ROUGH IDLE & CHECK ENGINE LIGHT ON!!

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#11

10-05-2007, 09:04 AM

royalet

Member

Join Date: Nov 2006

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Posts: 76

RE: ROUGH IDLE & CHECK ENGINE LIGHT ON!!

Hey heres a little tip,. I have 1 2000 DTS when my check engine light came on, i turned the ignition to the on position , but not starting the car, then on the upper right corner of the instrument cluster you hold the button that says on/off and the first button that says Info at the same time, the dash will light up and it will say do you want to see all codes, hit the on/off button this will bring up history codes as well as current.

#12

02-02-2008, 08:46 PM

DocHemi

Join Date: Feb 2008

Posts: 17

RE: ROUGH IDLE & CHECK ENGINE LIGHT ON!!

Who Would have thought

HEHE

#13

11-03-2014, 06:47 PM

T_Shane31

Junior Member

Join Date: Nov 2014

Posts: 1

2004 cadillac cts

Mine just done the same thing. So I hooked my scan tool up and it gave me codes for bad O2 censor or bad catalytic converter. Well it ended up being a bad COIL. I would start with checking those.

#14

04-20-2023, 10:38 AM

Abzinho10

Junior Member

Join Date: Mar 2023

Posts: 3

Rough idle cadillac seville sts 4.6 v8 2001

Quote:

Originally Posted by deadgirl

did you ever figure out what was going on with your caddy? my baby is spending the night at the mechanic's for a very similar problem.
mine was a continuous shaking and was not very noticable. i am predicting a simple plug needs to be replaced.
some advice would be helpful just incase the mechanic tries to pull the wool over my eyes.

I had the same issue with car vibrating a lot and while stopped at the lights while in gear engine would just cut off. I replaced my idle sensor and an ignition coil car runs smooth as when bought... you can't even tell the engine's running.... engine ticking as should.