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What would make the Catalytic Converter on 1990 Cadillac Deville glow red even after the cat plugs wires and dist cap have been replaced?
When the convertor gets hot enough to glow red, replace it immediately, and also resolve the original cause of the problem! Chances are, your next converter will soon go bad, if the original problem is not fixed.
Catalytic convertors (Cats) normally operate between 800 and 1500 degrees without glowing red. When the convertor gets hot enough to glow red, it is extremely dangerous. It can even burn the rug above it. [Say, This happened to me and caused a fire in my car while I was parked!] God forbid if anything touches the Cat: a plastic bag, dry grass or gas fumes at a gas station. It just is not worth it to ignore such trouble.
. Check to make sure that the plug wires are installed in the proper order. If the plugs are not firing at the right time, this will cause unburned fuel to be sent through the exhaust to the Cat where it ignites, causing the converter to glow.
. According to the Cadillac service manual, this will Glow Red after a few miles of driving if the Converter is faulty or needs to be replaced. -TOM
. One should remove and clean the spark plugs about every 10k miles or so, and remove and replace the spark plugs, ignition wires, distributor cap and rotor approximately every 30k miles. To go much longer than this can, and eventually will, cause the catalytic convertor to become clogged with carbon build up.
. Be sure to ask your technician to check for good exhaust flow. There are four possibles for restricted exhaust flow: 1) The Cat is undersize. You may have replaced the Cat, and they supplied a cheaper model; 2) The Cat became defective, and the matrix collapsed; 3) the Cat or muffler is clogged; 4) one of your exhaust pipes are bent and not letting the exhaust flow correctly. Check the exhaust pipes everywhere for extreme bends, especially the tail pipe.
ANSWER. When a cat get's red hot, there is usually one reason why: Because it is always getting unburnt fuel from the engine, which accumulates (carbon), which ignites and get's charcoal-hot. Almost always, the problem originates upstream of the cat. If the O2 sensor is bad, that can be sending the wrong message to the computer. It can be due to bad plugs or bad timing (but you said you replaced the plugs, wires, distributer cap, etc). The next after those would be the ignition coils.
The next question I would ask is: Does the engine temperature guage show Hot? If so, I would suspect the ignition control module, which has alot to do with engine temperature. Try a used I.C. module from a junkyard to see if it is better (or not). Otherwise, always go with new electrical parts.
What else can I help you with?
What is the approximate cost to replace the catalytic converter on a 94 cadillac deville?
The average cost to replace a catalytic converter on a 1994 Cadillac DeVille is $700. This includes both the parts and labor.
Where are the O2 sensors on a 1996 Cadillac Sedan Deville smaller Northstar engine?
there is one before and one after the catalytic converter.
How many O2 sensors does a 2000 Cadillac deville have?
The 2000 Cadillac DeVille typically has four oxygen (O2) sensors. There are two upstream (pre-catalytic converter) sensors and two downstream (post-catalytic converter) sensors for each of the vehicle's two catalytic converters. These sensors help monitor the exhaust gases to ensure optimal engine performance and emissions control.
How much is the average cost of having a torque converter installed on a 1997 Cadillac DeVille?
I just had my torque converter replaced and the cost was $884.00 at an independent mechanic. I called the cadillac dealer and i was told that it would cost me $1350.00. I have a 1999 cadillac deville, and i can only notice a slight difference after the car was repaired.
Can you run a 1996 cadillac sedan deville without a catalytic converter?
You can and it will run fine. You will be committing a federal crime that has severe legal consequences Jail and fines can be $10.000
How Will a 2003 Cadillac DeVille run without the catalytic converter?
Running a 2003 Cadillac DeVille without a catalytic converter may cause the engine to perform poorly due to the lack of back pressure and altered exhaust flow. It could trigger the check engine light due to failing emissions tests and may lead to increased emissions, making the vehicle illegal to drive in many areas. Additionally, removing the catalytic converter can lead to potential damage to other components of the exhaust system and may affect fuel efficiency. Overall, while the car may run, it is not advisable to operate it without the catalytic converter.
How many Catalytic Convertors are there on a 1996 Cadillac Deville Sedan?
there is one
Where are the oxygen sensors located in a 2000 deville dts?
In a 2000 Cadillac DeVille DTS, the oxygen sensors are located in two main positions: one upstream (pre-catalytic converter) and one downstream (post-catalytic converter) for each bank of the engine. The upstream sensors are typically located near the exhaust manifold, while the downstream sensors are positioned after the catalytic converter in the exhaust system. Accessing them may require lifting the vehicle or removing certain components for better visibility.
What does DTS stand for in the words Cadillac DTS?
The "DTS" as in Cadillac DTS stands for DeVille Touring Sedan. The Cadillac DTS replaced the Cadillac DeVille. The Cadillac DTS was first produced in 2005.
What does it cost to fix Cadillac Deville torque converter?
code: torque converter CKT Performance Or stuck off
What damage is caused if the check emission system is not repaired on a 1996 Cadillac Sedan deVille?
O2 sensor, and catalytic converter can be ruined. You can also cause internal damage to the engine, depending on what the problem is. Have it repaired.
Where is the torque converter located on a 1999 cadillac deville?
Right behind the motor in the front of the transmission.
