My Iprezzzza is backfiring when I shift!

Mikemar · 06-22-2001, 04:12 PM

Has anyone else had this problem? Not a loud backfire, more like a loud fart. I can hear it in the downpipe and sometimes in the muffler. Only seems to happen when I push in the clutch to shift to a higher gear. Is this common or should I get it looked at?

Car is still stock, not for too much longer though.

Car only has 6200 miles on it.

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jetfire67 · 06-22-2001, 04:19 PM

i get that too. usually when i downshift to 4th for power at relatively high speed. not sure if it's normal or not but i havent had any problems w/ my car lately.
anyone else?

Keiho · 06-22-2001, 04:50 PM

<smartass>What downpipe? Your car is NA n'est pas?

</smartass>

Fish · 06-22-2001, 04:58 PM

uh..

are you turbo'd son?

NezorF · 06-22-2001, 05:25 PM

I get the same thing on my MY01 2.5 RS. It's been doing it since about 3k miles and it now has about 8k miles. It was porbably doing it before but I never noticed it though. I read something here once that said it was normal for there to be un-burnt fuel hitting hot things in the exhaust system that caused that (fart) sound.

Now the only noise that bothers me is scratching sound coming from the front of my car. Only when I'm in gear. I think it's a diffrential though.

Hope this helps.

KillerTHC · 06-22-2001, 06:30 PM

my car makes a scratching noise from the front too (MY01) but the dealership says that its valve chatter. do any of you have this problem?

Poseidon · 06-22-2001, 06:45 PM

It would help if you told us what year and model the car is, but a backfire means the engine is running rich (too much fuel or not enough air). If it is still under warranty, take it to the dealer to get it checked out. If not, find a local non-dealership Subaru mechanic.

Jordan

RS2001 · 06-22-2001, 06:49 PM

Hmmmmm, A scratchin noise ya say?

Sorry, I'm a dork

-DAN

zzyzx · 06-22-2001, 06:50 PM

Guys, this has been well covered many times before. Do a search (now that you can,).

It's normal. It's also a lot louder when you have an aftermarket exhaust.

- Steve

SubaDan · 06-23-2001, 07:26 AM

From my research I have found that it means your running rich. I have heard that many imprezas are set up this way becuase it keeps the turbo spooled. The farting noise is the extra fuel being burned up in the cat. As for the scratching you have me. Maybe you ran over an animal or somthing,

Tats · 06-23-2001, 04:35 PM

Mmmm....that boxer pop, I was worried at first but now I love it.

Tats.

imprezadan · 06-23-2001, 08:38 PM

My cat-back Scooby Sport makes those farts sound great! My mother drove the car today, and I don't think that she liked them!
"Why would you spend time and $ making the car sound like it has a faulty exhaust?"

Tats · 06-24-2001, 01:42 PM

Some people will never understand. My wife hates that I spend so much on the car, but then she gets in it and loves it.

Tats.

imprezadan · 06-24-2001, 04:20 PM

Yeah, my friend who has never modded any of his cars drove mine last night and I think he liked it too much! He drives a Honda(stock-not cheezy) and was absolutely blown away by the fact that you don't have to keep the revs past4k when cruisin'! Torque is good Mod on!

Imprezafan1 · 06-25-2001, 02:33 AM

I was wondering because I bought an APEX N1 for my 01 Impreza. It back fires and farts when i shift too! People have told me to reset to ECU. I have not yet but its it a good idea to unscrew the battery and just let it chill for a couple hours and screw it back so it resets everything? PLease e-mail me.

06-22-2001, 04:12 PM	#1
Mikemar Scooby Newbie Member#: 7259 Join Date: Jun 2001 Location: Western MA Vehicle: 2004 Sti Stone Chip Blue	My Iprezzzza is backfiring when I shift! Has anyone else had this problem? Not a loud backfire, more like a loud fart. I can hear it in the downpipe and sometimes in the muffler. Only seems to happen when I push in the clutch to shift to a higher gear. Is this common or should I get it looked at? Car is still stock, not for too much longer though. Car only has 6200 miles on it. * Registered users of the site do not see these ads.

06-22-2001, 05:25 PM	#5
NezorF Scooby Newbie Member#: 7249 Join Date: Jun 2001 Location: Eden Prairie, MN Vehicle: 2001 Impreza 2.5 RS Black	I get the same thing I get the same thing on my MY01 2.5 RS. It's been doing it since about 3k miles and it now has about 8k miles. It was porbably doing it before but I never noticed it though. I read something here once that said it was normal for there to be un-burnt fuel hitting hot things in the exhaust system that caused that (fart) sound. Now the only noise that bothers me is scratching sound coming from the front of my car. Only when I'm in gear. I think it's a diffrential though. Hope this helps.

