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Old 04-14-2003, 06:23 PM   #1
bjc323
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Member#: 35254
Join Date: Apr 2003
Default 94 impreza l backfire?

my 94 l just recently started to make a "popcorn maker" sound in the exhaust. this sound is most noticeable in the cat. it seems to only happen at 20 and 60 mph (about 2000rpm) and also going up hills. acelerating or backing off the gas makes this backfire stop. some days are better than others but it gets really bad after long drives. car is an auto trans with 151000 miles. is it a clogged cat? please help!
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Old 04-14-2003, 07:23 PM   #2
munkis
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Chapter/Region: Tri-State
Location: brokenmotorsports.com
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Default

when is the last time you did a tune up? specifically wires.

Does the car run anydifferent, or just makes noise?

Jay
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Old 04-15-2003, 11:49 AM   #3
bjc323
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hasn't been tuned-up in a long time. i'll try wires. it also hesitates at the same time as the noise.
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