Q: struggling to start after fuel pump assembly replacement

asked by on December 19, 2016

So, about a month ago my car just stopped starting. It wouldn't even turn over. I had a diagnostic done by a Your Mechanic technician and he was great. It was recommended I replace the fuel pump assembly, so I did. First it would start really quickly without any struggle but now it kinda struggles a bit but still starts. I wanted to know if the slower start could be because of the colder weather, high mileage, the fuel pump or something else potentially? Also, are there things i should do to prolong the life of my vehicle? Thanks for your response!

My car has 196000 miles.
My car has an automatic transmission.

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Hi there. It is possible that there is an issue with the fuel pump, but that is not likely. If the engine is hard to start then that can be caused by a sensor problem. I usually start by checking to see if the fuel pressure is bleeding off when the vehicle sits. This would tell me if there is an issue with the fuel system. I doubt that this is the issue. It sounds more like an issue with the crank sensor. I would use a computer scan tool to watch this sensor reading to see if it is failing. If you need to have this checked out, consider having YourMechanic come out again, as a certified mechanic will come to you to [diagnose why the car is hard to start] https://www.yourmechanic.com/services/car-is-hard-to-start-inspection

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