Knocking / Tapping sound in Engine
12-16-2005, 04:05 PM
#1
Registered User
Thread Starter
iTrader: (1)
Join Date: Oct 2003
Location: Danville
Posts: 71
Car Info: 2002 Subaru Impreza WRX - WRB
Knocking / Tapping sound in Engine
I have an 02 WRX, and it has started to get a tapping sound when it is running (from engine) popped the hood, and listened. It is consistent with revs. As the revs go up, the tapping sound gets louder and faster.
The check engine light has lit up now, and so I do not want to start the car.
Any suggestions for troubleshooting this? The car has oil, and i keep it regularly maintained. Maybe a piston broke off? (someone told me this...) i did not know this was possible?
The check engine light has lit up now, and so I do not want to start the car.
Any suggestions for troubleshooting this? The car has oil, and i keep it regularly maintained. Maybe a piston broke off? (someone told me this...) i did not know this was possible?
12-17-2005, 03:10 AM
#2
engine noise
Its hard to diagnose trouble without hearig it in pereson. High pitch ticking could be valvetrain trouble. Low knocking would suggest piston or rod damage. If you cant get help from your warranty, bring it to my shop! We're in Pleasant Hill. 925.676.2782
Good luck!
ben@twothreetuning.com
Good luck!
ben@twothreetuning.com
12-17-2005, 05:24 AM
#3
VIP Member
iTrader: (18)
Join Date: Aug 2004
Location: Subabrew Crew
Posts: 7,570
Car Info: Broken Subarus
I think there is some bad gas roaming around. I recently got a loud fluttering sound from about 3000 to 4000 rpm. It sounds to me to be coming from the throttle body. Sounds like a really bad vibration. I heard it on the highway yesterday, thought it was coming from my brake install, further investigation lead me to the throttle body. Anyone got a fix for part throttle vibration?
12-19-2005, 12:09 PM
#6
Registered User
Join Date: Jul 2005
Location: lake county, IL
Posts: 15
Car Info: 05 stg 2 wrx
I have a similar situation. I'm hearing ticking sound and the sound interval goes faster as I step on the gas. It almost sounds like putting a flexible tape hitting the fan. Is this injector sound in the cold weather? This is my first winter with this car.
12-19-2005, 12:12 PM
#7
Registered User
Thread Starter
iTrader: (1)
Join Date: Oct 2003
Location: Danville
Posts: 71
Car Info: 2002 Subaru Impreza WRX - WRB
it seems to be the lower tapping, not so much a ticking...
and i did notice loss of power... pretty signifigant loss. I was pretty nervous, so i stopped driving, and had the car towed.
and i did notice loss of power... pretty signifigant loss. I was pretty nervous, so i stopped driving, and had the car towed.
12-21-2005, 12:44 PM
#8
Registered User
Join Date: Feb 2005
Location: Hanover, PA
Posts: 41
Car Info: 2002 Subaru WRX
tapping knocking
1. start the car
2. put the e brake on
3. put the car in first gear and slowly let the ctutch out if the sound gets louder that means you have bottom end damage. If it goes away it means that the crank, rods, and pistons are fine.
4. if it gets louder do no drive it because it could let loose at any time
Hope this helps
2. put the e brake on
3. put the car in first gear and slowly let the ctutch out if the sound gets louder that means you have bottom end damage. If it goes away it means that the crank, rods, and pistons are fine.
4. if it gets louder do no drive it because it could let loose at any time
Hope this helps
Thread
Thread Starter
Forum
Replies
Last Post
dpulse2930
NorCal Classifieds
1
04-09-2011 12:18 AM
subbiedood
Suspension, Handling, and Brakes
6
03-05-2010 11:02 AM
JohnQGearhead
Engine/Power - non turbo (All non turbo Imprezas)
0
05-24-2006 09:37 PM
y2Ldude
Suby Shopping & Maintenance/Warranty
2
10-16-2005 09:51 PM
