Question about 1993 Cadillac Eldorado
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Posted on Jan 02, 2017
SOURCE: service ride control
more than likely its a bad wheel sensor or some kind of sensor, the ride control monitors the traction and suspension, I had to replace a wheel sensor that caused the service ride control, i think the part was around 90.00 and the dealer charged around 50.00 to put it in, more than likely that is your problem, just cross your fingers to hope its nothing more
Posted on Feb 06, 2009
Not positive on this so consider only. The o2 sensor is what actually tells everything else what is going on with emmission and everything else adjusts to what info it relays. The o2 is also subjected to extreme temps and cooling cycles. So, instead of spending money on no answer diagnostism give replacement of o3 sensor so consideratio. If you choose to replace, wd40 and let exhaust cool down. Good Luck.
Posted on May 07, 2009
NOX is produced when cylinder temperatures exceed 2500 deg. The systems in place to reduce NOX are EGR and the catalytic converter.
If the number is only slightly higher than avg then I would suggest the EGR, make sure that any vacuum lines are attached and that the diaphragm moves freely, be sure not to damage the rubber inside the EGR.
Retake smog test, if numbers still out of range replace the cat.
Posted on Jan 12, 2010
Hello: The ISC motor should be adjusted. The part that screws into the larger shaft coming out of the motor should be approximately 17 mm. The code does not have to be cleared for the light to go away. You should collapse the ISC motor and check the tps it shoud be -1 to +1 best at 0. Call me if you need further assistance. I have a 1984 Cadillac service manual. 662-449-7099.
Posted on Nov 04, 2010
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