Old Jul 19, 2010 | 10:49 PM
  #28 (permalink)  
BlueStorm's Avatar
BlueStorm
Forum Regular
Joined: Dec 2007
Posts: 427
Likes: 1
From: San Pedro
Default Re: Another "lifter tick" thread, with a twist

Originally Posted by Infinite
yea well, **** happens I guess.

Part of the reason the injectors are so noisy is because of how high the base fuel pressure is. The injectors are open a very short duration at idle, and the fuel pressure is so high it basically slams the injector shut when current is removed from the injector. The pintle slamming against the seat is basically what you're hearing.
that theory makes no sense, when you start up the car, it maks a loud ticking sound for about 2-3 seconds, and then it goes away after that. so are you saying the fuel pressure changes within a few seconds of start up?
 
Reply