Engine, A/C - Idle Instability With Rear A/C ON

NUMBER: 24-001-09

GROUP: Heating & Air Conditioning

DATE: April 25, 2009

SUBJECT:
Idle Instability - Rear A/C Idle Cutout Module Installation

OVERVIEW:
This bulletin involves installing a Rear A/C cutout module and inspecting the engine air filter.

MODELS:

2003 - 2006 (VA) Sprinter

NOTE:
This information applies to models equipped with Rear Air Conditioning

SYMPTOM/CONDITION:
Some customers may experience idle instability in warm temperatures while using the rear A/C system.

DISCUSSION:
A rear A/C cutoff kit is available to eliminate idle instability. The kit will temporarily turn the compressor off when nearing idle RPM and allow it to operate normally while driving. Additionally, it is important that the engine can breath properly for proper performance and the Air Filter and housing must be inspected for dirt.





PARTS REQUIRED:





SPECIAL TOOLS/EQUIPMENT REQUIRED:

REPAIR PROCEDURE:

1. Following the procedures listed in the parts kit Instruction Sheet, Install the Rear A/C cutout kit using the standard splice procedures listed below.

2. Inspect the air filter and housing. If the air filter is dirty, replace the filter and clean the housing of any debris.

STANDARD SPLICE REPAIR:

1. Remove one-half (1/2) inch of insulation from each wire that needs to be spliced.

2. Place a piece of sealant lined heat shrink tubing on one side of the wire. Make sure the tubing will be long enough to cover and seal the entire repair area.





3. Place the twisted strands of wire overlapping each other inside of the splice band (Fig 1).





4. Using crimping tool, Miller p/n 10042, crimp the splice band and wires together (Fig 2).





5. Solder the connection together using rosin core type solder only (Fig. 3).





6. Center the heat shrink tubing over the joint and heat using a heat gun. Heat the joint until the tubing is tightly sealed and sealant flows out of both ends of the tubing (Fig. 4).

POLICY:
Reimbursable within the provisions of the warranty.





TIME ALLOWANCE:





FAILURE CODE:

Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.