Question about 1994 Chevrolet Suburban

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How many catalytic converters do a 94 wiyh 454

How many catalytic converters does a 94 suburban 4x4 with 454 engine supposed to have

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Posted on Sep 25, 2009

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One it is on the pass side next to the frame rail

Posted on Sep 25, 2009

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I think just 1

Posted on Sep 25, 2009

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1 Answer

I have a 94 gmc suburban 1500 4x4 when it down shifts to pull a hill it loses speed. What can I do to fix it


Be sure you are not using overdrive in this situation...Power loss can be caused by a clogged catalytic convertor...(Air Filter)

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HOTMAIL.COMMY 94 CHEVY 454 GOES WELL TIL IT HEATS UP. THEN STARTS TO BACK FIRE AN LOOSES POWER AT 3000 RPM WHAT IS WRONG WITH IT?


Take it to an exhaust shop to check out the catalytic converter. May not be it, but it could be too.

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1 Answer

Will any 454 chevy motor fit into my 4x4 auto 1999 2500 suburban


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My 97 454 suburban starts fine but as i drive it or parked at engine rev up it bog down no power ,acceleration. i have replaced air filter, wires, plugs cap, rotor,fuel filter, changed oil --no engine...


have you checked the catalytic converter? mine did that to me and i replaced almost everything on the truck before i got it to a shop and they told me the convverter was shot.i put a new one on and now it runs like new again

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HOwling noise from 99 Suburban 4X4


might be one of your catalytic converters clogging up. usually happens after engine has been running for a time? mostly heard when you let off the gas pedal? does the noise appear to be coming from the transfer case area? i thought i was having tranny problems, but turned out to be one of the catalytic converters. whew....

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Suburban idling irraticly


check the catalytic converter they clog and keep them from running right.i have a 94 suburban that wqas doing the same thing and it was a clogged converter

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