
are using are not black at all, but blue. Not all
UV lights are the same--there is UVA, UVB and UVC
to contend with. There are so many products finding
their way into AC systems--134a with additives--what's
acceptable and what isn't? Come learn more about:
PAST / PRESENT / FUTURE AC SYSTEMS * AC LEGISLATION
NEWS * WORKING AC FLUIDS * AC SERVICE & DIAGNOSIS
Get
the lateset A/C Info on:
-
NONDISPERSIVE LEAK
DETECTORS
-
NEW SERVICE REFRIGERANT
REPLACING 134A
-
PAG, POE AND POLYALPHAOLEFIN
OILS
-
NEW GENERATION BLACK
LIGHT TECHNOLOGY
-
COMPRESSOR SERVICE
PROCEDURES
-
DIAGNOSTIC TIPS
FORD, CHRYSLER & GM
-
MUCH MORE
Feb
Mtg Recap
Hot Topic Highlights!
Instructor
John Forro gave an overview of
4 hot topics - Its info you need now!
Topics
covered will include an overview of the following
subjects,
Topics
covered included: