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Leaking fuel pump...help!

Donovan_787

Registered Member
Joined
Mar 1, 2020
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Genesis Model Type
1G Genesis Sedan (2009-2014)
I found out that both of the high pressure fuel pumps on my 2012 Genesis sedan RSpec 5.0 is leaking fuel. The car has 60,000 miles. The root cause was most likely due to the fact that I used regular unleaded gas for the past 15,000 miles instead of super unleaded. Rookie mistake. I inherited this car from my dad. So I assume my emissions system is clogged up. Is it possible to use a powerful fuel cleaner to clean the emissions system in order to save money instead of buying a new fuel pump or should I just replace the fuel pumps?
 
Regular unleaded vs premium, not sure that would cause fuel pump leaks? High pressure pumps I think are cam driven and not sure if they have a conventional diaphragm like normal pressure pumps or not? I would guess the rubber diaphragm has a puncture or crack maybe just not convinced the fuel grade did it in?
 
Regular unleaded vs premium, not sure that would cause fuel pump leaks? High pressure pumps I think are cam driven and not sure if they have a conventional diaphragm like normal pressure pumps or not? I would guess the rubber diaphragm has a puncture or crack maybe just not convinced the fuel grade did it in?

I did more research and found out it's leaking from the side. So is it possible to rebuild it with new seals and gaskets or just get a used one?
 
I did more research and found out it's leaking from the side. So is it possible to rebuild it with new seals and gaskets or just get a used one?
Really don’t know. I’ve only replaced the old types that fed carburetor engines and they were R&R. The direct injection high pressure pumps I’ve never looked at closely to know if rebuildable or not? Would figure a new after market pump would probably be cheaper than a rebuild?
 
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