- Had the Service Engine Soon light come on, which I narrowed to a failed MAF.
- I replaced the MAF. which normalized performance.
- A few days later, truck's oil changed (Rotella T6) and noticed afterward that the SES light was gone. Before I left the place, I had the truck inspected sensing this rare opportunity.
- The truck was inspected and to my surprise it passed. I was told by the technician that no fault codes were detected and everything else was up to par (windows, tires, wipers, brakes, et
I am aware that all these various errors are not actually in-and-of-themselves true, but the codes are thrown because of major system problems. Some indicate air intake issues (previously solved with my replacement of cracked intake hoses and a new MAF), other indicate cylinder misfire or spark plug issues (although I replaced the spark plugs just about 1.5 years ago).
Note: There are no noticeable performance issues with the truck. No stalls, bad idling, mysterious noises or vibrations, etc.