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Hey I just wanted to pass this on to you guys. 90% of oil pressure issues Ive found on these 6.0 engines is the O-ring between the oil pump & pickup tube..They deteriorate or sometimes are partially torn from factory ..This causes low oil pressure due to air getting pulled in with the oil..Also on cold startup it will take along time to pickup oil causing noisy lifters ect..If you notice your oil pressure gradually gets higher as the engine gets warmer you can bet the o-ring is the culprit..I always change the PUMP and the O-ring together though because its already apart so a fresh oil pump & a timing chain is just a good idea ..UNLESS your under 150k on the odometer...We are seeing 300,000 to 500,000 miles out of these with proper maint & good synthetic oil!!! My 6.0 just turned 290,000 miles yesterday..GO CHEVY!!!
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Last edited by Built_NotBought; 09-15-2011 at 10:47 AM.