Question about 2003 Ford E250
I was wondering if you scanned this vehicle or guessed on which parts to replace? You can get a free scan at Autozone or Oreillys. Even if you have an basic scanner, there are some scanners that Autozone and repair shops use which list ALL the potential problems starting with the most likely.
There should be a MAF sensor on the Air intake bonnet. It can be cleaned with Electrical spray, but not a solvent liike Choke or Brake cleaner. If that does not help try misting the gaskets on the Intake manifold and Airhorn with a water spray bottle. Do this with the engine running or even use Choke cleaner. Either way, the RPM will change if you find a leak. Since your "Check Light" is on anyway, it would not hurt to plug the Vacuum line to the EGR valve and see if the hesitation stops when you accelerate.
Then check the EGR for a bad diaphram if the motor runs better without it. The scan at Autozone should show the mechanical defects, but it will not show bad gas. You might as well change the fuel filter and do a gas sample at the same time. A lot of people have put a ton of money into their vehicles only to find they didn't need to.
It won't cost you much to try what I suggested, and I think you have already replaced the most popular parts. Would be curious to know what you found out about your vehicle.
Posted on Nov 06, 2010
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Posted on Jan 02, 2017
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