hissing sound at moderate throttle
12-21-2001, 03:03 AM
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Car: 87 IROC
Engine: LB9 for the moment
Transmission: T5
hissing sound at moderate throttle
basically thats it... the car is a 92 3.1 v-6... it has been sitting for a while (almost a year while at the body shop)... just idling it sounds normal for a straight pipe exhuast (sounds like a porsche on steroids)... when you get into the throttle it makes a very noticable hissing sound... It doesn't seam to have the power it used to but I am used to driving a v-8 tpi... makes me think the cat is starting to clog up... any other thoughts???
zroc
zroc
12-21-2001, 03:35 PM
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Car: 87 IROC
Engine: LB9 for the moment
Transmission: T5
thats the first thing I looked for... no leaks... it is comming from the rear of the car, out of the tips...
zroc
zroc
12-22-2001, 08:23 PM
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Car: 87 IROC
Engine: LB9 for the moment
Transmission: T5
it sounds nothing like the fuel pump (i would call that more of a buzzing sound)... it sounds like you plugged off all but a small amout of the exhuast outlet creating a high pressure situation in the exhuast system and all of it trying to get out of the small hole... I can hear it most with the rear hatch cracked open (tried listening to it through the side windows individually) and it is definately comming out the exhuast tips... no kinks or leaks in the pipes from front to rear... anyone ever had this happen???
ps. I definately thing the power is way down... I was thinking it might be the O2 sensor dieing but I have almost convinced myself its the cat...
zroc
ps. I definately thing the power is way down... I was thinking it might be the O2 sensor dieing but I have almost convinced myself its the cat...
zroc
12-30-2001, 10:38 AM
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Originally posted by zroc
ps. I definately thing the power is way down... I was thinking it might be the O2 sensor dieing but I have almost convinced myself its the cat...
zroc [/B]
ps. I definately thing the power is way down... I was thinking it might be the O2 sensor dieing but I have almost convinced myself its the cat...
zroc [/B]
01-03-2002, 11:02 PM
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Car: Check The Sig
hey yea i have the same thing it was cold out the other day so i rolled out the car and saw the smoke coming from the I pipe im defenatly investing in some hooker cat back... gettin great props on this site.... i dunno what i would do with out this website and u guys... u make me want to spend everything to make my car kill all rice
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