My 91 deville runs great driving short distances but when i drive longer (45 minutes+) it will begin to sputter and if i try to accelerate nothing happens. I usually pull over and shut off the engine. If I'm stopped at a light when this is happening then it will not accelerate and seems to want to shut off. It will restart fine and will drive but almost immediately will start sputtering again. This seems to happen on hot days and longer trips. Any ideas?
My car has 90000 miles.
My car has an automatic transmission.
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing