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Issue 1: When stopped a loud rattling sound can be heard which immediately subsides when shifting into neutral, or when the brake pedal is released (A/T), no heat shields are loose, any clue as to what it may be?
Issue 2: When applying the brakes, it starts slowing down fine (You feel it bite when it’s depressed approx half way), but to get the car to come to a complete stop rather than a slow roll you have to depress the pedal quite hard. Pedal feel doesn’t seem soft or spongey, nor does it vibrate at all. System had fresh fluid ran through it through the bleeders a few months ago, and the pads all around have plenty of meat on them, any clues about this one?
3: It seems to be burning outrageous amounts of gas, but it it seems to run smooth, are there any common causes for this on this line of engines?
4: Lastly, it’s due for an oil change soon and it has an OEM filter, and it’s a damn small one at that, is there a way to find out a larger capacity filter that still meets the specs for the engine, and is there any reason the mech who did the last oil change used a Subaru filter rather than an off the shelf?
Any help is greatly appreciated.
Edit: Forgot to mention, Fuel filter, air filter and PCV valve were replaced last week after noticing the horrendous consumption, no improvement.
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Are you very sure all of the heat shields are secure cus that’s what the noise sounds like to me.
The brakes, it’s hard to say. I would be sure that none of the pads or sliders are binding. Could be poor quality friction material also.
The poor fuel economy could be caused by many things. I’m not sure if you can get live data, (specifically fuel trims) out of that car or not. It would take a scan tool that reads data to observe the fuel trims to check if too much fuel is being injected into the engine.
With the oil filter…unless someone here knows a part # it would have to be researched. The thread size,gasket configuration,valving inside are all a factor.
Some places may not do too many oil changes on Subarus and might not keep a filter in stock for your car. They would be certain to find one at the dealer or could be that it was serviced last time at the dealer.
[quote=”wysetech” post=65889]Are you very sure all of the heat shields are secure cus that’s what the noise sounds like to me. [/quote]
I went under there and pulled on the heat shields, none of them had play in them, there were already hose clamps on ’em.
The brakes, it’s hard to say. I would be sure that none of the pads or sliders are binding. Could be poor quality friction material also.
It stops fine, it’s just getting it to come to a dead stop rather than letting it idle in drive at 2 MPH or so, and I don’t believe it’s a problem on the front brakes, put it in FWD and jacked it up, they stopped without a problem but that may have been because I had no load on it.
The poor fuel economy could be caused by many things. I’m not sure if you can get live data, (specifically fuel trims) out of that car or not. It would take a scan tool that reads data to observe the fuel trims to check if too much fuel is being injected into the engine.
The scan tool we have was a $100 cheapie from 2004, doesn’t even display freeze frame unless you upgrade, and my father has no plans for that, I don’t have the money.
With the oil filter…unless someone here knows a part # it would have to be researched. The thread size,gasket configuration,valving inside are all a factor.
Some places may not do too many oil changes on Subarus and might not keep a filter in stock for your car. They would be certain to find one at the dealer or could be that it was serviced last time at the dealer.
It’s a stock Subaru filter on there, and others have said online that they just took all the filters they had for their H4 NA engines and put them under one part number, which is why they now have the white, blue, and black filters – 3 filters covers the entire line of cars. It’s just a really small filter to me, and from what I’ve found, it’s smaller than the original one the engine was designed for, but it’s no longer offered. I’ve seen a post here or there about filters that meet spec but are larger, but can’t find a way to confirm it, so I’d rather not lose $10 on a filter or an engine to get an extra 2K miles between changes or some extra life out of the engine.
Thanks for the input
Everyone is always trying to consolidate part numbers to make things easier for them. That’s why we end up with “tea cup” oil filters.
Try tapping on the exhaust with a rubber mallet. That’s how i find loose shields. It could also be a coverter coming apart inside. That could cause poor fuel economy too.
[quote=”wysetech” post=65976]Try tapping on the exhaust with a rubber mallet. That’s how i find loose shields. It could also be a coverter coming apart inside. That could cause poor fuel economy too.[/quote]
I’ll try tapping the exhaust when I’m not so sore, as far as the cat goes he just had one cat replaced with a Subaru one (Cat code came up), the other one doesn’t look at all bad on the outside at least
[quote=”wysetech” post=66093]Yeah..i can relate with sore. Did it make the noise before the cat was replaced?[/quote]
No clue, my grandfather was still able to drive up until the corneal erosion a few months ago, I just got the car about two weeks ago or so.
