Clogged Fuel Rail?

Hey guys,


I am having trouble with my car... When I get on highways and drive for about 30 minutes, my car starts having hard time accelerating. It starts happening after the engine gets warm.


I had done everything, Changed the Wires, Plugs... EGR system... Cleaned the MAF sensor...


So left without any options, I took it to Midas Auto Shop and they said that they will have to run a diagnostics on it. After running it, they came to me and said that my FUEL RAIL is clogged. To make it clear it is the part where the injectors are connected to the Rail...





So do you think that this is the culprit, or do those guys are just trying to get away with it?

Clogged Fuel Rail?
You don't specify make/model/year or engine, so this is a bit of a crap shoot...





It makes no sense that a clogged fuel rail would show up, and KEEP showing up, ONLY after 30 minutes of highway driving. It'd either BE there or NOT be there as a problem. It's not like this problem would be heat sensitive or anything.





Just ahead of your fuel rail, you'll likely find a pressure regulator. IF (big IF) they've at least gotten you close with their original diagnosis, the regulator is right there ahead of the rail. That said, they don't tend to fail in this manner very often, either... neither do fuel pumps, for that matter, although it's possible. A single injector failure is also a possibility -- failing as it warms up. You don't specify cylinder count, but with a smaller number, any one failing is going to be more obvious.





ANY chance you're already in a hot climate part of the country, and dealing with a vapor lock of some sort? It would explain the time at highway speed issue in a cleaner fashion!





Just how confident ARE these guys that you actually have a fuel delivery problem, and how did they make that call? Based upon your description, it wouldn't show up without a road test unless something popped up on an OBD2 scan that put them onto it.
Reply:Hi,





I am surprised as there should be a fuel finter in the system before the rail that should clog first. Look for this filter before you do a railendectomy... JMO





good luck


Phil
Reply:More than likely the fuel filter has become almost completely plugged.Change the fuel filter.If you still have problems I would suspect a fuel delivery problem in the tank.(eg.A hole on the pressure side of the fuel line inside of the tank.If the rail was plugged it probably would not run.Ask those guys if they just wanted your money.It is sad and thier are many that just make up repairs not knowing what to do.
Reply:If the fuel rail is clogged, ask what it is clogged with! If it is rust they could be correct, but you would have other problems than that! Like a rusty gas tank or a clogged fuel filter, and you should have gone through multiple fuel pumps. Ask them how they arrived at their diagnosis. You should get another opinion.



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