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What are the symptoms of not enough exhaust back pressure?

I’m worried there’s something wrong with my exhaust system, but I don’t know enough about cars to be sure. What are the symptoms of not enough exhaust back pressure?

avatar
Nick Kunze · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
The symptoms of not enough exhaust back pressure include: *Weak engine power *Poor fuel economy *Issues with transmission shifting *Stalling
In extreme cases, your engine may not start at all.
There’s a sweet spot of back pressure, as too much back pressure can negatively impact your horsepower. However, there is some debate in the car community about how vital back pressure really is, with some saying it has minimal effect on a car’s performance.
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