2003 Hyundai Santa Fe Intermittent Engine Stalling

2003 HYUNDAI SANTA FE
160,000 MILES
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ARIZONABOB
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My 2003 Santa Fe 2.7 L 2wd. will on occasion stall while driving in city traffic and at freeway speeds. After the stall occurs, it will restart sometimes immediately and sometimes after a minute or two. Also, when this occurs, sometimes the fuel gauge will go to approx. 1/8th tank no matter how much fuel is in the tank. The factory fuel pump was replaced approx. 1-1/2 years ago because of this same problem as a "best guess" fix. The pump was replaced with a complete pump assembly that was purchased at a Hyundai dealer (OEM PART). the new pump has approx. 11000 miles on it now. I don't have many diagnostic tools. Could this new pump already have gone bad or is there some other problem I should be addressing?
Jun 15, 2013 at 11:33 PM
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KHLOW2008
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The gauge showing erratically means this problem is most likely electrical in nature. A wire or connection somewhere could be loose and this would intermittently cause the stalling. such intermittent problems are not easy to detect and when it stalls and is difficult to start, that is the time you would most likely be able to find the source of the problem.
Jun 16, 2013 at 1:08 AM
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ARIZONABOB
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Yes, thanks for your input. I have inspected the harness that connects to the top of the fuel pump and have found everything as it should be i.e. no rubbing, nothing pinched, no broken connectors and etc. I failed to mention in my original post that that this has happened at least 7 times and the check engine light never is triggered nor is there any codes. I am leaning towards replacing the pump assembly again. Just wish they were not so expensive!!
Jun 16, 2013 at 9:08 AM
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KHLOW2008
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Fuel pumps are quite durable components and I am not really sure it would give way that fast if it is an OEM component. Was the relays checked?
Jun 16, 2013 at 1:21 PM
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ARIZONABOB
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No, I have never checked the relay, but I will check it.
Jun 19, 2013 at 10:21 PM
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KHLOW2008
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Any update on this?
Jun 30, 2013 at 3:24 AM
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