Case Number: S2323000085
Release Date: November 2023
Symptom/Vehicle Issue: Drone Noise From Bed Or Rear Of Truck While Driving At
Speeds Between 20 And 45 MPH
Customer Complaint/Technician Observation: Customer may complain of a low
frequency booming noise from the back of the vehicle driving at speeds of 20-45 mph.
The noise could also be compared to a drumming sound. Vehicle will have the MWK
multifunction tailgate option.
Discussion: A noise vibration harshness (NVH) plate will need to be fabricated to
reduce drone or noise from the vehicle. Obtain a piece of steel plate 6mm thick,
170mm x 150mm. Refer to Fig 1. Locate and drill the required holes based on the
measurements in Fig 1. All 3 holes are centered on the 150mm side of the plate. It may
be helpful to use a sharp scribe and a T-square to mark the center of the plate for the
hole centers.
Parts Required:
Locally sourced steel plate 6mm thick 150mm x 170mm.
Drill press or power drill.
Qty 2- 06511413aa M6x1x18.35 screws
3mm drill
5mm drill
6.6mm drill
M6x1 Tap
Tap handle
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online
does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the
appropriate course of action.

Contact STAR Center, or your Technical Assistance Center Via TechConnect, eCONTACT or Service Library
entry if no solution is found.
Stellantis US LLC

Version 4.5 07/22/2022

Scribe or sharp pick
Center punch
Hammer
Zinc rich primer (such as RustOleum or equivalent)
Black enamel spray paint
3m single step primer 08682 black color or equivalent
Pliogrip 7779 Adhesive
1. Using measurements from figure 1 mark, center punch, and drill the 3 hole
centers. 3mm hole will be used to fish the plate into place. The 5mm holes
once drilled will need to be tapped to M6x1. Do not use the 6.6mm drill for
these 2 holes in the plate.
2. With all 3 holes drilled and tapped, prep the plate for corrosion coating.
Remove any oils or grease with a grease and wax remover. Then apply zinc
rich primer to the plate following application instructions. Once cured apply
black spray enamel following the material’s application instructions.

This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online
does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the
appropriate course of action.

Contact STAR Center, or your Technical Assistance Center Via TechConnect, eCONTACT or Service Library
entry if no solution is found.
Stellantis US LLC

Version 4.5 07/22/2022

Fig 1
Fabricated Plate And Hole Locations.
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online
does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the
appropriate course of action.

Contact STAR Center, or your Technical Assistance Center Via TechConnect, eCONTACT or Service Library
entry if no solution is found.
Stellantis US LLC

Version 4.5 07/22/2022

3. Using a tape measure, locate the front bed bulkhead center inset rib. See Fig
2.
4. Measure up from the floor of the bed 175mm and place a paint mark or a
scribe mark. Next, measure from the first hole upwards 90mm and mark a
second hole. Center punch both hole locations and drill holes using a 6.6mm
drill. NOTE- be very careful to not drill the truck cab when the drill passes
completely through the bed bulkhead steel.
5. Use single step primer such as 3M 08682 (or equivalent) to corrosion protect
the holes drilled in the bed. Follow product applications and cure times.

Fig 2.
Front Bed Bulkhead Hole Locations To Be Drilled With 6.6mm Drill.
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online
does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the
appropriate course of action.

Contact STAR Center, or your Technical Assistance Center Via TechConnect, eCONTACT or Service Library
entry if no solution is found.
Stellantis US LLC

Version 4.5 07/22/2022

6. Apply Pilogrip 7779 to the fabricated plate. Follow the pattern in Fig 3. The
bead applied should be between 3-5mm diameter on the plate. Total width of
both beads on the plate should not exceed 43mm wide (to cover the bulkhead
rib width).

Fig 3.
Pilogrip 7779 adhesive applied to the plate in the 3-5mm bead pattern shown.

This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online
does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the
appropriate course of action.

Contact STAR Center, or your Technical Assistance Center Via TechConnect, eCONTACT or Service Library
entry if no solution is found.
Stellantis US LLC

Version 4.5 07/22/2022

7. Using a wire inserted into the 3mm hole and looped around the fabricated
painted plate, carefully fish the plate into position between the bed front
bulkhead and the cab. Start the threads of the 2 M6x1x18.35 screws
(MOPAR 06511413AA) from the inside of the bed to hold the plate in place.
Try to not disturb the adhesive bead until it is in position. Torque the bolts to
10Nm. Remove the fish wire from the plate.
8. Once the adhesive is cured, test drive to confirm the NVH noise is corrected.

This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online
does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the
appropriate course of action.

Contact STAR Center, or your Technical Assistance Center Via TechConnect, eCONTACT or Service Library
entry if no solution is found.
Stellantis US LLC

Version 4.5 07/22/2022