I made a 'stage zero' list:
*Air, fuel and oil filter service
*Trans fluid flush & change
*4-wheel alignment
*Check & replace spark plugs
*PCV vacuum check/replace
*Dizzy cap, coil & leads
*Inspect & replace vacuum lines and IC piping rubber
*Replace TCV
*Test / replace 02 sensors
*Verify proper fuel flow using a fuel pressure tester and replace fuel pumps if needed
*Clean / replace injectors
*Clean intercooler / intercooler plumbing
*Compression test
All that would be a very good start, I would say only the first 4 lines on the list are done regularly, as mentioned by others. Although they get some stick, the Haynes manuals are pretty good for checklists of maintenance items.
Coolant can be checked visually for colour & with a multimeter...
https://www.volvoclub.org.uk/faq/Cooling.html
This site says 0.9 volts & above change it.
Bookmarks