For a while now, my jeep has had a rough time starting up...usually have to crank on it for a few seconds. It was previously at a mechanic who couldn't pinpoint the problem, but did note that the fuel pressure was a little low. From researching, it seemed that maybe the fuel pressure regulator was at fault. So a few months ago, I went ahead and installed a new fuel pump, thinking it would solve any and all problems related to this. Initially after the fuel pump install, it started right up, however after a day or so, it went back to the same conditions, where it takes a little longer to fire up. However, once it's warm, it tends to fire up a little quicker. I talked to a mechanic, and he thought that maybe the CPS was to blame. Does this sound accurate? I would hate to throw a hundred bucks at a part that won't solve the issue. From searching, it seems that the CPS would only assist with engines running rough, having dling issues or stalling. The engine has about 73,000 miles.
Thanks in advance!