QuestionI was driving the vehicle for approximately 2.5 hours. The gas tank was 1/2 full when I filled up in NJ since gas was 20 cents cheaper in NJ. The tank had about 3/4 tank when problem occurred.
Had the vehicle towed to Harrisburg Hyundai, after they looked at the vehicle they could not find anything wrong as when they took it out for a test drive, the stalling did not happen. They bought it back to the shop and ran diagnostic testing on it and nothing showed up as current or prior problems. It seems like it stalls out when traveling for a significant amount of time in wet conditions. But does not stall out when conditions are dry. Is it possible that the wet conditions are causing moisture to gather in the engine and stalling out?
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Yesterday while driving on the highway, going about 60 mph, my 2005 Hyundai Santa Fe, V6 stalled while traveling. All lights on dash flashed on. Pulled off highway, put vehicle in off position and turned on ignition. Vehicle started up and I was able to get back onto highway and it once again stalled after going a few miles. After this happening a few times, it got to the point where I could not even go 1/2 mile before stalling and eventually it started stalling just idling in a turnpike service plaza. This also happened to me 6 months ago and the mechanic suggested putting dry gas into the vehicle as water was getting into the cylinders. This worked for a few months, but now the problem is back. Any suggestions?
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If you had been driving the vehicle for a significant period of time or the fuel was 1/4 tank or less, or both, I'd suspect you may have a fuel pump issue.
This should be an issue for the dealer to repair under warranty. Take the car in to them (or have it towed if it won't drive well or long enough). Give the dealer as many details as you can regarding what happened, how long you had been driving, the fuel level, and anything else you can think of that may help them decipher what is happening with your vehicle. The idea of water in the gas is dubious.
AnswerIt's possible there could be an issue with a wiring connector that could be aggravated by wet weather, but more likely the wet weather is just a coincidence and the real issue is that the fuel pump is worn, causing it to be able to deliver less fuel pressure as the pump gets warmer the longer it operates.
Everything you describe is consistent with a fuel pump problem. Perhaps allowing (or encouraging) the dealer to take on an extended road test (overnight if necessary) will enable them to duplicate the condition. From your description, I'd be very surprised if it's anything other than the fuel pump, but getting the dealer to replace the pump for you without duplicating the condition is another story.
