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There could be several symptoms such as lack of power, engine idles but won't rev up, check engine code(s) about lean conditions or random misfire and with a totally clogged fuel filter the engine won't run at all.

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11y ago

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Will a clogged fuel filter cause service engine light to come on and off engine runs erratically on a Buick Electra 3.8 liter?

Possibly. Replace the fuel filter to see if that solves your problems.


What does the fuel filter effect?

Pretty much the entire fuel system. It gets clogged, the engine gets starved of fuel, and it either doesn't run or else it runs very poorly.


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It could be a clogged fuel filter, a bad fuel pump, or a loose wire. If the engine starts up after a few minutes and runs for a short while, the fuel pump and wiring are good and the filter is most likely clogged, If the engine will not restart at all, start by looking for a loose or disconnected wire before taking on the task of working on the fuel pump.


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A possible problem is a clogged fuel filter. Sometimes, the dirt will suck up against the outlet in the filter, but when the engine is shut off the dirt settles to the bottom of the filter.


What is wrong with a chainsaw if it runs only on full choke?

More than likely, the fuel filter is clogged or dirty.


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Can be the fuel pump is about to fail. Can also be the fuel filter is partially clogged.


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