Long story short - I was going after an 09 xc90 v8 in nice shape from a used dealer - but the valve covers were leaking. The dealer said they would do the gaskets before I took the car - 4 months later still waiting for the car. They did a terrible job on the Valve cover gaskets and only replaces the actual valve cover gaskets, and not one other gasket along the way. They ended up causing a misfire in tthe work that they did and have since taken things apart the 4 times replacing misc hoses (PCV, intake) along the way and have not been able solve the misfire and gave up. I stopped by to read it with VIDA and got codes for Primary/Secondary coil pack circuit failures for cylinders 2,3,5,8. I looked briefly at the grounds and things seems ok - but it was clear they did a very sloppy job on the repair. Things will bent, pulled, missing bolts.
I am at the point where I may ahve to walk away for the car because they ruined it and left it with a can of worms.
Does anyone know what could be a cause for the coil circuit failure for those cylinders - they are all over the engine so I didnt think they could have just messed up those grounds.
All of the coils and plugs were changed before they started the valve cover work so I ruled out bad coils - and its unlikely 4 failed just like that. Is there any relation between the coils on those 4 cylinders.
Thanks
I am at the point where I may ahve to walk away for the car because they ruined it and left it with a can of worms.
Does anyone know what could be a cause for the coil circuit failure for those cylinders - they are all over the engine so I didnt think they could have just messed up those grounds.
All of the coils and plugs were changed before they started the valve cover work so I ruled out bad coils - and its unlikely 4 failed just like that. Is there any relation between the coils on those 4 cylinders.
Thanks