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Old 05-17-2009, 03:48 PM   #1
sleepy7666
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Member#: 211587
Join Date: May 2009
Default 98 Subaru Forester Dead...

My mom's 98 Forester is dead... It wont run. It will turn over and just violently shake then sputter out. It died on her while driving. She had it die and struggle to start up last week at Walgreens. When it died at Walgreens it had this darker grey smoke exit the tailpipe. Besides that it was running great.

Its a Manual 98 Forester with 186K on it.

I ran the OBD scanner and came up with

P0106 Pressure sensor circuit range/performance problem (low input)
P0301 Cylinder 1 Misfire Detected
P0303 Cylinder 3 Misfire Detected
P1143 Pressure sensor circuit range/performance (low)
P1507 Idle Control System Malfunction (Fail-safe)
P1520 Cooling fan relay 1 circuit (High)

After searching Nasioc and my own time left to ponder I came up with this to check on later today.

Spark Plugs
Wires
Coil Pack
Injectors
ECU Connections
Timing Belt


(I plan on changing the fuel filter as it needs to be done anyway.)

My dads response to me asking when the timing belt has been changed... "I don't think its been changed since we've owned it"... FML... You think after his 99 VW Passat lost its timing belt (2K earlier than the change period. His appointment was in 2 more days to have it changed) this November and I'm rebuilding the engine this summer. We've owned it for 5 years now. It has 186K now and my mom's put on 70K on it since buying it.

What brand and stock number for spark plugs? Saab's (My car ) are picky and I wonder if Subaru's are the same way?
Any weak pulleys that need to be changed with the timing belt? Idler Pully, Bearings...?
Coil packs... I come from Saab's simple Direct Injection Cassette (It has the coil pack/wires in one giant cassette and its a 5 min swap ... It makes life way easier. Is OEM the only way to go or whats a reputable aftermarket brand and website? Do you replace the wires when you do the coil pack?
Is B12 Chemtool ie Seafoam a good idea to run?

Where is the fuel pressure regulator?

Any thoughts or opinions?

Thanks,

Dylan
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Old 05-17-2009, 09:50 PM   #2
Qman
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Join Date: Feb 2000
Chapter/Region: NWIC
Location: Bonney Lake, Wash. USA
Vehicle:
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progress

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Quote:
Originally Posted by sleepy7666 View Post
My mom's 98 Forester is dead... It wont run. It will turn over and just violently shake then sputter out. It died on her while driving. She had it die and struggle to start up last week at Walgreens. When it died at Walgreens it had this darker grey smoke exit the tailpipe. Besides that it was running great.

Its a Manual 98 Forester with 186K on it.

I ran the OBD scanner and came up with

P0106 Pressure sensor circuit range/performance problem (low input)
P0301 Cylinder 1 Misfire Detected
P0303 Cylinder 3 Misfire Detected
P1143 Pressure sensor circuit range/performance (low)
P1507 Idle Control System Malfunction (Fail-safe)
P1520 Cooling fan relay 1 circuit (High)

After searching Nasioc and my own time left to ponder I came up with this to check on later today.

Spark Plugs
Wires
Coil Pack
Injectors
ECU Connections
Timing Belt


(I plan on changing the fuel filter as it needs to be done anyway.)

My dads response to me asking when the timing belt has been changed... "I don't think its been changed since we've owned it"... FML... You think after his 99 VW Passat lost its timing belt (2K earlier than the change period. His appointment was in 2 more days to have it changed) this November and I'm rebuilding the engine this summer. We've owned it for 5 years now. It has 186K now and my mom's put on 70K on it since buying it.

What brand and stock number for spark plugs? Saab's (My car ) are picky and I wonder if Subaru's are the same way?
Any weak pulleys that need to be changed with the timing belt? Idler Pully, Bearings...?
Coil packs... I come from Saab's simple Direct Injection Cassette (It has the coil pack/wires in one giant cassette and its a 5 min swap ... It makes life way easier. Is OEM the only way to go or whats a reputable aftermarket brand and website? Do you replace the wires when you do the coil pack?
Is B12 Chemtool ie Seafoam a good idea to run?

Where is the fuel pressure regulator?

Any thoughts or opinions?

