I have never done work on my car before except adding oil and a few other basic things. The vehicle has run great up until now, its just always had some oil consumption. The tail pipe is quite sooty and oily on the inside.
I did some research and it indicated that if there isn’t any colored smoke when running the engine, the PCV valve could be the cause of oil consumption. I took it to a local shop and they replaced the PCV valve (they wanted to do a $90 diagnostic but I sad no way). Its never had any kind of smoke coming out the tail pipe. Its definitely not an oil leak, I know that nature of such things because I’ve had a leaky car before. Its run great since but its been exactly a week since, and I noticed this morning that it has a “rough idle” when running. I’m not sure if I’m using such terms correctly but by rough idle I mean it chugs along.
I am getting wary of shops that just want to sell me unnecessary repairs and diagnostics but don’t know how to fix things myself. I’m a little afraid to try, I’d rather not be stranded at home. Could anyone recommend me on where to begin fixing things on my car? What tools I ought to get, where I should begin to learn?
Also if someone could figure out whats wrong with the Corolla atm that would be great.
I should mention the part they replaced the PCV with. Its a PCV1112DL.