my trucks over heating

[FatCat]

Leave the cat alone. It has an O2 sensor behind it. It'll trip your check engine light. Cut the huge *** muffler out and replace it with a piece of straight pipe. That's what I did a couple days after I bought my truck. Worked great. Louder than mine in that video. That was after I put a flowmaster muffler on it because i wanted to tone it down so i could yack on the phone with the window down. Will be plenty loud enough without the muffler. Cheap to.

 

[FatCat]

It'll fail inspection. Just remove the cat, chisel out the catalyst, and stick it back on. Still there, but less restriction.

IL doesn't inspect either unless it's a commercial vehicle. The DOT bear can and will still bust you. They won't unless your really doing something stupid. Leave the cat alone. The muffler is why it's quiet. Will the muffler still on I bet removing the cat won't do much other than turn your check engine light on. Before you remove any of it take it for a good ride. Check that plenum gasket. Easiest way to tell. You'll hear detonation. It's a strange faint jingling sound for lack of a better word. Will do it mainly under a load. Lug it up a hill in OD. As low as you can get the RPM to go without downshifting. Windows up. No radio. if it's bad you'll hear it. It starts out slowly with disappearing oil but you dont see it coming out the tailpipe because it happens so slowly. Once it gets real bad you'll hear it detonating ever time you put it under load.

 

[crazzywolfie]

some truck trip the check engine light when you remove the cats and others don't. i know of many that have removed there cats and not got a check engine light. now i would have to say if you can't afford to replace the cat hollowing it out would be the best idea. last thing you want on a dodge truck is a clogged cat because it will eventually leave you stuck on the side of the road when it clogs.

 

[Doc Sprocket]

did you ever address the plenum problem? with that many miles on the engine it would have most like been leaking which would cause you to burn oil which fouls up your o2 sensor and clogs your cat which makes you get crappier than normal gas mileage.

Intake plenum? How could that cause you to burn oil?

AFAIK, it didn't burn any oil. I never saw the smoke, never had to top it up between oil changes.

As for idling in Park, did a lot of that, too. As a contractor that works all over he//'s half acre, I often spent coffee breaks, lunch breaks, etc sitting in the truck. If the weather was too hot or cold, I'd run the heat, A/C etc.

 

[OzFab]

Leave the cat alone. It has an O2 sensor behind it. It'll trip your check engine light. Cut the huge *** muffler out and replace it with a piece of straight pipe. That's what I did a couple days after I bought my truck. Worked great.

Play it safe. Simply removing the muffler will keep it legal & make it a hellova lot louder

 

[crazzywolfie]

Intake plenum? How could that cause you to burn oil?

AFAIK, it didn't burn any oil. I never saw the smoke, never had to top it up between oil changes.

As for idling in Park, did a lot of that, too. As a contractor that works all over he//'s half acre, I often spent coffee breaks, lunch breaks, etc sitting in the truck. If the weather was too hot or cold, I'd run the heat, A/C etc.

there is a steel plenum pan bolted to the bottom of an aluminum intake. the gasket usually always get blown out like in the picture i posted and obviously with the gasket blown out the engine will suck oil into the engine to be burn. lots of people are never able to tell there engine is burning oil until the cat clogs and you loose all power.

maybe you got lucky with your trans.