Oldsmobile 88 Exhaust

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Code PO420 Catalytic Converter

1999 OLDSMOBILE 88

Replaced Both 02 Sensors. Still Getting Code Po420. How Can Your Computer Know Your Converter Is Bad When Both Sensors Are In Front Of The...

2 ANSWERS

Asked by Ronald Franklin

1995 OLDSMOBILE 88

My Car Starts Cold Pretty Good But Once It Is Warm It Does Not Start At All. After Driving Or Ideling For A While It Will Even Stall And Had...

1 ANSWER

Asked by 1995 olds 88

1989 OLDSMOBILE 88

When I Intially Start My Car, It Starts To Rattle. I Have To Let It Run For Awhile. It Smokes Every Once In A While And I Smell Gas And...

3 ANSWERS

1 IMAGE

Asked by mocha926

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