06-25-2001, 02:33 AM	#15
Imprezafan1 Scooby Newbie Member#: 4039 Join Date: Feb 2001 Location: San Francisco, California Vehicle: 2001 2.5 RS Black	Is it a good idea? I was wondering because I bought an APEX N1 for my 01 Impreza. It back fires and farts when i shift too! People have told me to reset to ECU. I have not yet but its it a good idea to unscrew the battery and just let it chill for a couple hours and screw it back so it resets everything? PLease e-mail me.

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06-22-2001, 04:19 PM	#2
jetfire67 Scooby Specialist Member#: 4926 Join Date: Mar 2001 Location: Everywhere and Nowhere Vehicle: 1988 FC3S 10th AE & 2009 STI	i get that too. usually when i downshift to 4th for power at relatively high speed. not sure if it's normal or not but i havent had any problems w/ my car lately. anyone else?

06-22-2001, 04:50 PM	#3
Keiho Sea to Sky - OWNED Moderator Member#: 610 Join Date: Dec 1999 Chapter/Region: VIC Location: Vancouver, BC, Canada Vehicle: 2003 Lexus IS300 Graphite Gray Pearl	<smartass>What downpipe? Your car is NA n'est pas? </smartass>

06-22-2001, 04:58 PM	#4
Fish RIP Sirkbac Member#: 869 Join Date: Feb 2000 Chapter/Region: NESIC Location: Nashua NH Vehicle: 1987 GPZ-750 TURBO 90' MX-5/11' DGM STi Sdn	uh.. are you turbo'd son?

06-22-2001, 06:30 PM	#6
KillerTHC Scooby Specialist Member#: 4942 Join Date: Mar 2001 Chapter/Region: BAIC Location: Palo Alto, CA USA Vehicle: 01 SRP 2.5 RS-T Ludespeed Stage 3 Link'd	my car makes a scratching noise from the front too (MY01) but the dealership says that its valve chatter. do any of you have this problem?

06-22-2001, 06:45 PM	#7
Poseidon Scooby Specialist Member#: 4864 Join Date: Mar 2001 Location: North Bend, WA USA Vehicle: 2004 WRX Silver	It would help if you told us what year and model the car is, but a backfire means the engine is running rich (too much fuel or not enough air). If it is still under warranty, take it to the dealer to get it checked out. If not, find a local non-dealership Subaru mechanic. Jordan

06-22-2001, 06:49 PM	#8
RS2001 Scooby Newbie Member#: 3210 Join Date: Dec 2000 Vehicle: 2001 RS Coupe Silverthorn	Hmmmmm, A scratchin noise ya say? Sorry, I'm a dork -DAN

06-22-2001, 06:50 PM	#9
zzyzx Scooby Specialist Member#: 815 Join Date: Jan 2000 Location: Florida Vehicle: 2013 Boss 302 White 2000 2.5 RS Coupe Silver	Guys, this has been well covered many times before. Do a search (now that you can,). It's normal. It's also a lot louder when you have an aftermarket exhaust. - Steve

06-23-2001, 07:26 AM	#10
SubaDan Scooby Newbie Member#: 6631 Join Date: May 2001 Location: Louisville, KY, US Vehicle: 2000 ImprezaRS Sedan Aspen White	From my research I have found that it means your running rich. I have heard that many imprezas are set up this way becuase it keeps the turbo spooled. The farting noise is the extra fuel being burned up in the cat. As for the scratching you have me. Maybe you ran over an animal or somthing,

06-23-2001, 04:35 PM	#11
Tats Scooby Specialist Member#: 5692 Join Date: Apr 2001 Chapter/Region: Tri-State Location: Lovely Florida, NY Vehicle: WTF? YES! I am better than you!	Mmmm....that boxer pop, I was worried at first but now I love it. Tats.

06-23-2001, 08:38 PM	#12
imprezadan Scooby Specialist Member#: 6935 Join Date: May 2001 Vehicle: 1999 Impreza 2.5RS Rally Blue	My cat-back Scooby Sport makes those farts sound great! My mother drove the car today, and I don't think that she liked them! "Why would you spend time and $ making the car sound like it has a faulty exhaust?"

06-24-2001, 01:42 PM	#13
Tats Scooby Specialist Member#: 5692 Join Date: Apr 2001 Chapter/Region: Tri-State Location: Lovely Florida, NY Vehicle: WTF? YES! I am better than you!	Some people will never understand. My wife hates that I spend so much on the car, but then she gets in it and loves it. Tats.

06-24-2001, 04:20 PM	#14
imprezadan Scooby Specialist Member#: 6935 Join Date: May 2001 Vehicle: 1999 Impreza 2.5RS Rally Blue	Yeah, my friend who has never modded any of his cars drove mine last night and I think he liked it too much! He drives a Honda(stock-not cheezy) and was absolutely blown away by the fact that you don't have to keep the revs past4k when cruisin'! Torque is good Mod on!