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Subaru Impreza Engine Problems

240 messages,  Last post on Nov 26, 2009 at 9:57 AM

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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#136 of 240
Re: Knox Sensors...keep replacing them, WHY??? [germanboypro] by ateixeira
Dec 21, 2007 (10:10 am)
Reply

Replying to: germanboypro (Dec 21, 2007 5:30 am)

For a misfire, check the spark plugs first, then the spark plug wires, then finally the ignition coil.
 
I believe the coil costs something like $80 from an on-line parts wholesaler.
#137 of 240
Re: fuel filter [germanboypro] by xwesx
Dec 21, 2007 (10:36 am)
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Replying to: germanboypro (Dec 21, 2007 5:14 am)

Regarding the temperatures and fuel mileage....
 
First, the less you idle it, the better your mileage. For example, we had a 4-day spurt of -30 to -40 temperatures earlier this week. When we warm the car up prior to driving it, such as when we take the children or out of sheer laziness, we get about 16 mpg. This time, though, I was just using it to commute, so I fired it up, let it idle for about 30 seconds, and then off I went. My fuel economy, while not stellar, was 19 mpg. In the summer months, on the same commute, it is more like 26-27 mpg.
 
Other things that help:
 
*Amsoil Series 2000 0w-30 engine oil. Fabulous stuff for winter driving. Regular 5w-30 will turn to sludge long before the Amsoil even shows signs of increased viscosity.
*Amsoil 75w-90 synthetic gear oil. If you have a manual transmission, which it looks like you do, this stuff really reduces drag in the driveline. Other synthetics probably give similar benefits; I only mention Amsoil because I have personally used it.
*Block heater and pad heaters. At temperatures below +20 degrees F, plugging in the car two hours prior to start-up will reduce fuel consumption and emissions. Of course, then your electricity bill goes up slightly. A block heater is 400 watts, and oil pan heaters are typically 75 watts. Not huge power users, but depending on how long they are on, they make a difference.
 
We pay 13.5 cents per kilowatt-hour here in Fairbanks right now, so electricity is horribly expensive. I keep my cord on a timer to minimize the electricity consumption. At 40-below, pre-warming the engine makes the difference between a flawless startup and possibly not starting at all.
#138 of 240
Re: fuel filter [xwesx] by paisan
Dec 21, 2007 (7:50 pm)
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Replying to: xwesx (Dec 21, 2007 10:36 am)

I have to second the Amsoil.
 
-mike
#139 of 240
flashing lights bother me by doofus54
Dec 22, 2007 (7:31 am)
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hey there:
I could use a little advice on this problem. My 96 Impreza has a light on the dash called ' AT TEMP'. Lately when starting from cold, the light will occasionally flash several times before staying off. As far as I can tell, only when cold starting. Anyone have a clue?
#140 of 240
Re: flashing lights bother me [doofus54] by paisan
Dec 23, 2007 (11:17 am)
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Replying to: doofus54 (Dec 22, 2007 7:31 am)

It indicates there is an AT Issue with the car. The blinks mean something but I don't know what exactly they mean.
 
-mike
#141 of 240
Re: flashing lights bother me [doofus54] by germanboypro
Dec 28, 2007 (12:53 pm)
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Replying to: doofus54 (Dec 22, 2007 7:31 am)

hey man i did some research while i was at work before i clocked out(military) not knowing what the AT sensor was...and what i can find out about it is that it a Air Temp sensor...who knows why that would go off...i lve in maine....so i know the cold part on the cars, and its not so great for them....but check your air senor make sure that it is connected right...and i look again and am a little confused on it still but a nother site said that it was a coolant like water might be in the coolant...i unno i feel like im talkin out of my ass but i have alot of probs with my ccar as well man but find somethin out keep me inform.
#142 of 240
Re: flashing lights bother me [germanboypro] by paisan
Dec 29, 2007 (5:16 am)
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Replying to: germanboypro (Dec 28, 2007 12:53 pm)

AT Temp light refers to the Automatic Transmission Temperature.
 
-mike
#143 of 240
Re: flashing lights bother me [paisan] by doofus54
Jan 02, 2008 (6:03 pm)
Reply

Replying to: paisan (Dec 29, 2007 5:16 am)

Yes but why does it flash several time before going out when the car is started, even from a cold start when there is no heat? Faulty sensor? Maintenance reminder? Problem alert? Worried about the writers strike? The tranny works perfectly, I prefer to do my own work, but know nothing about automatics.
#144 of 240
Re: flashing lights bother me [doofus54] by paisan
Jan 02, 2008 (8:19 pm)
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Replying to: doofus54 (Jan 02, 2008 6:03 pm)

A flashing AT Temp light at startup indicates a problem with the transmission. The blinks will give you a morse-code like setup and then the factory manuals can translate what the issue is.
 
-mike
#145 of 240
06 sti clutch adjustment by rally5
Jan 03, 2008 (7:57 pm)
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I am not sure if I need a new cliutch kit or if I need to just adjust the clutch. My 06 sti will go when I push on the gas but if I push to hard it will just rev to high rpms. Then it starts to smell after shifting and driving for a while. If it is just in need of adjusting, were do I find to adjust it at. Someone please help, its been 3 weeks since I have driven my car.

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