03-23-2005, 11:53 PM
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#1
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AF Newbie
Join Date: Jan 2005
Location: sparks, Nevada
Posts: 7
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catalytic converter
Hey all. Ive got a 99 rodeo. Im having accelleration problems, especially foing up hills.
Dealer says I need a new catalytic converter (and was kind eneough to recommend I take it elswhwere to get it done for much cheaper) and two rear O2 sensors.
My mechanic buddy says that I should do the cat first, as it may bring the O2 sensors into line. MY QUESTION: Is that true? can a faulty catalytuic converter cause loss of power and make O2 sensor misbehave? (okay, thats two questions!)
Thanks, Mike
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03-23-2005, 11:55 PM
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#2
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Isuzu Guy
Join Date: Jan 2004
Location: Madison, Wisconsin
Posts: 3,142
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Re: catalytic converter
how many miles do you have on them?
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03-24-2005, 12:25 PM
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#3
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AF Regular
Join Date: Oct 2004
Location: santa cruz,ca, California
Posts: 165
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Re: catalytic converter
I dont know if a new Cat will fix it or not, but I dont see why you dont try that. Worse comes to worse, you have to change the O2 sensors later. If you can use a socket wrench, it'll take like 5 minutes(and ~$5 for the sensor socket) to replace each O2 sensor yourself, for way less than what any mechanic would charge you.
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03-24-2005, 01:08 PM
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#4
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Isuzu Guy
Join Date: Jan 2004
Location: Madison, Wisconsin
Posts: 3,142
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Re: catalytic converter
and I think there are 2 cats under there too?
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03-24-2005, 07:09 PM
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#5
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AF Enthusiast
Join Date: Mar 2003
Location: Buffalo, New York
Posts: 3,179
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Mike, do you have the 3.2L or 2.2L engine in your 1999? if you have the 3.2L V6, you will have two catalytic converters & four oxygen sensors. Do you have a check engine light? What codes are you getting? Your downstream O2 sensors will most likely set a code if your catalytic converter(s) are not working.
G/luck
Joel
__________________
2007 Chevy Cobalt LS 4dr, auto
2008 Honda Odyssey LX chick magnet 
Gone but not forgotten  : 2001 Ford Windstar LX, 2005 Trailblazer LS 4x4, 2002 Isuzu Rodeo LS 4x4 & and many more.
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03-24-2005, 09:37 PM
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#6
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AF Enthusiast
Join Date: Nov 2003
Location: Spokane, Washington
Posts: 1,532
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I guess I'll answer his question 
Yes, a bad cat can cause power loss and O2 sensor malfunction. 
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04-29-2005, 02:26 PM
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#7
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AF Newbie
Join Date: Jan 2005
Location: sparks, Nevada
Posts: 7
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Re: catalytic converter
Quote:
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Originally Posted by Cat Fuzz
I guess I'll answer his question
Yes, a bad cat can cause power loss and O2 sensor malfunction. |
Yep, that took care of it. Oh my god, that car is runing sop well now! I dont think it was ever running at full pwer in the year that Ive owned it, and now, it kicks the boooty! Dont need O2 sensors either. Thanks for all of the input, I apreciate it.
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