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Catalytic convertor is red hot

My van is stalls, runs rough and stops

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2 Answers

My check engine light and limited performance reading came on at same time, opened hood catalytic Converter red hot. What causes this problem


2 things come to mind. a plugged catalytic and the engine is running too rich and the convertor is trying to burn off the excess fuel.

Aug 13, 2015 | Cars & Trucks

2 Answers

Got a 1997 monte carlo and im having a problem with either the fuel pump or the catalytic converter as one or both are causing the car to stall at low speeds or when i stop and then takes about 20 min


You have a pressure port test on the fuel injector rails,when you stall out just cycle the key go to the test port and which is nothing but a tire valve looking,press in the shrader fuel should squirt out and just dribble out,if it dribble out you may need a fuel pump, now as for the catalytic convertor you would be complaining about no power.I beleve you dont have a plugged convertor, You are equipt with a map sensor on the under hood diagram follow the hose diagram and check to make sure this is plugged in.If anything I stating the ignition module as the culprit it is designed with a 3x reference signal,which is not calculating the proper engine speed,and it doesnt have to set a code

Mar 20, 2012 | Chevrolet Cars & Trucks

1 Answer

04 kia sorento, was running rough, changed plugs and wires, started it up, still running rough, after about 25 mins of it sitting there noticed that the passengers side exhaust around the sensor was...


At an idle, no car should have a red hot exhaust manifold. If it does, this could indicate a clogged Catalytic Converter. or a o2 sensor thats bad. I would not drive it until it gets fixed. convertor, timing, etc, just get it checked out! good-day !

Sep 26, 2011 | 2004 Kia Sorento

4 Answers

Buick running hot and cutting off.cools and runs good until it cuts off again. get red hot underneath the car


may want to have the convertor back pressure tested. sounds as if the honey comb in the convertor is breaking apart and has clogged it up.

Aug 02, 2011 | Buick LeSabre Cars & Trucks

1 Answer

Dodge dakota 95 v6 when you step on gas engine fades no power backfires loses power rough idle stalls


I would check to see if the vehicle has any stored codes by putting a scanner to it. A cause of something like this can be catalytic convertor clogging up, mass air flow sensor bad, fuel pump bad, or fuel pressure regulator bad.

You can verify fuel pressure by doing a pressure test. If the pressure is good then the fuel pump is as well. Next crimp the soft part of the return fuel line to the tank. If the pressure rises to somewhere around 90 lbs then the fuel pressure regulator is good as well. Test the mass air flow sensor by unplugging it. If the idol improves then you know it is bad.

Check the level of exhuast coming from the tail pipe. You can compair it to another vehicle with a similar size engine meaning v6 to v6 and v8 to v8. You get the point. Also check to see just how hot the exhuast is coming out. Exhuast gases should be hot but not burning hot. If it is then its a good sign your catalytic convertor is clogging.

Apr 06, 2011 | Dodge Dakota Cars & Trucks

1 Answer

1993 E300 runs great, but the transmission stalls shifting in low torque shifting like driving on side streets. It also stalls between 55 and 60 mph on the freeway. If you give it gas it shifts. Is this...


before we get into anything in depth, replace your fuel filter. one time while its running look underneath and see if your catalytic convertor is getting red hot. litterally. i hope its something this simple. little things like this will cause great big sounding issues in these cars. get back with me and let me know. happy holidays

Dec 30, 2009 | 1993 Mercedes-Benz E-Class

3 Answers

1999 Ford Windstar


Hi, Sounds like the catalytic converter is shot. It needs to go to the shop to have it checked. Best of luck to you!

Feb 09, 2009 | 1999 Ford Windstar

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