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Subaru Impreza Engine Problems

239 messages,  Last post on Nov 15, 2009 at 2:47 PM

You are in the Subaru Impreza Maintenance & Repair Forum. Your Host is kcram

What is this discussion about? Subaru Impreza, Engine, Sedan, Wagon


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#181 of 239
hi new here need help by jimv1125
Feb 25, 2008 (4:24 pm)
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i just bought a 94 impreza i really like this car but the check eng light comes on after about 15 minutes of warmup time and 30 to 40 minutes of driving then it runs rough and it starts to burn gas i get good milage when light is out and bad when on could it be the o2 senser or map
#182 of 239
Re: hi new here need help [jimv1125] by scott011085
Feb 26, 2008 (7:03 am)
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Replying to: jimv1125 (Feb 25, 2008 4:24 pm)

I'd suggest taking your car to a car parts store that will read OBD codes and determine precisely what your problem is. Although it sounds to me like a faulting knock sensor (I had similar problems on a 2000 impreza - would have check engine light on some days, off others - car idled/ran rough when it was on). I ended up moving the knock sensor to a different thread about 2 inches away and this solved my problem. You could try running a higher octane fuel too - if your check engine light doesn't come on, then it's most likely a knock sensor issue.
#183 of 239
subaru sti engine dies when cold by daz5461
Feb 26, 2008 (8:18 am)
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have 53 sti, start car when cold, leave to tick over no problem but start and drive down road engine starts struggerling then dies or when stopping at the end of street,does this once or twice, once warm no problems at all changed plugs,coils.water temp.sensor can any one help
#184 of 239
Re: hi new here need help [jimv1125] by paisan
Feb 26, 2008 (4:59 pm)
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Replying to: jimv1125 (Feb 25, 2008 4:24 pm)

Unfortunately a 94 won't have an OBDII code in it cause it's OBDI. My guess is that it's the cat, but that's only a guess. Bring it to a dealer and have them read the code. It'll cost about $95 but it'll tell you what the code is for.
 
-mike
Motorsports and Modifications Host
#185 of 239
Re: subaru sti engine dies when cold [daz5461] by paisan
Feb 26, 2008 (4:59 pm)
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Replying to: daz5461 (Feb 26, 2008 8:18 am)

My guess is a faulty intake manifold gasket.
 
-mike
Motorsports and Modifications Host
#186 of 239
08 impreza by graz
Feb 29, 2008 (10:59 am)
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my 08 impreza just randomly started making a rattleing noise, it seems to be coming from the front on the passenger side. any suggestions?
#187 of 239
Re: 08 impreza [graz] by xwesx
Feb 29, 2008 (11:16 am)
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Replying to: graz (Feb 29, 2008 10:59 am)

Interior or exterior?
 
If interior, is it intermittent and loud or is it consistent and muffled?
#188 of 239
Re: 08 impreza [xwesx] by graz
Feb 29, 2008 (1:21 pm)
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Replying to: xwesx (Feb 29, 2008 11:16 am)

it is exterior, it kinda makes a noise like a loose exaust pipe would, but i have no problems accelerating and it doesn't get that loud.
#189 of 239
Re: 08 impreza [graz] by xwesx
Feb 29, 2008 (4:48 pm)
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Replying to: graz (Feb 29, 2008 1:21 pm)

Hmmm. Does it do it constantly? If it sounds like a loose exhaust pipe, I almost want to say "heat shield," but more information is good...

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