September 2022 - 29
* AUTEL ULTRA SCAN TOOL
* SNAP-ON ZEUS OSCILLOSCOPE
* SNAP-ON LOW AMP CLAMP
* AES WAVE FUSE TAP
* AUTEL ULTRA'S MAXIFLASH VCMI
* GM'S SERVICE PROGRAMMING
SYSTEM
* MATCO MC9440 BATTERY
MAINTAINER
(Don't assume - always perform that
visual inspection).
Next, perform your engine vacuum test
with a Mac Tools VG3000 vacuum gauge and
check it against your specs for the vehicle.
You will be able to determine if it is time to
perform a compression test and possibly a
cylinder leakage test with a Matco Tools
CLT2APB to determine if it is an intake
valve, exhaust valve, or a piston sealing problem.
All of these tools are relatively inexpensive
but mandatory for determining the basic
mechanical integrity of the engine.
When diagnosing fuel systems, the
age of the vehicle will be a major player
in which tool that you are going to be
using. On old carbureted cars, you will
be using your vacuum/pressure gauge
and looking for approximately 4 to 6
psi. If you recall fuel-injected cars from
the '80s, you were looking for 35 to 60
psi. For today's cars, you are going to be
using a scanner to verify high pressure
fuel system pressures on both gasoline
and diesel engine vehicles.
We do quite a bit of diagnostic and
ADAS work at our shop, so as you can
see from Figure 4, we have several Autel
scan tools. We also have a Snap-on Zeus,
Snap-on Vantage Legend, and a Thinkcar
Platinum S20. The majority of these tools
are used on a daily basis, allowing us to
work on present model year vehicles.
Always refer to your information system
to determine the proper fuel system test procedure
and specification. Be careful, on your
any of your vehicles with direct injection, the
high-pressure fuel systems can cause severe
A
personal injury. Follow the specific repair
procedures for the vehicle you are working on.
When it comes to testing ignition systems,
I will always start with a code scan
to see if I can determine the specific cylinder.
The diagnostic systems on the vehicles
these days are very good at pinpointing a
cylinder in question, but not what is actual
causing the specific problem. That's our
job. I will grab my oscilloscope to look at
the current ramping of the coil packs.
The best part of individual coil packs
is that you have several other examples of
" known good examples " . There are plenty
of tools on the market that are pinpoint
based testing on ignition coils, like the Blue
Point YA76562, and cost much less than
an oscilloscope. In many cases you can
Circle 50 on card or click " PTEN e-inquiry " on VehicleServicePros.com
www.VehicleServicePros.com SEPTEMBER 2022 PROFESSIONAL TOOL & EQUIPMENT NEWS 29
2207PTEN_Topdon.indd 1
6/8/22 8:13 AM
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http://www.VehicleServicePros.com
http://www.VehicleServicePros.com
September 2022
Table of Contents for the Digital Edition of September 2022
EDITOR'S NOTE
NEW PRODUCTS
DIAGNOSTIC TECH
TOOL BRIEFING
TOOL REVIEWS
INNOVATION AWARDS
CATEGORY SPOTLIGHT
BIG-TIME BOXES
September 2022 - 1
September 2022 - 2
September 2022 - 3
September 2022 - 4
September 2022 - 5
September 2022 - 6
September 2022 - 7
September 2022 - EDITOR'S NOTE
September 2022 - 9
September 2022 - NEW PRODUCTS
September 2022 - RSC1
September 2022 - RSC2
September 2022 - 11
September 2022 - 12
September 2022 - 13
September 2022 - 14
September 2022 - 15
September 2022 - 16
September 2022 - 17
September 2022 - 18
September 2022 - 19
September 2022 - DIAGNOSTIC TECH
September 2022 - 21
September 2022 - 22
September 2022 - 23
September 2022 - 24
September 2022 - 25
September 2022 - TOOL BRIEFING
September 2022 - 27
September 2022 - 28
September 2022 - 29
September 2022 - 30
September 2022 - 31
September 2022 - 32
September 2022 - 33
September 2022 - TOOL REVIEWS
September 2022 - 35
September 2022 - 36
September 2022 - 37
September 2022 - 38
September 2022 - 39
September 2022 - INNOVATION AWARDS
September 2022 - 41
September 2022 - CATEGORY SPOTLIGHT
September 2022 - 43
September 2022 - 44
September 2022 - 45
September 2022 - 46
September 2022 - 47
September 2022 - 48
September 2022 - 49
September 2022 - 50
September 2022 - 51
September 2022 - 52
September 2022 - 53
September 2022 - 54
September 2022 - 55
September 2022 - 56
September 2022 - 57
September 2022 - BIG-TIME BOXES
September 2022 - 59
September 2022 - 60
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