With so much about vacuum pumps listed lately, it may pay to put a stethoscope on yours and see if thats where the noise is. If so, rebuild/replace before it takes out your timing chain....$$$$

__________________
Thanks,
Mark in NC

"Spark plugs?...We don't need no stinking spark plugs!"
1985 300SD "Der Silberne Schlitten" 420,000 mi


Wish these were diesel:
2003 Ford Club Wagon 130,000 mi