Daewoo Trouble AGAIN!!!!

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Daewoo Trouble AGAIN!!!!

Hey Guys
My Daewoo is giving me this problem, its fine on CNG but when on Petrol it gives thick black smoke, and the car dies down with missing. When later plugs were unscrewed they were all black :s
On CNG and On Petrol too the car is Accelarated more than normal (high RPMs) can't seem to come down, as the mechanic tried.
Anyways being in Multan, the retarded half brained F***ing mechanics are still tinkering around to find out whats wrong. No one seems to understand how to manage this car here.
Anyways
The things that are done are as follows:
Fuel Line checked and Fuel Filter cleaned.
Changed Air Filter.
There is a Fuel injector, and there are rubber rings aroung it 2 of them, the mechanic told me that the rings are loose, now he is off to surch for those rings :s.

The car is giving me a BIG BIG headache only because of poor treatment of the Mechanics.

Any suggestions as to what might be wrong with it ?

Gari.pk User 4050 asked on 13 Jul 2010 12:47:43 pm

1 Answer

234 views |

Maani - on 13 Jul 2010 12:47:54 pm

Black smoke coming out of the exhaust is a sign of rich air/fuel mixture. The blacked out plugs (are they dry black or wet black?) are caused due to similar reason...car running too rich or disproportionate petrol intake.

Dont blame the mechanics entirely...have you always serviced your car regularly?? do you know Daewoo's maintenance schedule?

Anyway...You have already replaced the air filter so i suggest that you fix the mixture as next. Tell the mechanic to clean your injector(s) of all the carbon deposits. Is the choke sticking??

I dont know why the injector O ring will loosen. it can wear or get damage but its size would not change. anyway....get a new one and make sure ur mechanic does not cheat on you by putting an old one. Are there any Daewoo dealerships that sell this?

Good luck..and let me know if you need more help.