Re: Skoda Laura: Problems & solutions thread Hello to everyone who watches this post
Need advice from technical minds here on this forum for a very peculiar problem which I have been facing with my 2010 model Škoda laura 1.9 tdi PD engine driven 91000 kms, since last 3-4 months
Since the start of summer season, car’s idle RPM started shooting up from around 850 to around 1050, initially it happened only intermittently, when the car was heated and stationary on traffic lights, another problem that came with this was the steering would act up with little jerks while turning when the RPM would be high, I took the car to my trusted mechanic, to whom I have been visiting since 6-7 years, he connected the laptop and it indicated a crank sensor error, cleared the codes to check whether it’s repeating, however the error was gone and didn’t came back again, I drove the car for few days but problem was not solved
I went to him again, during this time he opened hose pipe connecting turbo to the inter cooler and there was a little bit of oil in pipe, so he diagnosed it to be a bad turbo and suggested to change turbo core, until that time there was no smoky discharge from the tail pipe as well as very little engine oil consumption during the 8000-9000 km service interval that I religiously maintained, so I was naturally little sceptical about my mechanics diagnosis but agreed to go ahead with the replacement of turbo core, however even after the replacement problem didn’t go away
Few days after turbo work I started seeing white smoke emanating from tail pipe of the car , I took it back to my mechanic he opened that hose pipe again there was substantial amount of oil present there thus he straight away indicated, that piston rings are gone and engine needs rebuild, but this time I was not going to take his advice literally and decided to take a second opinion, I went to the ASS of Škoda at my place and asked them if they can perform an engine compression test to confirm the doubt, however they didn’t had the expert to do it, but they made another diagnosis that an exhaust return pipe connected to the turbo is lose and leaking oil, they fixed that pipe and immediately after that smoky discharge was gone
I drove the car for some days, there was no smoky discharge during this time but the RPM problem would come back again intermittently when I would come back to stop at red lights, recently I got the car’s oil changed and during that change I also put liquimoly ceratec engine additive, just after that change frequency of RPM problem increased many folds, earlier RPM would increase only when the car had reached maximum temperature however now rpms would increase even when the car was cold, also they would increase not only while standing still but even when I was driving at slow speeds
Just yesterday I took the car to ASS again to check for any error codes to diagnose the problem however there weren’t any errors, technician there just raised his hands up and said he couldn’t do anything and suggested to drive the car like this only, today I took the car back to my mechanic and he again suggested that engine is picking up oil which is getting accumulated at inter cooler which chokes it and that’s why RPM increase, i got the inter cooler cleaned from him, as he suggested this will relieve the problem for few days, but to my and my mechanic’s surprise, problem came back again after driving just 1 km from my mechanic
What I think after this whole episode is piston rings most probably are fine, I think even my turbo was fine, and we changed it unnecessarily, problem is some where else, that’s why I have come to the experts here to please guide me
Thanx |