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Message: [QUOTE="firehunter, post: 1530320, member: 1162"] So, my wife is returning from a 1,000 mile road trip in her '02 7.3. We have owned this truck since almost new and she has put the far majority of the 293K miles on it to date. She knows this truck. She calls me on the way home and it is acting "weird", occasionally losing power, won't rev past 2K rpm even with her foot to the floor, idles rough then dies. She was close to home and with a couple of restarts was able to get the truck home. In preparation for her road trip I changed the oil/filter and fuel filter maybe 100 miles before she left - all good. I check it out today and sure enough it is exactly as she described. After the GP's cycle the engine starts crisp and idles smooth (normally) for maybe 3-4 seconds then the check engine light comes on, the engine feels like it is only running on half the cylinders, romps, and dies. I try this multiple times and it is very consistent with the symptoms especially the crisp starts and smooth idle for a few seconds. Either running out of fuel or oil I presume. I clean the IPR, no change. Check the fuel filter and pressure, all good. Then I come inside and read some threads on PSA... I read a long thread from 2018 where somewhat similar issues are being discussed and one of the last comments was a fellow asking what oil filter the OP was running and that NAPA filters had caused him issues in the past. A second post said he had heard of this too. For many, many, many years I have run only motorcraft oil filters from wal-mart ($10 ea) on both of my 7.3's. I had one NAPA filter on the shelf that was given to me a couple of years ago from a guy who sold his 7.3 and figured I would run it just to get rid of it. I used it on the wife's truck before her trip. After reading the thread I go change the oil filter to a new motorcraft unit I had here at the house and start it up. Same symptoms but it runs a bit longer before dying. I start it three more times and it runs for longer and longer each time until one time I start it, never get a check engine light and runs perfectly smooth. Full power available. I drive it for 20+ miles and it runs perfectly normal. Get it back home and start it three more times and all is good. Really? Did the NAPA filter cause all this? If so, why is this not discussed more often or am I just tardy to the party? [/QUOTE]