August 2022 - 38
TOOL BRIEFING
overworked and has burned out or it could
be as simple as a fuse or relay problem. Of
course, referencing a proper wiring diagram
is where the analysis should always
begin. Whether it's sourced from Mitchell,
MotoLogic, ALLDATA, Identifix, or even
factory OEM information, it's crucial to an
accurate diagnosis. We should always aim
to find the root-cause of the failure, not just
replace the failed component.
Compressor making noises. The owner
p Figure 4- PicoScope 4425a lab scope
possible. When compressors are overworked,
they begin to overheat and eventually
fail. Monitoring electrical current flow
of the compressor motor (using a lab scope
and amp probe) on known-good vehicles
will allow you to become familiar with what
a normal functioning pump's operation
should look like (Figure 4). Only then will
you be able to efficiently use this strategy
to recognize a failing pump's signature,
before symptoms are present, preventing
come-backs. A DVOM can also work, however
you will not have visible signature of
the current, only the current value
Compressor not working at all. The air
suspension system cannot function without
the compressor. If the compressor does not
come on at all, that may be a sign that it was
may also notice abnormal noises during
compressor operation, such as loud clicking,
whining, or grinding. This could be a sign
that the compressor has been overworked,
or there could be excess moisture in the
system because the compressor's dryer is
saturated. Once the compressor has been
replaced, the rest of the system, including
the air springs and struts, should be tested.
Other suspension issues also might
apply to air suspension, including:
* The vehicle bottoms out over bumps or
rides rough;
* It nose-dives when stopping;
* The vehicle pulls to one side or steering
is difficult;
Electronic
Specialties
Low Current
Probe/DMM
Circle 88 on card or click
" PTEN e-inquiry " on
VehicleServicePros.com
Performance Tool
HD Digital Tire Inflator Kit
Circle 89 on card or click " PTEN e-inquiry "
on VehicleServicePros.com
Power Probe
DM500MAX Digital Multimeter
Circle 87 on card or click " PTEN e-inquiry " on
VehicleServicePros.com
Hunter Engineering
Quick Check Commercial
Autonomous Inspection
System
Circle 90 on card or click " PTEN
e-inquiry " on VehicleServicePros.com
38 PTEN AUGUST 2022 www.VehicleServicePros.com
http://www.VehicleServicePros.com
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http://www.VehicleServicePros.com
http://protoolequipment.hotims.com/r5/search.asp?action=search&return_by_category=y
http://www.VehicleServicePros.com
August 2022
Table of Contents for the Digital Edition of August 2022
EDITOR'S NOTE
NEW PRODUCTS
2022 PTEN INNOVATION AWARDS WINNERS
DIAGNOSTIC TECH
TOOL BRIEFING
TOOL REVIEWS
CATEGORY SPOTLIGHT Tire & Wheel Service
BIG-TIME BOXES
August 2022 - 1
August 2022 - 2
August 2022 - 3
August 2022 - 4
August 2022 - 5
August 2022 - 6
August 2022 - 7
August 2022 - EDITOR'S NOTE
August 2022 - 9
August 2022 - NEW PRODUCTS
August 2022 - RSC1
August 2022 - RSC2
August 2022 - 11
August 2022 - 12
August 2022 - 13
August 2022 - 14
August 2022 - 15
August 2022 - 16
August 2022 - 17
August 2022 - 18
August 2022 - 19
August 2022 - 2022 PTEN INNOVATION AWARDS WINNERS
August 2022 - 21
August 2022 - 22
August 2022 - 23
August 2022 - 24
August 2022 - 25
August 2022 - 26
August 2022 - 27
August 2022 - 28
August 2022 - DIAGNOSTIC TECH
August 2022 - 30
August 2022 - 31
August 2022 - 32
August 2022 - 33
August 2022 - TOOL BRIEFING
August 2022 - 35
August 2022 - 36
August 2022 - 37
August 2022 - 38
August 2022 - 39
August 2022 - 40
August 2022 - 41
August 2022 - 42
August 2022 - 43
August 2022 - 44
August 2022 - 45
August 2022 - 46
August 2022 - 47
August 2022 - 48
August 2022 - 49
August 2022 - 50
August 2022 - 51
August 2022 - 52
August 2022 - 53
August 2022 - 54
August 2022 - 55
August 2022 - TOOL REVIEWS
August 2022 - 57
August 2022 - 58
August 2022 - 59
August 2022 - CATEGORY SPOTLIGHT Tire & Wheel Service
August 2022 - 61
August 2022 - 62
August 2022 - 63
August 2022 - 64
August 2022 - 65
August 2022 - BIG-TIME BOXES
August 2022 - 67
August 2022 - 68
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