Thanks,

Dylan
My guess would be a jumped belt. I suppose a coil pack could be going out causing a rich condition. First thing to do is to verify that the belt didn't jump or break. Then run a compression check. Verify that you have compression. Then check for spark at all four plugs. If all that checks out try a known good coil pack.
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Old 05-18-2009, 01:31 AM   #3
m0nkeyballz
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Join Date: Dec 2008
Chapter/Region: SCIC
Location: Long Beach California!
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APEX SILVER

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headgasket .
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Old 05-18-2009, 08:31 AM   #4
Patrick Olsen
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Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
Vehicle:
1997 Legacy 2.5GT
QuickSilver Metallic

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Quote:
Originally Posted by sleepy7666 View Post
My mom's 98 Forester is dead... It wont run. It will turn over and just violently shake then sputter out. It died on her while driving. She had it die and struggle to start up last week at Walgreens.
Maybe the timing belt jumped a couple teeth (the first time it died) and this time the belt is completely toast or jumped far enough that it won't start anymore?

Quote:
Originally Posted by sleepy7666 View Post
What brand and stock number for spark plugs? Saab's (My car ) are picky and I wonder if Subaru's are the same way?
Any weak pulleys that need to be changed with the timing belt? Idler Pully, Bearings...?
Coil packs... I come from Saab's simple Direct Injection Cassette (It has the coil pack/wires in one giant cassette and its a 5 min swap ... It makes life way easier. Is OEM the only way to go or whats a reputable aftermarket brand and website? Do you replace the wires when you do the coil pack?
Is B12 Chemtool ie Seafoam a good idea to run?

Where is the fuel pressure regulator?

Any thoughts or opinions?
- Spark plug opinions vary widely. Interestingly enough, in my '97 2.5GT Owner's Manual (same DOHC EJ25D as your Mom's '98 Forester) they list a single spark plug option for the EJ25, but they list 3 or 4 options for the same year EJ22. I've used a variety over the years and have never had any issues with any brand.

- Some guys change out all the idlers when they do the timing belt. With 180k+ miles it probably wouldn't hurt. New tensioner, tensioner pulley, and 2 idlers. Get them through RockAuto.com - exact same parts as the OEM, and they cost about 2/3 as much.

- Coil pack is a no-brainer swap, but is separate from the plug wires. The flat engine design makes replacing both pretty easy.

- Fuel pressure regulator is on the back (firewall) end of the passenger side fuel rail.

Pat Olsen
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Old 05-18-2009, 01:30 PM   #5
yarrgh
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Member#: 80465
Join Date: Jan 2005
Chapter/Region: RMIC
Location: Aurora, CO
Vehicle:
2001 2.5RS
Black Diamond Pearl

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you mention replacing the fuel filter, but how is the fuel pump? if you leave a clogged filter in for long, the pump will just have to push all the harder, wearing it out quicker. It may be pumping, but is there enough pressure? Just a thought.
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Old 05-20-2009, 12:38 AM   #6
sleepy7666
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Join Date: May 2009
Default

Belt is intact and has tension. Cleaned Throttlebody. Replaced Coil Pack and Spark Plugs.... No start... Tested each wire for spark. Has Spark. Check Injectors for pressure... Squirts fuel plenty well...

The only conclusion I can reach is the timing belt jumped time and now needs to be redone... Is this correct? Tomorrow I'm talking to area mechanics on labor cost...
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Old 05-20-2009, 11:23 AM   #7
Back Road Runner
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2004 Forester STI
Silver

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How bad does the belt look? Heavily cracked? Just a note, the belt is supposed to be replaced every 100k miles.
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Old 05-20-2009, 04:43 PM   #8
Jerry Xu
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Member#: 36629
Join Date: May 2003
Location: Baltimore Maryland
Vehicle:
07 2.5i
Regularly Being Modified

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Quote:
Originally Posted by sleepy7666 View Post
Belt is intact and has tension. Cleaned Throttlebody. Replaced Coil Pack and Spark Plugs.... No start... Tested each wire for spark. Has Spark. Check Injectors for pressure... Squirts fuel plenty well...

The only conclusion I can reach is the timing belt jumped time and now needs to be redone... Is this correct? Tomorrow I'm talking to area mechanics on labor cost...
Yap. As far as I understand if you have the following things, engine should at least start.
1) Spark (you have),
2) Fuel (you have),
3) Compression
4) Timing (???)
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Old 05-21-2009, 01:36 AM   #9
sleepy7666
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Member#: 211587
Join Date: May 2009
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We have compression too. The belt looks good and was in good shape as far as I could see. It was replaced at 110K miles so it should be good... Should being the key word.
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Old 10-10-2009, 12:07 AM   #10
warpspeedwrx
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sold :(

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Bump for an update. So was it the timing belt?
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