Fuel System - Fuel Filter Contacts Fuel Tank

TECHNICAL

Bulletin No.: 08-06-04-018A

Date: April 09, 2008

Subject:
Fuel Filter Contacts Fuel Tank, Poor Clearance Between Fuel Filter and Fuel Tank (Reposition Fuel Filter Mounting Bracket)

Models:
2006-2008 Chevrolet Express Cutaway Vans
2006-2008 GMC Savana Cutaway Vans

with 139 Inch Wheelbase and 6.6L Diesel Engine (RPO LLY or LMM)

Supercede:

This bulletin is being revised to update the model years to include 2006. Please discard Corporate Bulletin Number 08-06-04-018 (Section 06 - Engine/Propulsion System).

Condition





Some customers may comment that the fuel filter contacts the fuel tank.

Correction

Reposition the fuel filter mounting bracket using the procedure below to increase clearance between the fuel filter and fuel tank.

1. Raise and support the vehicle.

2. Remove the fuel cooler assembly and secure out of the way.





3. Remove both fuel filters from the mounting bracket and secure out of the way.

4. Bend the mounting bracket tab up slightly. This will allow the bracket to slide forward.

5. Remove the mounting bracket to frame bolts.

6. Turn the mounting bracket over to allow for access to the bolt holes.





7. Add a slot to the mounting bracket as shown. The slot should be perpendicular to the current slot. The length of the slot should be 17 mm (0.669 in) with a width of 8 mm (0.315 in).

8. Install the fuel filter mounting bracket into position on the frame and loosely install the bolts. Slide the slotted side full forward and tighten the bolt. Tighten the other bolt.

Tighten

Tighten the bolts to 25 N.m (18 lb ft).

9. Bend the mounting bracket tab down over the frame.

10. Install both fuel filters to the mounting bracket.

Tighten

Tighten the bolts to 10 N.m (89 lb in).

11. Install the fuel cooler assembly.

12. The clearance between the filter and the tank should now be around 12 mm (0.472 in).

Warranty Information





For vehicles repaired under warranty, use the table.





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