Posted by fredster on September 21, 2021 at 06:02:29 from (67.167.150.241):
In Reply to: New Chevy question posted by rrman61 on September 20, 2021 at 10:02:58:
One common problem is with the AFM 4 cylinder system. The lifters in the 4 cylinders that get deactivated have a small screen in the oil passage. If you drive with light loads often, run in 4 cyl mode often, these screens start to gum up and the problem is worse if you stretch your oil changes to 6-7K miles. It results in low oil flow to those lifters, they start to stick, then they destroy the camshaft. I have a 2016 with the 5.3, 97,000 miles and it's fine...oil change every 5K miles, I tow a lot, my truck is in 8 cyl mode a lot of the time. BIL has the same truck/engine and 2 lifters failed at 90K miles and destroyed the camshaft.....$6K later and his engine was repaired new cam, lifters and a ton of labor. He doesn't tow much and gets his oil changed when the oil life monitor says to and I'm sure way higher than 5K miles. Since learning about these issues, I have deactivated 4 cyl mode in my truck, I don't miss it at all and MPG is about the same.
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Today's Featured Article - On the Road with Dave Gohl: Auction Musings - by Dave Gohl. I was thinking the other day about all the auctions I've been to in the last few years. There've been many. Some have been very good, some have been well, disappointing to say the least. But no matter how good or bad auctions may be, we always seem to stay until the item we've come for or are interested in is on the block. I've been to some auctions near and far. I think the furthest has been the Two Cylinder 7 in the Amana Colonies last year. Lots of stuff, lots of people. I've also atten
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