1996 Cadillac DeVille "emmissions light" Questions

the 96 cadillic period it acts if it dosent like to exselart then it makes a light vacumm nosie then the service emmission light is on what dose all this mean May require a new catalytic converter.

my emmission light is on Pull Codes and troubleshoot issues! Won't go away. There for a reason You need to have it scanned for codes. Autozone will do this for free.

...emmissions with service engine soon light on? codes pc0717 and pc0340 depends on your code but chances are it will not. Your car has the older OBD scanning system but you can still get a scan done at ...

My service soon light came on and the message "service emissions". What is the most likely problem hard to know if you dont have a scanner to read code. i would suggest making sure gas cap is on ...

...light will be triggered also . You can also have the emmissions test to detect High levels of Hydro Carbons . From the coolant cap location this will tell you if its a internal problem like head ...

i have a 2000 cadillac deville i have changed the map sensor fuel filter did a tune up changed the crank sensor both cleaned the throttle body and iac valve but car still stall out calmly can anyone ...

...EMMISSIONS SYSTEM and the temperature raises after that all of the time.... I have checked the codes also, and they mean nothing! Any help id appreciate it.... really need this car to start running, ...

I have a 2001 hyundai sonata, I have a light that is coming on, in the manual it says gas, exhaust light, what is that? emmission light. there is a small vapour leak in the fuel sytem of your car. ...

low power with emmission light on ,shut off runs great on restart thought emmission light still on Probably a bad oxygen sensor.

Emmissions light has come on? emmissions light has come on, what to do? Also coolant comes up on warning when starting engine quite frequently a week after topping up? you need to get it scanned, i ...