Quote:
Originally Posted by DrFerry
From GMP Performance website: "ESS Supercharger Knocking Noise
This customer had a shop local to him install an ESS supercharger kit, but after driving the car developed a knocking sound. After some investigation we found the sound to be the supercharger system's bypass valve vibrating with the pulses of engine vacuum only when the system was in EVAP purge mode. After checking for proper EVAP system operation, proper bypass valve operation, and verifying that there were no vacuum/pressure leaks we discovered that redirecting the vacuum pulses by changing a T shaped hose fitting to a Y shaped fitting solved the problem."
- See more at: http://www.gmpperformance.com/index....7#!prettyPhoto |
so basically i need to do a y shape in order to solve this knocking noise?