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Why is the back converter is glowing red after changing both O2 sensors on a 2000 ford explorer xlt v6?
Wiki User
∙ 16y ago
A catalytic converter will rarely fail without a problem or malfunction occurring somewhere in the emission system in front of the converter. It is important to determine what caused the converter to fail, so that the problem can be fixed and to prevent a recurrence of the failure. The converter is super-heated due to a raw fuel condition in the exhaust flow. The excess unburned fuel ignited when it struck the hot ceramic catalyst and drove the temperature far above the normal operating condition of the converter. The ceramic catalyst is unable to with stand the extremely high temperature and begins to melt. The ceramic collapses and the converter is destroyed. The melted ceramic may block the exhaust flow and cause additional damage to the engine. A converter glowing red-hot or evidence of heat discoloration confirm this situation.
The too-rich condition that led to this converter meltdown could be the result of a number of malfunctions including faulty oxygen sensor, an incorrect fuel mixture, worn spark plugs or plug wires, a faulty check valve, incorrect ignition timing, sticking float, faulty fuel injectors, a failed fuel pressure regulator or other ignition malfunctions. An oxygen sensor failure can lead to incorrect readings of exhaust gasses. The faulty sensor can cause a too-rich or too-lean condition. Too rich and the catalyst can melt down. Too lean and the converter is unable to convert the hydrocarbons into safe elements and may not pass a state inspection.
Wiki User
∙ 16y ago
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How man o2 sensors on 97 explorer xlt 4wd 6cylinder?
My Haynes repair manual shows 2 oxygen sensors mounted between the engine and catalytic converter(s) and 2 oxygen sensors mounted after the catalytic converter(s) which are called catalyst monitors and monitor the efficiency of the catalytic converter(s) on your 1997 Explorer XLT with the 4.0 L SOHC engine
How many oxygen sensors does a 1999 ford explorer have?
On the 4.0 L OHV engine - 2 oxygen sensors - and one sensor used as a catalyst monitor for catalytic converter efficiency mounted downstream of the converter On the 4.0 SOHC engine - 2 oxygen sensors and 2 catalyst monitors
What if you still have the same symptoms after changing your catalyic converter?
Well . . . you know the problem was not caused by a bad catalytic converter. You could experiment with replacing your oxygen sensors, next . . .
How many oxygen sensors does a 2000 ford explorer have?
I could be mistaken, But I am prety certain, It has 4, one on each Y pipe and one in front of converter and one behind converter., Jamison.
Does anyone have a diagram of the locations of the o2 and catalyst sensors on a 1996 Explorer 5.0 V8?
Look on the exhaust system before and after the catalytic converter.
How many O 2 sensors does a 2000 Malibu have?
it has 2 sensors, 1 before converter another after converter in exhaust pipe.
How to I have a 1998 jeep tj and im wanting to remove the cadillac converter and im not sure what to do about the O2 sensors located front and rear of converter Is there a way to retard these sensors?
The engine will not run properly with out a functioning catalytic converter and working O2 sensors.
Is the oxygen sensor for bank 2 before or after the catalytic converter in a 1995 Ford Explorer?
As far as I know , the ( 2 ) oxygen sensors on a 1995 Ford Explorer are right in the outlets of the exhaust manifolds on both sides of the engine so they are both before the catalytic converter Bank 1 is the passenger side of the engine Bank 2 is the drivers side of the engine In a Ford Explorer
Where are the O2 sensors located?
All O2 sensors are threaded into the exhaust system at various points. Upstream O2 sensors are located before the catalytic converter(s) and downstream O2 sensors are located after the catalytic converter(s).
Does a new catalytic converter come with sensors?
No.
How many o2 sensors on 1999 ford escort 2.0l?
There are 2 oxygen sensors. One before the catalyltic converter and one after the catalyltic converter.
What controls the converter on a 1999 escort?
The oxygen sensors control the amount fuel in the engine and if it is making too many emissions the oxygen sensors will cut back on the fuel or if they are worn out they will increase the amount of fuel. The catalytic converter will eventually get plugged up if the Oxygen sensors are bad. The oxygen sensors control the converter.
