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These are my two downstream O2 sensor readings at idle. I know the graphing is probably supposed to match. I don’t have enough mechanical understanding to know if the strait line graph or the fluctuating graph is the sensor with a problem. Thanks

My 2021 5.0 lariat had a message “shift system fault” come up after being in tow mode. The truck has 155,xxx miles on it. The message now comes up every time I start the truck and I have a yellow power train wrench that is constantly on the dash. I had my local mechanic take a look at it and was...

I have a 2021 lariat 5.0. 155,xxx miles on the truck. At around 145,000 the truck started smoking out of the exhaust pretty significantly after sitting idle. Doesn’t do it unless I sit idle for about 5 mins or longer. Smoke is blue. Usually about a quart low after 2,000 miles. No leaks and I...