5 Signs Your Fuel Filter Needs Replacing-NEWS

URL: https://www.slfiltration.com/news/5-signs-your-fuel-filter-needs-replacing-66843139.html

Unseen and often forgotten, fuel filters are a small but critical part of a vehicle's fuel supply system. Here's what can happen if you neglect yours.

It’s easy to forget about your car’s fuel filters, but you may regret it if you do. Here’s what you need to know to protect your fuel supply system and maintain a smooth ride.

Most vehicles have two fuel filters. There’s one in the fuel tank, often called a strainer (which costs $25 to $100) and one in the main fuel line (usually less than $20). The filter material is made from plastic or specially coated pleated paper. Fuel filters are designed to trap dirt, rust, scale and other impurities from entering the fuel pump, fuel injectors and engine, without effecting fuel pressure.

Gasoline fuel filters are rated in microns. Most modern vehicles with fuel-injection systems use filters rated between 10 and 30 microns. (A micron is .001mm. By comparison, a human hair is approximately 70 microns or .08mm.) This is critical because modern engines have extremely tight fuel system and engine component tolerances. Due to their abrasive nature, combined with the high fuel pressure of fuel-injected engines, any foreign particles that gets past a faulty or dirty fuel filter can cause blockages that interrupt the fuel supply and damage your engine.

5 Signs of a Bad Fuel Filter：

①Poor Engine Performance

②Hard Starting

③Stalling

④Random Misfire or Rough Idle

⑤Fuel System Part Failures

Poor Engine Performance

Under heavy loads, a clogged fuel filter may cause the engine to randomly hesitate, surge or sputter. This tends to be more prominent when accelerating, especially up a steep incline. Although there may be no symptoms under normal driving conditions, a clogged fuel filter will starve the engine of the extra fuel needed when quickly accelerating. Depending on the extent of the fuel restriction caused by a dirty filter, an engine may also shake or stutter at different speeds.