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Source: Hood Bumpers and Latch Adjustment

The hood of a 2015 Colorado or Canyon may shake or flutter while driving due to misadjusted hood bumpers or the hood latch.

Use a piece of paper to check for proper contact of the outer and middle bumpers to the hood. The paper must not pull free when the hood is closed.

TIP: Do not place the paper over the headlamp. For the outboard bumpers, place the paper to the side of the headlamp and pull it over the fender. For the middle bumpers, place the paper to the front of the truck and pull it forward. (Fig. 14)


Fig 14



Bumper and Latch Adjustment

If the paper can be pulled loose, the bumpers and latch are not properly adjusted. It will be necessary to raise the outer and middle hood bumpers (2 per side) (Fig. 15, 16) until the hood is flush with the fenders. Set the height of the bumpers to 22 mm off of the bracket surface and repeat the paper test.


Fig 15


Fig 16

If there is not enough contact and the hood is flush to the fenders, temporarily mark the position of the hood latch and use a 13 mm ratchet or wrench to loosen the hood latch bolts just enough so that the latch will move but is not completely free.

Lightly tap the hood latch to lower it straight down 1 mm (do not move it left or right) and retighten to 22 Nm (16 lb.-ft.) with a torque wrench.

After lowering the hood latch, lower the two inner bumpers (one on each side of the latch) (Fig. 17, 18) by 1/4 to 1/2 turn clockwise. Repeat until the closing effort of the hood is acceptable.


Fig 17


Fig 18

Perform the paper test on the inner bumpers after latch adjustment. There should be very little to no drag to remove the paper.



Sound Deadener

If the paper cannot be pulled loose, the bumpers and latch are in adjustment. Apply Kent® Ure-Foam Expandable Foam Sound Deadener or equivalent in two locations (one per side). (Fig. 19)


Fig 19

Remove the hood insulator, if applicable, and inject foam into the second hole from the side. Aim the applicator nozzle straight to the back and begin to fill the cavity. Once half of the product has been dispensed, tilt the tip upward and slowly draw the applicator back as the last half of the foam is injected, ensuring the product is applied to the hood panel. Remove any excess foam that prevents the hood insulator from installing into the outer hole.

The following illustration shows a cross-section of the hood assembly. (Fig. 20) Apply the first half of the product in area 2. Apply the second half of the product in area 3.


Fig 20

TIP: The Kent Ure-Foam Expandable Foam Sound Deadener takes up to three days to fully cure. Advise the customer that it may take up to three days before the maximum benefits of the sound deadener are realized.

Repeat the application of the sound deadener on the other side of the hood and reinstall the hood insulator.

Refer to #PIT5340 for additional information and part numbers.

- Thanks to Jeremy Richardson
 

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Thanks for the write up Boyd !!! Mine is not bad but... Does move a little... I will adjust it using this "How To" !!!
 
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