[Hypsi87]

Originally Posted by fastrogue

Hoping to find some help. My Buick GS runs about two hours on the Interstate and suddenly won't run well enough to pull the car at two miles an hour. If I turn it off for about 30 minutes it will run fine for another two hours. I have spent over $3000 at the dealer and it runs no better. They tell me there are no error codes on each trip to the dealer. On the first visit, they pulled the fuel tank and cleaned it and replaced the fuel filter. On subsequent service visits they replaced the fuel pressure regulator, two injectors, crank sensor and all three coils. Now they want to replace the fuel pump, but they keep writing "Customer directed repairs, no warranty" on the bills! Of course the car is out of factory warranty. The vehicle has always been dealer maintained for oil changes, air filter and air conditioner filter change, transmission tune-up and warranty checks. None of these bills are included in the $3000 amount associated with this problem.
This vehicle had this problem at the end of this summer and now it is mid-winter. It runs fine on local driving, even several hour trips through the country at 55 mph or less is fine. There is no check engine light or any warning it is about to go limp. It has 46,000 miles on it and I really like the car, but the vehicle is just plain unsafe on long trips.

I would go to another dealer and get another tech to look at it