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Old 03-25-2008, 02:32 PM   #1
shum_87
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Default couple of maintenance questions

as my car has expired it's extended warranty earlier this year, I've been doing maintenance myself. the car's running near 165K, so I'm looking into certain things and I hope some of you can answer these questions:

1) I'm changing the fuel filter soon, but is there any sense in upgrading the fuel pump? or even changing the injectors?

2) transmission and differential oil change .. easy? hard? seems like a PITA to put in new oil. rear looks easy, but how to for the front?

3) I think I'll be needing a timing belt change soon .. possible as a DIY project? can someone help me with my 4EAT 2.5RS or is it prety straight forward?

4) prior crank pulley belts .. should I change them too? go with oem belts?

5) quick question: clutches .. is there a difference in means of application for MT and AT?

all these maintenance things (excluding clutch) I can send to DD for, but I'd rather do myself.

thanks for your inputs!
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Last edited by shum_87; 03-25-2008 at 02:38 PM.
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Old 03-25-2008, 03:01 PM   #2
minifreak
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Here's my personal opinion:

1) Definitely have the injectors cleaned. If the pump is still working then just leave it.

2) Both front and rear are easy. Make sure to get the proper tool for it though.

3) Get someone else to do this for you (aka the dealer). This is something you don't want to mess up.

4) If they are still stock then change them with OEM parts.

5) Well, AT doesn't have a clutch, it has a torque converter...
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Old 03-25-2008, 03:30 PM   #3
wrxdrvr
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Everything but the timing belt I do myself and most people probably can with some common sense and a little mechanical/hands on experience...But first you need to figure out if you have a manual or an auto tranny.

1 no you don't need to change the FP
2 On the auto the trans the fluid and diff oil are different/separate
3 Dealer
4 OEM belts
5 More info needed.
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Old 03-25-2008, 05:09 PM   #4
Jockey_Girl
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Chris did my timing belt for me
it was a first time for him on a subaru and it took us under 1.5hours, went pretty smoothly.
Don't know if he's willing to do another one lol, but he can probably give you some tips if you want to do it yourself
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Old 03-25-2008, 06:50 PM   #5
Bondy007
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I just did my timing belt and crank pulley belts recently but not DIY!
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Old 03-25-2008, 07:27 PM   #6
ex_boyometric
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I recently changed my tranny and diff oil. My is a MT so tranny and front diff oil is the same. It was very easy but you just need the tools.
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Old 03-25-2008, 07:33 PM   #7
minifreak
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Quote:
Originally Posted by Jockey_Girl View Post
Chris did my timing belt for me
it was a first time for him on a subaru and it took us under 1.5hours, went pretty smoothly.
Don't know if he's willing to do another one lol, but he can probably give you some tips if you want to do it yourself
Then maybe you shouldn't be advertising
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Old 03-25-2008, 07:51 PM   #8
banman
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Quote:
Originally Posted by minifreak View Post
3) Get someone else to do this for you (aka the dealer). This is something you don't want to mess up.
Psshaw. If Yan and amarpauld and I can do it, anyone can.
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Old 03-25-2008, 09:12 PM   #9
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Quote:
Originally Posted by banman View Post
Psshaw. If Yan and amarpauld and I can do it, anyone can.
We got a good scare when those sprockets things spun though
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Old 03-25-2008, 09:30 PM   #10
Jockey_Girl
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Originally Posted by minifreak View Post
Then maybe you shouldn't be advertising

i'm sure he'll be nice and offer some help, he's just been kinda grumpy lately
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Old 03-25-2008, 09:32 PM   #11
Jockey_Girl
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Quote:
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Psshaw. If Yan and amarpauld and I can do it, anyone can.
an image of the three stooges just flashed across my mind...
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Old 03-25-2008, 10:39 PM   #12
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Quote:
Originally Posted by amarpauld View Post
We got a good scare when those sprockets things spun though
I think we were on NASIOC using the SEARCH button for a good hour before we realized everything's ok lah!

