Throttle body
The throttle body controls the amount of air that flows to the engine proportionally to the pressure applied to the accelerator
pedal. Inside the throttle body, the valve controls the air-to-fuel
ratio for the engine. If you press the accelerator pedal, the valve starts to
turn. This makes it possible for air to flow into the manifold. The throttle
body is a car part that can be found between the air filter and the intake manifold .
The throttle body has to process different gases and
fumes from the engine. These gases and fumes will eventually contaminate the
body. A contaminated throttle body results in decreasing engine performance.
The throttle can also start failing due to contamination. If this is the case,
you can try to clean it with a throttle body cleaner or replace it.
Bad
throttle body symptoms The throttle body can get contaminated by the gases
and fumes emitted by the engine. A contaminated throttle body can be recognized
by a number of symptoms. In some cases, a bad throttle body is detected during
an MOT inspection only. It’s good to know though how to recognise a bad
throttle body. Look for among others, the following symptoms:
Drop
in mileage; Throttle
stops; Rough idling;
Grime
buildup; Poor engine performance; Check
engine light; Increase
in fuel consumption; Hard
shifting; Poor
or high idle; Airflow
disruptions; Drop in acceleration. Do you recognize any of these symptoms? Then it is
advised to inspect the throttle body. If it turns out that it is contaminated,
you can clean it with a throttle body cleaner or have it cleaned by your local
garage. In many cases however cleaning is no longer possible and it needs to be
replaced.
Replacing a throttle body A heavily contaminated or bad throttle body needs to
be replaced. You can have a throttle body replaced at your local garage, but to
save costs its something you can do yourself as well. You can order a new
throttle body quickly and easily using your number plate or by selecting the
make, model and engine type of your car on Winparts UK.
Buying
a new throttle body You can buy a throttle quick and easily at Winparts. Enter
your number plate or select your car make, model and type of engine, and the
right car parts are shown. You can then choose from a number of top brands such
as VDO , Bosch , Valeo and Pierburg . You can also find valves and regulators in
our assortment at Winparts UK. The right place to look for EGR valves , electric bypass valves and for example pressure converters .
