Chevrolet Aveo/Kalos Failure 2011

Huy lost me hahaha walter The piston horses cannot be clean that means that there is a problem in the engine, they have to be dirty black because of combustion when they are very clean, it is usually a fuel problem since it enters a lot and cleaned, the car is more speaker than before according to the client?

If today I speak more with the owner, and he tells me that he is spending, there is a small oil leak x the multiple of admission but x time I could not advance, tomorrow I hope to change the multiple packaging.

Greetings Kikemec.

HELLO EVERYONE. Walter, you can check admission air leaks, without taking the multiple, virting water in all the areas you want to verify, with the engine running and observing if the RPM falls. If so, I would take the multiple and change of packaging, if not what. Verify with water the areas of the incentors, since it can also be a leakage of air through that area (Orings). Greetings and good luck we are in contest.

Hello everyone, Walter: That behavior you describe according to which after connecting the injury the cylinder 2 works approx and then turns off, occurs when Chek is on (P0300) deployed or when you erase the error and the ECU Motor is without codes? Or is there no difference? The other thing is that I read some very good posts of an autoral page, where there are several similar cases. More or less a third of P0300 cases, it was produced by bad contacts in the lands, especially of the ECU, another percentage was due to
CKP and/CMP problems (reviewing "teeth" where CKP (breaks, deformations, etc.) and another important percentage of misfire produced due to mechanical problems (apparently chronic problems at the level of the engine escape valves (they are attached intermittently). Incredulity began to review GM technical bulletins (former Daewoo) and report in a percentage of cases where P0300 is deployed due to this reason. OK (they definitely ruled out an electronic problem), in this case they found the failure to disassemble the exhaust multiple and observe the large waste accumulation in the exhaust valve despite the scarce km of the engine
. (300 rpm approx) so that the problem is shown to be isolated
. intermittently, it is not a new phenomenon, it occurs since there are engines
. Motor (valves) does not reach a minimum temperature so that the waste in the valve cane is incinerated and does not accumulate in this (similar to those that pass in the engine spark plug). and/or intermittent .Ademas describe a phenomenon that I did not know that it is when accumulated in the valve (by increase in weight and especially rubb Be careful at the time of diagnosis because the compression test does not always show this condition (it is not infallible) this phenomenon apparently is very increasing in cold climates in that family of engines. Servio GM (Daewoo) warn that if you change the CKP or the ECU Motor or the full engine, it is highly recommended to do CKP learning (CKP Learn procedure) if you can not stay with codes (P1336, CKP Learn Oporcedure not done.

First of all, thanks Fiat147 x your time and dedication to help.
I tell you, after having changed the multiple admission packing, there is no oil leak. The engine turns on well, but after 5 minutes the MMM fault is presented ... it occurs to me to disconnect one of the breathing hoses of the carter, blow and the fault is very clear, the tape with a finger and the 100%ok engine ok it occurs to me to look at the lid where it is filled with engine and to my surprise salt water, there is no doubt. Water, but only in the vapors, it is not noticeable in the oil rod. x End coopero the bird, after having revived you are not counting sometimes the lid did not come out white. I clean it and after about 10 min running the engine again slightly white, and accentuating, and it must be minimal because there is no refrigerant expense, but the suffering to put the engine unstable and turn on the check. With the hoses disconnected or without the oil cover the engine is 100% OK. But it's not the idea that gives it like this hahaha