Hi Guys.
I can share my opinion on both sides of the story and try to help with the actual issue.
Firstly we are all repsonsible for allowing persons with the right experience to work on any thing that belongs to us, dont take your tv to a general electrician take it to a tv specialist, they do exist, ok it may be a bit more effort getting it there but it pays in the end.
The next most important thing is communication, its both parties responsibility to say all they need to say before work starts.
For example the owner should make it clear what the budget it if there is one.
The contractor with any sense will have a cap on diagnostic time per part of jobs list. Ie we have a cap at 3 hours diagnostic time for any one said issue.
If the communication is not that good on either side there are usually dissappointments.
The man needs paying for his time, if you give him a open cheque book you know what to expect.
We all share responsibility. Some people will offer work for free where they feel dissapointed themselves in a failure to fix, we certainly have but again it all depends on the contractual disccussion.
From a "Fairness" point of view which is the angle most commonly used in the forum scenes 10 hours is a joke and the said people shouldnt be working on the car.
With the problem at hand.
We can work thorugh that here.
What year is the car??
Did the problems suddenly appear or have the started since changing something??
Has the engine been compression tested??
James