Signs of Fuel Injector Problems Fuel injector problems will lower a vehicle's
fuel economy OBD2 Scanner. Fuel
injectors are the part of a vehicle's fuel system that actually sprays or
injects the fuel into the engine's cylinders. Over time, fuel injectors can
become either partially or completely clogged. Less expensive fuels may not have
as many detergents added to them, which means sediment can more easily build up
on the injectors and cause problems. Several signs point toward dirty fuel
injectors. Have a question? Get an answer from a mechanic now!Fuel Economy It is
a good idea to periodically check your vehicle's fuel economy. A decrease in
mileage is a sign of problems. If the fuel injectors are becoming clogged and
not operating correctly, the engine will not run as efficiently, and your
mileage will suffer. Check Engine Fuel injector problems can cause the"check
engine"light to come on in vehicles that were made from 1996 on. The diminished
amount of fuel that is making its way to the vehicle's cylinders can cause"lean
misfire,"where some of the fuel does not burn completely before exiting the
engine via the exhaust system. This condition can trigger a random misfire code,
activating the warning The operation of the vehicle can also be affected by fuel
injector problems. Rough idle, loss of power, stumbling and stalling are all
advanced signs of dirty injectors. In general, dirty fuel injectors will cause
the engine to run rough, as it is starved for do I Check for a Bad Fuel
Injector? A bad fuel injector can be checked via an Ohm meter. The fuel injector
refers to an electrically operated gate that opens and injects fuel into the
engine. A bad fuel injector can cause numerous engine problems and should be
checked for proper function. Have a question? Get an answer from a mechanic
now!A bad fuel injector can fail in open position and send a flood of fuel into
the exhaust system. This can lead to failure of the catalytic converter and poor
engine performance. A fuel injector with a leak at the o-ring seal or in the
body can also produce an air vacuum leak inside the manifold, resulting in a
poor combustion mixture ratio in the Click Check Fuel injectors can be checked
for proper function by turning on the engine and listening for a distinct
clicking sound, which should be produced by each injector. If no clicking sound
is apparent from one injector, it is likely bad and requires Meter If all fuel
injectors"click Car Tools store,"then
the operator may perform an Ohm meter test. Ohm meters refer to devices used to
measure the resistance across an injector's terminals. Once the vehicle is
turned off, the Ohm meter can be attached to the fuel injector wiring. If
resistance does not meet the fuel injector's specifications as stated in the
manual for that vehicle, the injector should be replaced.
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