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E-350

Try to rotate the tires to see if the noise changes on your 2004 Ford E-350 Econoline. I have had many noises caused by uneven tire wear (https://www.yourmechanic.com/services/uneven-tire-wear-inspection), alignment issues (https://www.yourmechanic.com/article/how-to-know-if-you-need-a-wheel-alignment-by-robert-tomashek), or lack of tire rotations (https://www.yourmechanic.com/article/how-often-do-i-need-to-rotate-my-tires). You already replaced...

Hello. I recommend checking the operation of the thermostat (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-thermostat) to ensure it opens and closes at the proper temperature. You also could have some air in your cooling system causing the heating system to blow cold at inappropriate times....

Hello. Firstly, I suggest checking for vacuum leaks, the turbo piping for leaks, and the exhaust tubing that goes to the EGR valve for any cracks. Any of those conditions could cause high pitched noises. I've noticed that a few...

Thanks for writing in about your 2012 Ford E-350 Econoline. Anytime you get a lot of codes for the same thing, it is common practice to document the codes and then clear them. After clearing the codes, road test to...

Hello. The conditions you described could result of a fuel injector o-ring leakage, a fuel injector control module intermittent failure, or a glow plug failure (https://www.yourmechanic.com/article/symptoms-of-bad-or-failing-glow-plugs). I would also recommend checking the electrodes on the spark plugs. Get some help...