Bosch Mastertech Vehicle CommunicationInterface (VCI) Technical Information download pdf

continued on page 3

November & December 2014

What can cause an air conditioning

compressor to suffer an early death,

one of the most common service

concerns for service centers? An

insufﬁcient oil charge? Moisture in the

system? Contaminated refrigerant oil?

Wrong oil type? All of the above?

The compressor is the heart of the

A/C system, pumping refrigerant and

refrigerant oil through the system. A

low oil level or the wrong oil type or vis

cosity will accelerate compressor wear.

Moisture can lead to internal corrosion.

Contaminated refrigerant oil can clog

the oriﬁces, screens and control valves

and deteriorate the rubber hoses. So

the answer is all of the above. But the

answer also is system ﬂushing, which

will remove the old oil and most con

taminants from the A/C system and

components, and checking the appropri

ate Service Information to determine

the correct amount and type of oil

before installing a new compressor.

The new ACDelco seminar,

Today’s Top Service Concerns

(S-DS11-17.01SEM), covers some of

the top service concerns affecting

many aftermarket shops, such as A/C

compressor service. The seminar offers

technical solutions as well as tips to

ensure a proper repair.

Information presented in the seminar

reviews the service issue, some of the

typical causes, and how to properly

address the concern. Case studies pro

vide a descriptive investigation of each

issue along with the details needed to

determine the fundamental reasons for

a cause and correction.

Here’s a quick look at a few of the

topics covered in the three-hour seminar.

Power Steering

Power steering system failure may be

caused by improper pulley removal and

installation, re-using old O-rings, improp

er ﬂuids, and other factors. The seminar

presents detailed information on power

steering ﬂuid and ﬂushing procedures.

HVAC

A/C compressor failure and compres-

sor replacement are reviewed. Before

installing a new compressor, determine

how much oil is required in the sys

tem. Ensure the correct oil types and

amounts are used.

New Seminar

Reveals Solutions

to Top Service

Concerns

Scan the code to

download a PDF

www.acdelcotechconnect.com,

click the Newsletters link

Follow ACDelco

Putting It All Together in Top Service

Concerns Seminar ......................1

New CONNECTION to Parts Ordering .....2

New Tool Helps Diagnose CAN Bus Faults . 4

New Glow Plug Bore Reamer Available ....5

Bosch Diagnostic Equipment Rebate ......6

GM Dealer Equipment Diagnostic

Tools Promotion ........................6

ACDelco Sponsors HVAC Technology

Seminar at 2015 MACS Event .............6

Tech Tips ..............................7

Training Update .........................8

IN THIS ISSUE

Putting

It All

Together

1 2 3 4 5 6 7 8

Summary of Contents

Page 1 - Together

continued on page 3November & December 2014What can cause an air conditioning compressor to suffer an early death, one of the most common servic

Page 2 - CONNECTION to Parts Ordering

2 Volume 21, Number 6 (ST-PU-0006-14)ACDelco TechConnect is published bi-monthly and online for technicians of Professional Service Center and Key F

Page 3 - – continued from page 2

3New Seminar Reveals Solutions – continued from page 1BatteriesA drained battery that is capable of holding a charge may be caused by a parasitic drai

Page 4 - Three-In-One Application

4New Tool Helps Diagnose CAN Bus FaultsGM has released new diagnostic soft-ware to help technicians identify a start-ing point in diagnosing faults in

Page 5 - More Information

5New Glow Plug Bore Reamer AvailableNew Tool Helps Diagnose CAN Bus Faults – continued from page 4The biggest difference between Message Monitor and

Page 6 - Professional Service Center

6Professional Service CenterBosch Diagnostic Equipment RebateGM Dealer Equipment Diagnostic Tools PromotionACDelco Sponsors HVAC Technology Seminar at

Page 7 - TechTips

HVAC Vent and Floor Mode Selection Inoperative2007-2014 Chevrolet Express, GMC Savana equipped with 6.6L Diesel EngineThe HVAC air delivery mode contr

Page 8 - TrainingUpdate

ST-PU-0006-148TrainingUpdateDiagnose New Systems in the Interactive Diagnostic ExercisesThere are four new diagnostic exercises now avail-able on the