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Old 04-16-2001, 02:01 PM   #1
cakagan
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Join Date: Sep 1999
Location: Chicago, IL
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1998 Impreza 2.5 RS
Black

Question MY98 Owners....Please Respond

Since it seems to me that we are few and far between, I've decided to put together our own guide. I've done tons of searches on our cars (MY98, '98, 98, DOHC, etc) in both the active and archived forums, but I'm sure I'm missing something. I'd like to list problems, fixes, mods, part numbers, anything and everything you think other '98 RS owners need/want to know about. Frankly, I'd like to know as much as possible about the car.

Please respond if you're interested in this and willing to help me compile info into something that's downloadable. I'm open to suggestions, help, whatever. Let me know...

Thanks!
-Chris
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Old 04-16-2001, 03:27 PM   #2
Ken S
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Sounds like a good idea. You may want to expand your query to include other models to get that info since they share common parts with the Impreza. For example, the 98 Forester, OB and 2.5 GT all have the same engine as the RS. Also, the Forester has had the same drivetrain as the 2.5 RS as well.

Ken

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Old 04-16-2001, 03:29 PM   #3
cakagan
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Black

Thumbs up

Good idea, Ken!

-Chris
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Old 04-16-2001, 04:48 PM   #4
yebokmj
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Being a proud owner or a MY98 RS turbo I would gladdly help. I have both Tech books for the car is you need access to that. And anything else I can help on.
Joshua
Subaru Salesman
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Old 04-16-2001, 04:52 PM   #5
cakagan
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1998 Impreza 2.5 RS
Black

Thumbs up

Thanks Joshua, I appreciate your help!

-Chris
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Old 04-16-2001, 05:23 PM   #6
bratmantlz
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what are you doing makin a book or somthing??
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Old 04-16-2001, 05:29 PM   #7
TR
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dont forget www.forcefed4.com which documents SteveS' turbo'd 98.
one weak point for certain, the head gaskets. this seems to be a problem for NA in addition to turbo'd 98's.
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Old 04-16-2001, 05:53 PM   #8
litespeed
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I just bought my son's 1998 RS. He sold it to me when he got a new car. Not a Scoobie, but very nice just the same (Type R). Mine is Black, gold wheels, no mods to speak of, except a nice new Momo shift knob and new Dunlop tires. Plan on an exhaust soon and will probably do shocks and springs when the current ones wear out. I do have a very cool trunk monkey though and that helps a lot. I'll keep checking back on the status on your project. Good luck.
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Old 04-16-2001, 07:32 PM   #9
cakagan
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1998 Impreza 2.5 RS
Black

Thumbs up

bratmantlz- I'd like to compile a '98 reference guide, so owners will know about things like weak head gaskets (thanks for the link, TR), etc.

litespeed- I've got the same car, minus the trunk monkey and shift knob (and I've got Kumho tires). I'll either be putting on STi struts, or adjustable ones when mine wear out. Don't see that happening too soon, though. I've had the car about 3.5 yrs and the car is still tight.

I'm hoping that I can gather enough info so there isn't any trial and error when choosing what mods to do. BTW, this applies to both N/A and forced induction '98 RS'. I'll be putting all the info I find into a searchable database on a website. Keep those links coming, people! Every bit of info helps!

Thanks again,
-Chris

[This message has been edited by cakagan (edited April 16, 2001).]
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Old 04-16-2001, 07:42 PM   #10
Ken S
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Chris,

I've had quite a few warranty repairs performed on my 98 Forester (2.5L DOHC, Phase I)powertrain:

- Piston overhaul for piston slap
- ECU replacement for hesitation
- 1st gear replacement due to shifter popping out
- Clutch assembly replacement for clutch chatter
- Shifter bolt replaced due to rattle in shifter

I think all of these apply to the 98 Impreza as well. Let me know if you need any specifics.

Ken
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Old 04-16-2001, 09:04 PM   #11
gtguy
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I'll check in with my '98 Legacy GT wagon, but I have nothing to say. It's run strong and true since the day I got it, pulls like an SOB with a particularly strong engine.

No problems, no worries, original clutch and all that jazz. It's just been a fantastic car.

Mods I've installed have been a custom Stromung, KVR CD rotors and CF pads with Goodridge stainless lines and SuperBlue fluid, DMS Gold coilovers, P1 wheels with Dunlop SP9000 rubber in 215/45/17.

Just signed off on a WRX wagon, and I sure hate to see my baby go.

Kevin
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Old 04-16-2001, 10:55 PM   #12
MichiganRS
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Some misc bits I have found:

From the FAQ:
A: Previous to '99 all 2.5L were DOHC and the crankshaft thrust bearing was on the #3 main bearing. This caused a see-sawing at high rpm due to the 2.5's longer stroke (everything was seemingly fine on 2.0 and 2.2 motors using this design). In addition, the 97-98 DOHC 2.5L used a piston with no skirt, which looked a bit like a pancake. This was an attempt to get better mileage, but the result was broken ring lands and excessive piston slap, not to mention decreased durability under "modified" applications.

<hr>

98s have the old bumpers a black gauges but can be upgraded.

98s also have only one o2 sensor which you can sucsessfully run an air/fuel meter without the problems of newer models.

I think its possible to run a new block with the dohc head I could be wrong but I though I saw this in a mods list? I now I saw a 2.2 running a dohc head though.

Recently I have got sevral emails from Subaru tuners saying subarus don't take to turboicharging because th ebottom end and in the dohc the bottom end is evan worse I can post the emails if you would like?


John,
98 Black Diamond
with Auto
extre extra underdog

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Old 04-16-2001, 11:00 PM   #13
MichiganRS
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Ok some more but correct me if I am wrong..

