The teal obs truck is broken, is this the end of the Gmc Sierra?

[@diegomarquez9523]

I believe you can take off the valve covers and tighten the rockers with it turned on. My truck sometimes makes that noise too

[@Adi.garciia]

I will have to try that out thanks for the tip

[@gilchevy]

i heard of adding some atf for a bit then change oil it cleans it up i never tried that before though

[@Adi.garciia]

Hmm maybe🤔

[@MrAdrian1018]

Where u get bed cover and was it hard to put on

[@Adi.garciia]

I got it from ebay it was around $250 and no its easy to take off and on it has these hooks that go along the inside of the bed you screw them tight