Question about 1995 Lexus ES 300

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Converter getting cherry red about to catch fire

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Get it replaced.
It is probably blocked.

Posted on Jun 28, 2009

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My check engine light flashes when driving or just sitting in park. it will go out when car deccelarates. when flashing the rpm's go up but loses power. Fuel pump/filter? 2007 jeep patriot


This is due to a misfiring engine cylinder, have a fault code test done to determine exactly which cylinder is dead. Do not drive the car this way, it will damage the Catalytic Converter ($500 part) and can cause a fire.

Aug 30, 2016 | Jeep Cars & Trucks

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From a cold start motor runs normal up to about 5 minutes.then runs rough likes it only running on 3 cylinders and then dies and wont start. no engine light come on.


YOU HAVE A HONEST EXHAUST GUY, BUT YOU MIGHT WANT A MORE EXPERENCED MECHANIC. THAT CAN CHECK THE PROBLEM OUT CORRECTLY

Dec 20, 2014 | Cars & Trucks

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Catalytic converter turns red hot on my 2002 ford escape


The cherry red is probably due to raw gasoline being burned in the converter. Since the engine isn't running right (and I'm surprised you didn't say the Check Engine light was on), there seems to be some kind of valve timing issue or perhaps a burnt valve that is causing at least one cylinder to not fire and thus expel the fuel/air mixture into the exhaust stream. This can be confirmed with a compression check of the cylinders. If they are all low, then there is a problem with valve timing, possible a jumped belt/chain. If only one cylinder is low, then a burnt or broken valve is more likely.

Jan 15, 2014 | Ford Cars & Trucks

1 Answer

7.4 vortec number 2 cylinder dead. Getting spark. 160 lbs compression. Cat converter getting cherry red. What could the problem be?


If the fuel injector on that cylinder is supplying too much fuel it can result in a fuel-fouled plug. This will not allow for combustion even though the plug tries to fire, then the fuel will be ejected into the exhaust stream and burned in the cat. This causes the cherry red. This is something to have checked quickly. The excess fuel will damage the cylinder walls and destroy the cat.

Nov 04, 2013 | Cars & Trucks

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My car just cut off,when try to restart it spits back thru breather ,runs a little but willnot accelerate,also when it does finally start,cataylic converter gets cherry red


the cherry red catalytic converter is the sign of a complete blocked cat and needs immediately replacement. The starting problems you have are due to this situation. Change the cat and you will see improvement.

Dec 01, 2012 | 1993 Buick Century

1 Answer

S80 Volvo 2002 t6 check engine was flashing and opened hood and catalytic converter cherry red why?


You have a BLOCKED CATALYTIC CONVERTER.IMMEDIATELY RENEW IT OTHERWISE YOU CATCH FIRE. DO IT THE SOONEST POSSIBLE,

Aug 20, 2012 | Cars & Trucks

1 Answer

I have injector pulse.switched coils .still miss fire on 2/4/6/ converter is cherry red.


If the catalytic converter is cherry red there are only a few things that will cause this, extreme over-fueling causing excess unburned fuel to enter the exhaust and overheat the catalytic converter. You will need which cylinder(s) is misfiring, you can ID the problem cylinder by checking the diagnostic OBD2 fault codes, you will have a P03XX in memory, with the XX's being the cylinder number that is misfiring. The possibilities are this, you have an injector that is stuck open or a low cylinder compression issue or a very lean condition that keeps the fuel from burning like a big vacuum leak. Also address any other fault codes found in the OBD2 fault code testing. DO NOT CONTINUE TO RUN THE ENGINE TO THE POINT THE CATAYLUTIC CONVERTER TURNS CHERRY RED! YOU WILL RUIN A VERY EXPENSIVE PART IF YOY HAVEN'T ALREADY

Dec 12, 2011 | 2001 Oldsmobile Aurora

1 Answer

I HAVE a2000 windstar lx with 3.8. just put new plugs&wires cyl #5 IS LOADED with fuel and the cat converter is now getting cherry red


You may as well change the #5 Injector to start with. I imagine you rechecked the spark on that cylinder as well. Could be a cracked sparkplug too. Check routing of #5 Injector wire. If improperly placed it could pickup a pulse to inject from other cylinders and then fire constantly.
Most likely you broke loose carbon in the cylinder head when the plug was removed and then it blew carbon back to the Injector head, blocking it open.

Dec 11, 2011 | 2000 Ford Windstar

1 Answer

My car is loosing power when i drive and starts to bog...i have already changed my plugs and wires. but when i let the car idle in the drive way my catalytic converter is getting cherry red and catching on...


this is caused buy a bad 02 sensor in exhaust system. or a bad convertor. but the check engine light will be on. also you may have a plugged up convertor. if the sensor fails it will send info to pcm that it is not reading it and therefore dump to much rich exhaust into convertor.

Sep 10, 2010 | 1999 Ford Taurus

1 Answer

I have a Audi A4 1997. It will not shift past 20mph after it warms up. There is something that looks like a muffler under the hood to the left, that is getting cherry red. Could it be some kind of exhaust...


You hit the nail on the head! The cherry red thing would be your converter. Sounds like your converter is plugged the question is why. You have a 97 car so it would not be too uncommon that the converter simply broke apart inside which is causing the restriction, Or is something wrong with the furl management system that caused the engine to run rich and melt the inside of the converter. It sounds like your going to have to replace the converter and have the fuel system checked. There may be noting wrong with it but a converter usually is not cheap and better to be safe then sorry. Good luck!

Aug 27, 2010 | 1997 Audi A4

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