Hey everyone
Im flying off to help try and solve a puzzle with a zafira owner who has had enough with his zafira.
The guy purchased the car from a dealer and before it left the yard he got them to remove the old chain kit and upgrade it.
Since he got the car from the yard 6 mthsc ago its only been in his posession fit 1 mth as its been at a mechanics with issues and they have given up on him
Basically here is what he has described to be the problem. Car drives fine when its moving but on idle itvkeeps staling and runing rough. The problem only seems to happen once the car is warm.
The car also sounds very loud out the exhaust compared to mormal and has a slight beat to it.
The mechanics have
Removed pre cat
Put new cat on
Checked furl lines, fuel tank and fuel pump
Sent ecu off for testing
Cleaned and removed egr
Checked compression (all ok)
i believe they have tried swapping the cts
Cleaned intake and throttle body.
Now they have given up.
I was thinking the timing has been installed 1 tooth out but have never actually heard a car with timing out. Will this give the car the unusual beat and tone in exhaust?