Hello,

I have multiple error codes on my truck right now. Most of them have been there for about a year and havent caused any issues. Recently my speed gauge started jumping +/- 10-15 mph sometimes causing the transmission to upshift or down shift when it shouldnt. I just changed the speed sensor and it did not fix the problem. When i pulled the old one out it was covered in what looks like a metallic colored grease and had mettle shavings on it which i know is not good. What is the next step i should take?

I am new to the forum and joined after searching for 2 days for a similar issue. All help is greatly appreciated! current error codes below:
Underlined codes are some new ones that i found on the last read when i started having this issue. The rest have been there since shortly after I bought the truck a year ago and have not affected the performance of the truck.

P0174 = Fuel Trim System Lean Bank 2
P0442 = Evaporative Emission (EVAP) system small leak detected
P0724 = Brake Switch Circuit - High Input
B092 = Left side Restraints Sensor 2 (Sublfault)
U1000 = Class 2 Data Link Malfunction
P0101 = Mass Air Flow System Performance (Truck has a cold air intake on it)

 

I forgot to mention this is a 5.7L 4WD