Question about 1993 Cadillac Eldorado

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The service ride control light is on in 93 eldorado.would that cause it not to pass smog?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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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

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co7196
  • 3433 Answers

SOURCE: Prerunner wont pass smog due to engine service light

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

  • 8 Answers

SOURCE: 2002 cadillac escalade service ride control light

could be a sesord mounted near airbag.need a cpc that scan caddy to see whats going on

Posted on Oct 18, 2009

nvannoy
  • 234 Answers

SOURCE: Having a problem passing a smog test on 1996 Toyota 4Runner SR5 V

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

bluebirdmate
  • 1190 Answers

SOURCE: I have a 1984 Cadillac Eldorado Biarritz. the

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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I have a 1984 Cadillac Eldorado Biarritz. the service soon light is on so I took it to aamco. they said the throttle swith was the cause for the light (the throttle switch is in the Idle speed control...


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.

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this waring means that the ride control has been unable to maintain the correct ride height, this is caused in almoast all cases by leaking suspension air springs, the last on average about 100,000 miles

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Prerunner wont pass smog due to engine service light


Try this:-
Theres a vaccum pipe tht fits on the brakes booster just under the mastercylinder probabely it may have popped out or the sensor could be faulty ....worth a try ;)

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