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15/10/2024 12:04 am
Topic starter
Hello scotty,
I have a 98 chevy tahoe with a 5.7 v8 engine and 176 thousand miles on it. It has a new fuel pump, new injectors, new filter and new fuel regulator but it's losing it's fuel pressure. Also, I'm getting codes p0171 and p0174. Can you please help figure out what else could ne making my fuel pressure to be lost. Thank you in advance
2 Answers
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15/10/2024 5:45 am
Well, if you're losing fuel pressure, we'll trip those codes. You would have to have a leak somewhere in the system. You change the obvious things such as the pump and fuel pressure regulator. Somewhere you have to be leaking fuel channel. You're going to smell the fuel if it's external so I would assume the fuel injectors are losing pressure. One of them or more are leaking
