Replacing the check valve was fairly simple about 1.5 hours and used all the parts except the brass nozzles which should only be removed if the head comes off. The short hoses from the check valve to the block were hard as rock and easily broke. One of the brass nozzles was completely plugged.

The intercooler, on the other hand, was a bigger problem. It is much more work than simply removing the front bumper. The intercooler is well protected within the front structure and we could only remove it after removing all the radiator mounting devices including removal of the fans. It is a tight fit but pushing the rad back and up allowed the intercooler to be removed for cleaning.

Anyhow, it took 3 cans of brake cleaning fluid to clean all the oil out of the intercooler and another 2 cans to clean the other intake system components. I used a whole can of CRC SensorKleen to clean the MAF.

We stopped for the day as I also took the time to replace the A/C and PS belt but have to wait a day for the supercharger belt. These are easy jobs!

At any rate, I can hardly wait to take this car for a spin and see if all the work was worthwhile.

Hope this is helpful!

Paul

__________________
1989 300E
1999 C230 Kompressor
2005 Toyota Highlander AWD

Also owned:
1964 Chevrolet Impala (first car)
1972 Fiat 124 Sport Spider (first sports car)
1976 VW Scirocco (first new car)
1970 Pontiac Parisienne (epitome of bland)
1980 VW Scirocco (last new car)
1953 GMC 6x6 (amazingly well engineered)
1967 Austin Healey 3000
1987 F150 4x4
1978 F150
1987 VW Jetta
1992 Toyota Previa AWD
2003 Toyota Sienna
2001 Nissan Pathfinder 4WD
1949 John Deere Model M