With the filter make sure you are not looking at the trans filter. It looks just like an oil filter and if its a Subaru filter there is a good chance it is the trans filter. For the brakes I would check the adjustment of the rod between the brake booseter and the master cylinder. It may need a master cylinder. For the fuel consumption I would start with Knock sensors, they are bad about causing problems on these cars, I’ve had a 98, 01 and now a 09 Legacy Outback and have had to replace knock sensors on all 3 for this problem. That being said the a/f ratio sensor could be the cause as could 02 sensors. Hope this helps.
[quote=”jesse166062″ post=66110]With the filter make sure you are not looking at the trans filter. It looks just like an oil filter and if its a Subaru filter there is a good chance it is the trans filter. [/quote]
The trans fluid filter is inside the trans pan, I don’t see how it can be confused.
For the brakes I would check the adjustment of the rod between the brake booseter and the master cylinder. It may need a master cylinder.
It stops fine, the pedal doesn’t bleed down with the engine off and pressure applied, and that portion of the system has never been opened so it shouldn’t need adjustment.
For the fuel consumption I would start with Knock sensors, they are bad about causing problems on these cars, I’ve had a 98, 01 and now a 09 Legacy Outback and have had to replace knock sensors on all 3 for this problem. That being said the a/f ratio sensor could be the cause as could 02 sensors. Hope this helps.
If it were a shot A/F or HO2S it shouldn’t be running perfectly fine with no DTC’s, and it wouldn’t have passed inspection. As far as the knock sensor goes, there’s also no DTC on there, and it’s already been replaced once before.
Hey mate,
An alternative direction might be to look at several symptoms as part of one problem. I saw a similar high gas usage and stopping problem condition on a 96 impreza before. Can’t remember exactly what it was but some transmission issue made it accelerate anytime you would get close to stopping the car. I am thinking solenoid inside the tranny maybe?
For issue #2 it almost sounds that either the brake pads had glazed or the brake rotors had polished. Pull the wheel off and take a look at the rotors. If they are smooth and shinny there could be part of the problem. If they look semi smooth the go the next step and pull the caliper and check the pads. See if they are shinny….
[quote=”kkozlowski” post=66127]Hey mate,
An alternative direction might be to look at several symptoms as part of one problem. I saw a similar high gas usage and stopping problem condition on a 96 impreza before. Can’t remember exactly what it was but some transmission issue made it accelerate anytime you would get close to stopping the car. I am thinking solenoid inside the tranny maybe?[/quote]
That would cause the engine to either bog down or shoot up in rev, and it also isn’t accelerating, it just takes much longer to stop unless you put that extra pressure on the pedal.
[quote=”Timmy3923″ post=66151]For issue #2 it almost sounds that either the brake pads had glazed or the brake rotors had polished. Pull the wheel off and take a look at the rotors. If they are smooth and shinny there could be part of the problem. If they look semi smooth the go the next step and pull the caliper and check the pads. See if they are shinny….[/quote]
All the rotors are clearly good, have very shallow score marks as usual with any wear, but I haven’t pulled the pads, Is there any way to check it without pulling the pads, say, a K type thermocouple to each of the rotors?
Most Subaru’s have a spin on trans filter, not in the pan. The adjustment rod has nothing to do with air in the system, it does explain your brake problem. Wrong on the a/f and other sensors. It can cause a problem and still pass emissions and not have any codes.
[quote=”jesse166062″ post=66381]Most Subaru’s have a spin on trans filter, not in the pan.[/quote]
The oil filter in the store is the same one I was looking at under the car, and the filter was screwed into the block right by the oil pan, so I doubt it was the trans filter.
Edit: Checked today, it’s an oil filter, “ENGINE” is printed on the bottom of it.
The adjustment rod has nothing to do with air in the system, it does explain your brake problem.
I never said it had anything to do with air in the system, and it has never been adjusted, why should it be in need of service out of the blue?
Wrong on the a/f and other sensors. It can cause a problem and still pass emissions and not have any codes.
Eh, tossing A/F sensors at it hoping to solve a problem that it may or may not cause? Too rich for my blood. As far as the other sensors go, knock sensor was replaced already, maybe three years ago. I don’t have the cash to toss parts at it.
Put Seafoam in the tank for the past two full tanks and it seemed to cut back on usage quite substantially, but the car is now on loan to family who’s visiting. Once I get the car back I’ll start tracking mileage.
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