Welcome to the North American Subaru Impreza Owners Club Thursday January 18, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Bay Area Impreza Club
Go Back   NASIOC > NASIOC Chapters > Bay Area Impreza Club Forum -- BAIC

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Thread Tools Display Modes
Old 12-24-2003, 09:21 PM   #1
Scooby Newbie
Member#: 22816
Join Date: Aug 2002
Location: South San Francisco
MY99 Impreza 2.5 RS

Angry piston slap rod knock...engine overhaul

hey guys,

I have a 1999 Subaru Impreza 2.5 rs and it's been causing me alot of headache lately. In February my car started to make a quiet ticking noise when the motor was cold. Then it gradually grew louder and now it ticks all the time. I brought the car to our subaru dealer in ALASKA and they say it's a piston slap. Then they tried to tell me it was normal for the 1999's. I have an extented warranty threw subaru of america but they will no longer cover my car because they say an aftermarket intake voids out the warranty, even though the dealer already had done warranty work on the car in the past with it still on there.

So now my car is collecting dust in the garage because one of my spark plugs blew out and the threads are stripped. Everytime i try to screw one in it just breaks loose. The plug wire also burt out when i was drving on the freeway.

My options.....

I really am i need of help because i just moved to san francisco and i really don't know anyone. So i'm asking for help and advice from all of u. I talked to a japanese motor shop in south san francicso (japan parts usa ltd) and they can get me a japanese WRX engine w/ tranny and ecu for $1600. They also have a shop that will install it for $900. I also had got quotes from the dealer to fix the piston but hey want $3500 to replace the short block.

Any Suggestions???

So i guess what i asking is if any one here knows of shop to recomend or if someone is willing to help me take the motor out and have a machine shop fix it. Does anyone know of a subaru dealer here that tries to help people out and not srew them over. If anyone out there has any suggestions please reply i really need to get my car running again.
* Registered users of the site do not see these ads.
baby_rs is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 12-24-2003, 11:06 PM   #2
Scooby Specialist
Member#: 1903
Join Date: Jul 2000
Location: Bay Area, I-Speed Tech
2000 2.5 RS-T coupe
T3/04 Link'd 2 10 PSI


You can just pick up a brand new EJ25. I believe we have a couple of those lying around. That would be the easiest and time efficient if you want your car running asap. As for the JDM WRX motor that shop offered you, you are going to need a wiring harness as well if you want that motor to run with your cars electrical system. 1600 is a really good price for a JDMEJ20 but i doubt its anything above a ver 5. We can help you out if you want. For more info check out our website www.i-speedusa.com

I-Speed USA
ac_gohan is offline   Reply With Quote
Old 12-24-2003, 11:16 PM   #3
Scooby Specialist
Member#: 7844
Join Date: Jun 2001
Location: NE-WI
05 STI CGM 450whp
05 FXT CGO Stock


fyi, piston slap/knock is normal when the engine is cold. if it doesnt go away once it reaches normal operating temp it may be a problem. could just be a noisy valve train.
adeliciouspizza is offline   Reply With Quote
Old 12-25-2003, 01:16 AM   #4
Subaru of Santa Cruz
Member#: 8665
Join Date: Jul 2001
Location: 1219 Soquel Ave, Santa Cruz, C

You may have diagnosed your problem without knowing it. If your spark plug is loose, it will leak compression and make a ticking noise that won't go away after warm up. I would suggest have a shop install a spark plug insert (a relatively easy job-just make sure the piston is down by inserting a screwdriver in the spark plug hole-turn over the engine by hand until the piston is down-apply grease to the insert tap to catch most of the shavings). Anyone who has worked on an old VW motor knows this trick. It's way cheaper than overhauling the the motor, and you havn't got anything to lose by trying it. Also, try running a bottle of Techron additive per tankful of gas for 2 tankfuls. This will clean out any carbon build up on the valves or combustion chambers (another common cause of ticking noise). The best rule of thumb is "try the easy stuff first".
Good luck-
Bruce - Subaru of Santa Cruz
Subaru of Santa Cruz is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Some knocking...rod knock or piston slap? mtcs Built Motor Discussion 41 12-03-2012 06:47 AM
possible piston slap or knock at cold start?? Flyin_Hayn Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 13 12-31-2009 05:57 PM
piston slap? tensioner? knock/tick sound smurfwrx Service & Maintenance 14 10-19-2007 08:47 AM
Piston Slap vs Knock. OIL ? hernan Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 4 09-20-2004 09:08 PM
Piston slap on 98 engines? Ru fan Normally Aspirated Powertrain 16 03-28-2002 05:02 PM

All times are GMT -4. The time now is 10:36 AM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.