Need assistance on 2 things I am working on the 40th FJ80.
- P0402 Code (some of the things done, cleaned throttle body, cleaned and checked TPS, checked vacuum lines, cleaned VSV on intake).
- Sqealing during accelerations (checked vacuum lines)
Thanks, Rich
Check your belts. If they were just replaced tighten the tensioner. If they look worn out replace them.
I second the checking the belt tightness. Put new ones on the 4Runner and had to go over them once more after about 100 miles.
The P0402, sounds like an stuck open EGR port. I'm not familiar enough with the engines in these trucks. Sometimes you can perform a seafoam treatment through the intake and it will help loosen things up, if not the valve will have to come off and either attempted to be cleaned or replaced.