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NUMBER: 09-001-07
GROUP: Engine
DATE: March 14, 2007


THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 09-009-06, DATED
SEPTEMBER 09, 2006, WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL
REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS** AND INCLUDES THE
ADDITION OF A CLEAN POINT IN THE MODELS SECTION.

SUBJECT:

Intake-to-Throttle Body Joint May Cause A Whistle-Like Sound On 3.7L Engines

OVERVIEW:

This bulletin involves applying a thin bead of RTV to the intake manifold-to-throttle body

joint.
MODELS:
2007 (DR) Ram Truck (Light Duty)
2007 (HB) Durango
2007 (KA) Nitro
2007 (KJ) Liberty
2007 (ND) Dakota
2007 (WK) Grand Cherokee
2007 (XK) Commander

NOTE: ** This bulletin applies to vehicles equipped with a 3.7L engine (sales code
EKG) built on or before March 12, 2007 (MDH 0312XX). **

SYMPTOM/CONDITION:

The customer may experience a slight ** high frequency (pitch) ** whistle-like sound while
driving. This sound is not loud and may not be noticed by most drivers. The sound can
occur at any ambient or engine operating temperature. The whistle-like sound is most
noticeable under load, with a light throttle, and between 1,200 and 2,000 engine RPM's.

NOTE: ** Very few vehicles will exhibit this condition. **

DIAGNOSIS:

If the customer experiences the above condition perform the Repair Procedure.



09-001-07 -2


PARTS REQUIRED:

Qty. Part No. Description
1 04883971 Engine Sealant RTV Silicone Rubber Adhesive (one
tube will do 15 vehicles)

REPAIR PROCEDURE:

1. Disconnect and isolate the negative battery cable from the battery.
2. Remove the Electronic Throttle Control (ETC) throttle body from the intake manifold.
For detailed service information refer to TechCONNECT, select the Service Info tab >
14 -Fuel System > Fuel Injection -Gas > Throttle Body > Removal or Installation >
Throttle Body -3.7L.
3. Apply a very small diameter bead (1 mm) of RTV to the intake manifold-to-throttle
body joint. The RTV is to be applied to the lower section of the joint between the lower
two throttle body bolt attachment holes (Fig. 1). A very small amount of RTV is
needed to seal the slight space/gap on the inner surface of the joint. The gap was
created by a slight taper in the intake manifold joint surface.
NOTE: Do not apply an excessive amount of RTV to the joint.


Fig. 1 INTAKE-TO-THROTTLE BODY JOINT

1 -Intake Manifold
2 -Intake-to-Throttle Body Gasket
3 -Apply Very Small Diameter Bead Of RTV Between Two Lower Bolt Holes
4 -Two Lower Bolt Holes


-3- 09-001-07


NOTE: Over-torque of the throttle body attaching bolts may cause damage to the
throttle body.

4. Install the ETC throttle body to the intake manifold. Tighten the throttle body four
attaching bolts to 7 Nm (60 in. lbs.).
NOTE: Wipe off inside joint of any excess RTV squeeze-out.

5. Reassemble the remaining engine components.
6. Connect the negative battery cable to the battery. Set the clock to the correct time.
POLICY:

Reimbursable within the provisions of the warranty.

TIME ALLOWANCE:

Labor Operation No: Description Amount
09-50-01-96 Manifold, Intake -Apply RTV to
the Intake Manifold-to-Throttle
Body Joint (B)
0.5 Hrs.

FAILURE CODE:


ZZ Service Action
 
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