I have a 2005 Chevrolet Trailblazer LT. Recently the gas gauge was stuck at empty and the cause was determine to be in the tank. In the process of fixing this problem, which required the tank to be taken off, the fuel pump was also replaced . Since that time the Trailblazer has intermittently had trouble starting. It seems to happen most when I have driven to work (20 min drive ) in the morning then try to start up around lunchtime. I usually have no problem first thing in the mornings or within a few hours of driving.
The problem starting consists of the engine turning over 5 or so times before starting with a struggle or sometimes after turning over multiple times not starting at all. After one failed attempt I can turn the key a second time and will start right up no problem. Through none of this am I holding the key and grinding on the engine to start.
I went back to the auto shop that replaced the fuel pump and they said it was not holding its prime , which seems to be the case and the pump was replaced with a non aftermarket part. Unfortunately the same issue is still occurring . They do not seem to be able to figure out what is going on.
Any help would be appreciated