Posted 10 October 2006 - 10:57 AM
Tim, if you determine that it is not Piston noise, I would have to assume that it is a lifter issue.
I would start by changing my oil, leave out one qt and add a qt of Rislone. Give it about 500 miles and if this does not quiet it down, you either do not have a lifter problem or it is so severe that you will need to get out your wrenches.
Rislone is not a mechanic in a bottle but it is a wonderful product that has helped a lot of engines with lifter issues. The best thing is it will not do any harm at all by trying it.
'02 Yukon XL 5.3 4.10 Gear
True Flow CAI, Red Taylor 8.2 PowerVolt Wires, Amsoil Fluids front to rear, RA300 Filter Mag, AirLift Air Springs, PML Finned Alum. High Capacity Diff. Cover, Putnam XDR Class V Receiver, Aeroforce Interceptor Scan Gauge, Hypertech Max Energy Tuner
'71 Chevrolet Custom Deluxe SWB
350/4bbl, PS, AT, AC 100% Original, Even the Paint
100% American Iron
May the products and/or services that you provide not become incorrectly perceived as inferior to similar products and/or services offered by foreign companies as has happened with the Automotive Manufacturing Industry.
Be American, Buy American !!!