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GMC
Sierra
Exhaust
Catalytic Converter
GMC SIERRA CATALYTIC CONVERTER
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Found 4 results
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Plugged
Replace/Remove
Rotten Egg
Sulfur Smell
For About Two Months I Have Had A Pretty Strong Sulfur/rotten Egg Smell In My Truck. The Smell Comes And Goes But Seems To Get Stronger When...
Asked by
justinblanton
·
13 ANSWERS
2015
GMC SIERRA
VIDEO
How to Test a Catalytic Converter?
Instructional repair video
GUIDE
Catalytic Converter
The engine exhaust system catalytic converter was developed in the early 1970's when severe air pollution was prevalent, and was made mandatory in automobile manufacturing...
1989 GMC Sierra Clogged Cat?
My Truck Starts Right Up When The Engine Is Cold, And Idles Fine. After Driving Long Enough For The Temperature Gauge To Reach Normal...
Asked by
tkende
·
1 ANSWER
1989
GMC SIERRA
Exhaust With No Muffler Or Catalytic Converter Rides...
Truck Rides Rough And Sputters When I Get On The Gas. After The Truck Gets Hot, I Can Feel It Clear Up And Drive Better. Even The Exhaust...
Asked by
Bigjohn01
·
5 ANSWERS
1996
GMC SIERRA
2003 GMC Sierra Catalytic Converter Problem
My Check Engine Light Came On Showing Catalytic Converter Bad Bank One. I Replaced The Whole Y-pipe Including Both Catalytic Converters. I...
Asked by
jasonall
·
3 ANSWERS
2003
GMC SIERRA
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