Question about Cadillac Eldorado
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Posted on Jan 02, 2017
o2 will not make your car do that you have other issues check for secondary ignition miss or primary ignition miss sounds like you are dropping a cylinder dumping raw fuel to contaminate 02 sensor find the real problem to fix your light
Posted on Nov 22, 2008
well some people like where it is and some don't! i do on my 1997!, i assume u have a 4.6 engine? if u do the starter is under the intake manifold,on a 4.9 engine it is under the car on the left side facing the car, these can be a paine.,go to your local auto supply store and pick up a auto repair manual for your car,by Haynes,good book to own. the 4.6 starter is not that bad to tackle,hope we helped and good luck to u.
Posted on Mar 09, 2009
SOURCE: 1998 cadillac seville STS
on my 1998 Deville its located in the trunk. the panel thats is butted up to the back of the rear seat. look for some black nuts around the top of rim of the trunk, they are about 1'' long, these have to be removed first... good luck.....
Posted on Mar 10, 2009
Hello mrsalbert, my name is JShreader. Thank you for choosing fixya.com
Depending on which oxygen sensor you are looking for...there are several of them throughout the Exhaust System. I will start out by giving you a brief description of what and oxygen sensor is, and they're general purpose.
Four Heated Oxygen Sensors (HO2S) are mounted in the exhaust system where they monitor the oxygen content in the exhaust stream. There is an oxygen sensor mounted in each exhaust manifold and one on each end of the catalytic converter. the oxygen sensor located in the front exhaust manifold is the Bank 2 Sensor 1 (Front) sensor. The oxygen sensor located in the rear exhaust manifold is the Bank 1 Sensor 1 (Rear) sensor. The oxygen sensor located in the Y-pipe ahead of the catalytic converter is the Bank 1 Sensor 2 (Pre-converter) sensor. The oxygen sensor located in the catalytic converter outlet is the Bank 1 Sensor 3 (Post-converter) sensor.
An oxygen sensor acts like a battery because it creates its own signal voltage once it reaches operating temperature. This voltage is produced when the oxygen content in the exhaust stream is different than the oxygen content in the atmosphere. A lean condition (high oxygen content in exhaust) will produce a low voltage (near 0 volts) and a rich condition (low oxygen content in exhaust) will produce a high voltage (near one volt). The PCM provides a reference signal voltage (0.45 volt) and a ground to the sensor. The PCM reference voltage is necessary because the oxygen sensors do not provide their own voltage until they reach operating temperature.
the oxygen sensors also incorporate a heating element inside of the sensor housing. This heating element is energized with the ignition On and allows the sensors to reach operating temperatures quickly. The PCM can then use oxygen sensor information sooner after engine start-up.
The PCM uses oxygen sensor information during Closed Loop operation to constantly adjust fuel control to reduce exhaust emissions. Because the oxygen sensors provide information sooner after engine start-up, exhaust emissions are reduced. Faulty oxygen sensors will cause various driveability conditions and will set a DTC.
That being said...I uploaded a .pdf for you of pictures showing the locations of ALL the oxygen Sensors on your Vehicle. You can download it by clicking HERE.
I hope this helps you. If you have any more questions or need any more diagrams, please don't hesitate to ask...Thanks again, JShreader!
Posted on Apr 01, 2009
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