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How do i tell if catalic converter is bad - 1999 Ford Windstar

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4 Answers

Why does my 1997 chevy lumina smell of rotten eggs every now and then?

Catalytic converter will do that especially under load. Cat may be going out.

Jul 19, 2016 | 1997 Chevrolet Lumina

4 Answers

Check engine light began flashing, engine runs rough

How long since a tune-up?
Are there any applicable trouble codes?
What is year--make--model?

May 01, 2016 | Cars & Trucks

1 Answer

Audi A6 air con always blow very hot air coming from engine with bad smell

The smell is probably related to the catalic converter when a cat goes bad it creates a smell similar to rotten eggs. You might need to replace the catalic converter. This will improve gas mileage and performance. The hot air blowing from the AC is probably a low charge on the Freon.

Jun 01, 2017 | 2003 Audi A6

3 Answers

Can a bad downstream oxygen sensor cause a rough idle on a 2003 chevy venture

no, the downstream sensors do not feedback into the control of the engine--they only detect the effectiveness of the catalytic converters. If the sensor is detecting excess fuel, the problem could be with your fuel pressure regulator, and that would also explain the rough idle. Do you have a trouble code you can pass to me?

Dec 12, 2010 | 2003 Chevrolet Venture Passanger

1 Answer

My 96 jeep larado,6,starts n has a loud metal noise. Starts out sorta crushing metal,to metal popcorn. It speeds up n slows dwn w speed. Doesn't get better as I go. Not motor.

without hearing it for myself it hard to pin point im guessing ,broken flywheel or catalic converter guts coming loose inside,or catalic converter metal shield

Dec 01, 2010 | Jeep Grand Cherokee Cars & Trucks

1 Answer

I put 2 brand new catalic converters on last week and the light came back on.

You did not mention if you replaced the o2 sensors. Chances are if the cats were bad, the o2 sensors were also burnt up. I would recommend changing the sensors anytime you change the catalytic converters.

Nov 03, 2010 | Chevrolet Suburban 1500 Cars & Trucks

1 Answer

Catalic converter problems

You can, but the check engine light will stay on.

Apr 06, 2009 | 2003 Nissan Sentra

1 Answer

Please help

ring your main dealer and ask them they will tell you

Aug 31, 2008 | 1997 Volkswagen Passat

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