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Subaru Impreza Engine Problems

241 messages,  Last post on Nov 26, 2009 at 5:37 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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#182 of 241
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 241
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 241
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 241
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 241
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 241
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 241
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 241
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...
#190 of 241
Re: 08 impreza [xwesx] by graz
Feb 29, 2008 (7:24 pm)
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Replying to: xwesx (Feb 29, 2008 4:48 pm)

someone else said that the heat shield might be loose and that subaru's are famous for having problems with the heat shield. it didn't make the noise on my way to work and 8 hours later when i started it, it was making that noise
#191 of 241
Re: 08 impreza [graz] by xwesx
Mar 03, 2008 (10:30 am)
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Replying to: graz (Feb 29, 2008 7:24 pm)

Yeah, that sounds like a good place to start. Unless they are very loose, heat shields are not necessarily consistent rattlers.
 
Oddly, the only problem I ever had from a heat shield on my '96 was a bent shield due to running over a large rock through a construction zone on my way up to Alaska. The bent shield rubbed against the rear driveshaft and caused it to squeal. Eventually, once we made it home, I put it up on ramps, located the point of contact, and moved it back into shape. Problem fixed.

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