[Carrie71]

Thank you. It's been with the dealer since Friday. They are testing emissions and power train. Not impressed. Thinking of going back to a GMC.

 

[Carrie71]

This is my trouble maker....

 

[Carrie71]

O.K....Dealer just called. Said puttering noise is due to a clogged filter that was coming apart in the 1st section of the exhaust system. Hoping to get the car back tomorrow to see if this also fixes the engine missing during the 1st ten minutes of driving from a cold start.

 

[Carrie71]

Dealer claims no codes came up on the computer now or prior history. I don't know what to believe.

 

[Carrie71]

It's been at the dealer since last Friday so plenty of cold start tries.

 

[Carrie71]

Pomanzpathy and jman .....THANK YOU. They are replacing the exhaust part and the secondary cat. They ran emissions tests and checked each injector performance individually. I get to pick up the car Monday so I can do a cold start and check for mis fires. I will keep you posted. You guys are great!!

 

[Carrie71]

Went to pick up the car after 2nd cat and front section of exhaust replaced. Start up from cold and bam....still making the put put noise. Now they are checking the first cat for damage and then injectors. Over this!!

 

[Carrie71]

Unfortunately I did not record this issue on phone. The dealer replaced the first cat as well now but noise still there. They are reluctant to check for a leaking injector based on the time it takes. Trying to find other causes before that as a last resort. Been 2 weeks without my car.

 

[Carrie71]

The engine misses for the first 10 mins from cold start which is the main issue.

 

[Carrie71]

They are checking the injectors today. Fingers crossed they find something and I can get my car back.

 

[Carrie71]

Nothing. No codes thrown. They fired up a 2020 Rock Creek and it made the same noise. They are telling me it's a direct injector engine and the noise is normal. Now at 36k and out of warranty.