IK1600232 ­ LT Air Deflector / Fairing Vibration at Highway Speeds

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Countries:

Document ID: IK1600232

Availability:

ISIS, FleetISIS, IsSIR

Major System:

CAB / SLEEPER / HOOD Created:

Revision:

1
9/6/2017

Current Language: English

Last Modified: 10/11/2017

Other Languages: NONE

Author:

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Allan Hertko

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Title : LT Air Deflector / Fairing Vibration at Highway Speeds
Applies To : LT

Change Log
Please refer to the change log text box below for recent changes to this article:
10/11/2017 - Specified sealant product
10/10/2017­ Initial Article Release

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Description
Some LT vehicles equipped with a sleeper air deflector combination may exhibit a cab vibration, rumble or drone while cruising
at highway speeds (40­70 mph).

Symptom(s)
Vibration / Drone / Rumble / Gap

Parts

Part
Number
2611726C1

Description
Bostik® SuperTrans
adhesive

Quantity Comment
1

10.3 oz
cartridge

Diagnostic and Repair Steps
Step 1: Inspect the air fairing for excessive gaps prior to road-test. See following four images for examples.
Air fairing is flush no gaps are present

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IK1600232 ­ LT Air Deflector / Fairing Vibration at Highway Speeds

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Air fairing has a gap towards the center

Step 2: Road-test the vehicle with a co-worker to pinpoint the concern.

Step 3: Use soap and water to clean the affected area and air dry.

Step 4: Apply a thin layer of Bostik® SuperTrans to seal the gaps.
Water drainage is necessary around the air fairing. Do NOT make a complete seal around the air fairing.
Repairs have been made sealing the gap

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IK1600232 ­ LT Air Deflector / Fairing Vibration at Highway Speeds

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Step 5: Depending on ambient temperature let adhesive dry for approximately one hour before road-testing.

Step 6: Verify repair.

WARRANTY INFORMATION
Warranty Claim Coding:
Refer to the Warranty Coding Manual for Group and Noun Codes.

Standard Repair Time(s):
Refer to the SRT Manual for Repair Times

OTHER RESOURCES
Master Service Information Site

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Copyright © 2017 Navistar, Inc.

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