Where is the expansion valve location in 2001 Nissan Maxima?
Diagnostic code P0400 on your 2000 Nissan Maxima Can I fix this myself or is it best left for the professionals?
This code is for the EGR valve. Your service engine light is also probably on. You can replace the valve if you are so inclined or pay for it to be done. See question "Where is the EGR valve located in Nissan Maxima" for location. This tells the location and part number for replacement. Also, after replacing the valve you will need to reset the service engine light, it will not automatically go off. Most…
The 1987 Nissan Maxima VG30E engine uses hydraulic valve adjusters (also known as "cam followers") which cannot be adjusted. Therefore, there is no specific valve clearance. If you hear valve noise, it could indicate that there's either excessive wear of valve train parts or clogged hydraulic adjusters.