Quote:
Originally Posted by Jockey_Girl View Post
an image of the three stooges just flashed across my mind...
Looking at you just reminded me of rotten cheese!
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Old 03-25-2008, 11:00 PM   #13
Jockey_Girl
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Quote:
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Looking at you just reminded me of rotten cheese!
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Old 03-26-2008, 02:54 AM   #14
shum_87
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I think I'll stick with DD for the timing belt change. :P

has anyone changed their pcv valve? I've read up on two different threads about them and I'm very confused. one says it's next to the intake manifold, on the passenger side, while the other says I need to take apart the passenger side heads. someone snap a quick photo for me and show me the way, please??
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Old 03-26-2008, 11:46 AM   #15
banman
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Quote:
Originally Posted by shum_87 View Post
I think I'll stick with DD for the timing belt change. :P

has anyone changed their pcv valve? I've read up on two different threads about them and I'm very confused. one says it's next to the intake manifold, on the passenger side, while the other says I need to take apart the passenger side heads. someone snap a quick photo for me and show me the way, please??
^- I'm curious, too. I've been meaning to replace mine for awhile now. I think it's actually pretty easy to get to once you take off the intercooler.
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Old 03-26-2008, 12:44 PM   #16
minifreak
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Quote:
Originally Posted by banman View Post
^- I'm curious, too. I've been meaning to replace mine for awhile now. I think it's actually pretty easy to get to once you take off the intercooler.
There is no intercooler on the 2.5RS. Or is there...
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Old 03-26-2008, 01:12 PM   #17
banman
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Quote:
Originally Posted by minifreak View Post
There is no intercooler on the 2.5RS. Or is there...
Just fo' decoration, yo!
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Old 03-26-2008, 01:22 PM   #18
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Just behind and to the left (passenger side) of the coil pack

pic courtesy of kastle @ scoobymods.com
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Old 03-26-2008, 01:25 PM   #19
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Quote:
Originally Posted by banman View Post
^- I'm curious, too. I've been meaning to replace mine for awhile now. I think it's actually pretty easy to get to once you take off the intercooler.
http://www.clubwrx.net/forums/showthread.php?t=98574

I used a long 19mm socket, I don't like wrenches
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Old 03-26-2008, 01:35 PM   #20
banman
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Quote:
Originally Posted by amarpauld View Post
http://www.clubwrx.net/forums/showthread.php?t=98574

I used a long 19mm socket, I don't like wrenches
Any idea what symptoms would show up as a result of a sticky or bad PCV valve, besides oil in the intercooler? I'm probably long overdue to do this . . .
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Old 03-26-2008, 01:43 PM   #21
milkface
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^ me 3.
Oil in intercooler just doesn't look right. But any other consequences with other parts in regards?

(basically repeating what banman said)
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Old 03-26-2008, 01:46 PM   #22
shawmacs
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I had trouble with mine... as in it was confusing. I got the PCV part from Lordco, which appeared the same as the scoobymod instructions. However, once I got the intercooler off, NEITHER of the potential locations for the PCV valve was the same as the replacement valve (either end of the hose). I didn't end up changing it.
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Old 03-26-2008, 01:53 PM   #23
shawmacs
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Hmm, just read the clubwrx thread... someone said that in '04 they eliminated the PCV as a serviceable item... can anyone confirm this? They should update thier friggen maintenance schedules then!!
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Old 03-27-2008, 12:21 PM   #24
shum_87
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picked up an fuel filter + pcv valve yesterday. hopefully I'll get some time to install them this weekend.

when I went to DD, I noticed the STi blank key was selling for $60. SGp is no more than $20.

Injector cleaning - would the injector cleaning fluid (ie. the stuff you pour into your gas tank) suffice? or should i need I to take them out and have them professionally cleaned..?
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Old 03-27-2008, 12:36 PM   #25
wrxdrvr
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I would just put the cleaner into the fuel tank...
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