Question about 1995 Chevrolet K1500

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Engine is doging down with muffler off no hollowed cat timing perfect

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  • Chevrolet Master
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Your description is not very clear to me, but your engine, in absence of modifications, REQUIRES the back pressure provided by cat and muffler.

Gone are the olden days of disabling or removing some smog device and engine runs better. Your vehicle is designed from the tip of the air filter intake, to the tip of the exhaust, to perform its' best. Remove anything and suffer performance loss, usually. You need to recam, and make other major midifications to be able to remove cat.

You will never pass emission tests without everything on and functioning.

Posted on Oct 16, 2010

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2010 Ford F150 would suddenly loose power and only idle. Pull over shut off sit a couple minutes crank and run fine for a while then do same thing again. Wrench would show up on instrument panel


Sounds like the catalytic converter or muffler maybe getting plugged up and the computer is putting the truck in limp home mode. Did you put a scanner on the truck. You might try to remove the 02 sensor ahead of the cat and see if it runs a little better it will not be perfect but should stay running if so do an exhaust check. When the cat or muffler gets plugged it puts back pressure on the engine and won't allow the fuel to be pulled into the engine properly.

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You might have reduced the back pressure too much from hollowing the cats? See if you can get hold of some stocks to put on and test it.

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Uhhhh... it's under the truck... it's part of the exhaust system. You can buy one for $180-$220 from many online dealers like RockAuto

.Here's some reading about replacement catalytic converters and the law.Enjoy.

http://www.epa.gov/otaq/cert/factshts/catcvrts.pdf


Remember that cats are made up of precious metals inside-the cheaper ones are cheaper because they are use less of the expensive materials,and your check engine light WILL come on after a short period of time with a cheap cat.

Found direct fit cats,
http://www.thepartsbin.com/catalyti...l=751&year=2000

Alternate brand: Magnaflow 53004ca cats for the 2 upfront and used a 94006 for the center one just before the muffler.
They fit perfect and work just fine and are way cheaper than stock.
No check engine lights or anything as someone suggested, LOL! People always with doom and gloom! I never had to change an O2 sensors and the truck is running fine.

http://www.autoanything.com/exhausts-mufflers/Toyota/Tundra/111A50209A50522A0A17A94A1.aspx

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Pull the distributor. Check the gear on the bottom of it. Replace a bunch of them for wear. Causes no power and bad timing. Depending on wear. Replace the gear or the distributor.

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Hello

If you were hot gas leaving the engine you would go through the manifold, into a small pipe, then in to the catalytic converter, down a longer pipe and finally in to a muffler. So, the Cat is closer to the engine and the muffler is closer to the bumper. You only have one muffler on that car I guess is the really simple answer.

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