Common Fuel System Problems

  1. Denso Fuel Pump Failure

    The impellers inside of Denso branded fuel pumps may have been excessively exposed to a drying agent during manufacturing. This leads to them cracking, absorbing fuel, and deforming so badly that they stop sending fuel to the engine. Subaru…

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  2. What Are We Missing?

    We know there's more problems than this. Let us know which one you'd like to see us cover next.

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Where Fuel System Complaints Happen

Sometimes it helps just to tally up the complaints and see where the biggest stacks are. Use this information to learn about troublespots or to run for the hills.

Recent Fuel Systems News

There's a lot of news out there, but not all of it matters. We try to boil down it to the most important bits about things that actually help you with your car problem. Interested in getting these stories in an email? Signup for free email alerts over at CarComplaints.com.

  1. A couple months back a proposed class-action lawsuit asked for additional protections for all Canadian citizens with defective Denso fuel pumps in their vehicles.

    Well, almost all citizens.…

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  2. Subaru did the right thing by recalling over 200,000 vehicles

    that are at risk of stalling out because of a defect in their Denso fuel pumps. But did they skip over another 188,000 vehicles with the same risks?…

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  3. Last month Denso announced that nearly 2 million of its low-pressure fuel pumps will need to be recalled before they cause the engine to stall.

    The recall will replace the pumps in certain vehicles but a new Canadian lawsuit says that doesn't go far enough.…

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  4. A group of 2019 models equipped with Denso low-pressure fuel pumps have been recalled after multiple reports of the engine stalling out.

    The impellers inside the pumps may have been excessively exposed to a drying agent during manufacturing.…

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  5. Subaru is recalling 3,200 brand new vehicles for a problem that could eventually lead to a fire.

    Subaru says proper tightening procedures weren't followed for the nuts that secure the propeller shaft to the rear differential. The automaker blames the problem on an improper use of the torque wrench.

    Looks like somebody in the Subaru factory is going back to "Torque Wrench 101." So how do some loose nuts lead to a fire? It's simple, really.…

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