Hello All,

So this weekend I repaired a leaky oil pan, oil pickup tube, and a fresh oil change with Synthetic oil and Lucas additive. I also cleaned the lifters with some B-12 Carb cleaner ( some of the tubes that lead down to the lifter you could not see through which I figured caused that annoying ticking ). After all this work my truck now has a low oil pressure warning and sounds like a diesel truck. I didn't have these issues prior so I'm a bit stumped if it is the Oil Pressure sensor or the Oil pump. Any advice and knowledge would be appreciated.

2005 Chevy Silverado Z71
190K

 

Are you speaking about the pushrods here? What engine does your Silverado have? 5.3 liter?

 

Yes the push rods.
5.3L

 

Did the Berryman B-12 carb cleaner clean the pushrods out of all the gunk?

 

Yes a couple of the Rods had little visibility when put up to a light but after cleaning there was a significant difference.

 

You torqued the rockers back to specifications properly I assume?

 

Yes I torqued the rockers to 22lbs. what else could it be?

 

I'd go with bad lifters or the oil pump at a guesstimate myself.