98s have open diffs

you can upgrade to the limited diff from the 00up sticks or if you have an auto subaru didnt do limited diffs til 01. Also for what I remember you will need to swap the rear axles to going by an SCC article I can barly remember. So correct me if I am wrong or do some more research before you do this mod.

<hr>

Also another New MY upgrade is the interior
Seat covers
Door Panels
Gauges

98s have black/grey cloth
newer models have black and race checkered flag pattern.
Everything is swapable but I am still investigating the gauge cluster which I am almost positive theere isnt much difference.
<hr>
Wheels
98s were the only model year to come with the gold wheels these wheels are coming more and more rare I think being that only 1500 98 RS were brought to the US. Also these were the same wheels as WRXs used.

[This message has been edited by MichiganRS (edited April 16, 2001).]
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Old 04-16-2001, 11:16 PM   #14
minix42@
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dinged up faded black

Post

don't forget about the wheel bearings... I don't know if this is a year specific problem, but I've got through a couple.

mike
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Old 04-17-2001, 07:13 AM   #15
XROLLER
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RBP

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I think having a MY98 page is and will be very informative, i'm all for it.
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Old 04-17-2001, 07:21 AM   #16
bratmantlz
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hell i am gonna be looking up on the info posted here to keep my eyes open for.
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Old 04-17-2001, 07:27 AM   #17
cakagan
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Join Date: Sep 1999
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1998 Impreza 2.5 RS
Black

Thumbs up

Wow, thanks for all the info. I'm cool with the lead tech at the dealership I get my RS serviced at, so I can maybe get him to confirm/deny some of the claims made by tuners. He has a friend who's turboed an RS, not sure what year. I'll start compiling everyting this weekend! Keep the info coming, and post any links to more info on the '98s.

I'll be cross-posting on the Legacy and Forester forums as well, directing them here...

Thanks!
-Chris
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Old 04-17-2001, 07:42 AM   #18
yebokmj
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Brilliant Red

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Actually to correct someone MY98's have two O2 sensor, I know this for sure because I just ordered two new ones because neither of mine are giving readings to the ECU. Also the MY98 ECU can run up to 5psi of boost with out any piggy backs. I did this for a short time and I only had a upgraded fuel pump.
Joshua
Subaru Salesman
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Old 04-17-2001, 08:30 AM   #19
ColinL
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Wink

heh, don't take my handiwork from the iClub FAQ as gospel though should you find evidence to the contrary.

It's good info, don't get me wrong. But I don't work for FHI or anything.
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Old 04-17-2001, 08:50 AM   #20
sen
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WR Blue

Thumbs up

This is great,

Some of the problems that I have had the was covered by the dealer are:

- leaking axels (three times)
- window scraching inside door
- knock sensor

I probely have more that i will look for.

Some cool mods was putting a 96' Legacy 60/40 seat in a 98' RS. everthing bolst up, justed needed new seat cover work.
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Old 04-17-2001, 09:12 AM   #21
dvancleve
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Diamond Gray Metallic

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I have a '97 Legacy Outback with the DOHC engine. I have never had any mechanical problems with the car. The CE light has been reset a couple times for loose gas caps and the clutch pedal squeaks intermittantly (but never at the dealer. I wish the car was sportier, but I can't complain about reliability. Oh, it is just under 42K miles.

Doug
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Old 04-17-2001, 01:10 PM   #22
Spectre23
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CBS

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Oh, I am sure the dealer monkey screwed up. Then they put a used timing belt on my car. Finally found a good mechanic that got everything fixed right. Advice: Do NOT go to the dealer after warranty is up. Find a mechanic that specializes in Subarus and use them. The one I found is great, and has been put to good use by several of my Subaru and Saab friend since I found him a couple months ago. BTW, the last tensioner was probably OK, I just had it replaced to make sure when I replaced the used timing belt the dealer put on my car. If anyone would like to bomb a dealership, I would be happy to help out (yes I am kiding...maybe)
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Old 04-18-2001, 12:10 AM   #23
cakagan
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Join Date: Sep 1999
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1998 Impreza 2.5 RS
Black

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I've had the following repairs done on my car:

-02 sensor replaced (CE light STILL keeps coming on, too)

-blown crank seal

-whole clutch mechanism replaced (clutch, pressure plate, etc.)

-wheel bearings (within first 3 mo of owning car

Oil consumption test and leak-down test performed (eats 1.5qts of oil every 1000mi), nothing found.

-Chris

[This message has been edited by cakagan (edited April 17, 2001).]
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Old 04-18-2001, 12:22 AM   #24
Spectre23
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CBS

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My '98 has almost 90,000 miles on it. The things I havehad problems with (that I can remember) are: Rear Diff blew up, Second gear vaporized, Both head gaskets blew and warped the heads, clutch went out (no big suprise there), Timing belt tensioner MUST be replaced when you replace the belt (I had 3 timing belts and 2 tensioners in 1 month), front crank case seal leakage is a common one that I too have had. Heat sheild around the cat rattles badly, gloove box hing falling off or just sagging is very common, spark plug wires seem to be hard to find and are very expensive when you do find them, rear wing stud are weak and you must be real careful when tightening them, really easy to cross thread the rear sway bar mount bolts, dash clock blew out, if you use the Subaru light weight bumper beam, you can't use the fog lights on the '98.

That's enough for now I guess http://www.team-arg.com
forgot one thing, I had the front inner CV joints (can't remember the real name for them) replaced 3 times in the first couple months of owning the car.


[This message has been edited by Spectre23 (edited April 17, 2001).]
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Old 04-18-2001, 12:28 AM   #25
cakagan
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Black

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Jesus, Spectre! I've got just under 45,000mi on my car and I'm starting to get really worried now! Now I've really gotta get this little write-up going!!

Thanks,
-Chris
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