my wrx is making a tickin sound i just got a new ej20 and new stock turbo

15

Asked by Mar 31, 2009 at 10:24 PM about the Subaru Impreza WRX STi

Question type: Car Customization

2 Answers

3,235

its pretty much impossible to give an accurate diag over the internet on a ticking noise lol

745

It is true its difficult to diagnose a ticking over the internet, but I had a ticking develop on my evo 2 months ago so I have a few suggestions. First, park the car and rev it in neutral. If the ticking is still there and varies in frequency with the rpm, then the issue is in the motor or valvetrain. If the sound only happens when the car is moving then its in the drivetrain somewhere (could be something as simple as a nail or pebble stuck in a tire ) If its coming from the engine try to isolate it to head/valvetrain or block/rotating assembly. This is much harder to do. When i was diagnosing mine, I pulled the valve cover off and found one of the lobes on the closing edge of the intake cam had a frekin piece of metal gouged out of it and it was ticking as it clicked over the roller! I'm not familiar with the valvetrain in the Scoobarus but if you have lifters and/or hyrdaulic lash adjusters check those dudes. If your car has been down for a few weeks while you were installing turbos and wotnot, then (if they are hydraulic) lash adjusters could have drained partially and failed to repressurize properly on startup. This would leave a small gap between the lifter and the rocker arm that could cause a ticking as they smack together... To fix that you need to pull the valvetrain off and bleed the lash adjusters and hope they pressurize properly the next time the car is started up. When you do start it up you need to keep the revs up higher than idle for a few minutes while the lash adjusters pressurize. They won't have enough oil pressure at idle to pressurize otherwise. Now all this is based off my knowledge of Evo's, so obviously there may be slight differences for the EJ20... the basics should be the same though.

Your Answer

Subaru Impreza WRX STi Experts

  • #1
    Brian Dombroski
    Reputation
    120
  • #2
    Tom Demyan
    Reputation
    60
  • #3
    Charlie Arledge
    Reputation
    40
View All

Related Models For Sale

Used Subaru Impreza WRX
53 Great Deals out of 1,292 listings starting at $3,365
Used Mitsubishi Lancer Evolution
20 Great Deals out of 577 listings starting at $14,000
Used Subaru WRX STI
25 Great Deals out of 1,375 listings starting at $25,962
Used Subaru WRX
67 Great Deals out of 3,686 listings starting at $17,395
Used Subaru Impreza
182 Great Deals out of 19,845 listings starting at $2,200
Used Ford Mustang
710 Great Deals out of 38,332 listings starting at $895
Used BMW M3
48 Great Deals out of 1,799 listings starting at $5,995
Used BMW 3 Series
1,172 Great Deals out of 33,355 listings starting at $1,000
Used Honda S2000
13 Great Deals out of 402 listings starting at $7,500
Used Subaru BRZ
17 Great Deals out of 900 listings starting at $11,000
Used Hyundai Genesis Coupe
61 Great Deals out of 1,281 listings starting at $5,786
Used Nissan 370Z
85 Great Deals out of 2,734 listings starting at $10,000
Used Chevrolet Camaro
425 Great Deals out of 30,915 listings starting at $3,550
Used Nissan GT-R
3 Great Deals out of 523 listings starting at $47,000
Used Honda Civic
814 Great Deals out of 73,913 listings starting at $1,400

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.