. What engine does yours have 2.8 - 3.0 - 3.2 - or 3.6 L ? Does it have direct fuel injection ? if it does it has two fuel pumps , a low pressure pump in the fuel tank and a very high pressure one that operates off one of the cam shafts .
The fuel tank stores the fuel supply. The fuel pump module, located in the fuel tank, supplies fuel through the fuel feed pipe to the high pressure fuel pump. The high pressure fuel pump supplies fuel to a variable-pressure fuel rail. Fuel enters the combustion chamber through precision multi-hole fuel injectors. The in-tank fuel pump is controlled with a fuel pump control module (FPCM). The engine control module (ECM) enables the FPCM and sends the desired fuel line pressure to the FPCM via GMLAN. The FPCM sends a pulse width modulated (PWM) voltage to the in-tank fuel pump allowing the fuel line pressure to be varied as commanded by the ECM. The high pressure fuel pump, fuel rail pressure, fuel injection timing, and injection duration are controlled by the ECM.
If you don't know about this you really should not mess with it !
Fuel Pump Flow Control Module (FPCM)
The fuel pump flow control module (FPCM) is a serviceable GMLAN module. The FPCM receives the desired fuel pressure message from the engine control module (ECM) and controls the fuel pump located within the fuel tank to achieve the desired fuel pressure. The FPCM sends a PWM signal to the fuel pump, and pump speed is changed by varying the duty cycle of this signal.
You may not have a bad fuel pump !
Drop the fuel tank and remove the circle lock. Youll see it when you take the cover off.
SOURCE: How do you replace the headlight bulbs in a 2009
under the hood at the back of the head lights you can twist and unplug the bulb or they will do it at the part store for you most the time
SOURCE: How do I change the headlights for the 2009
first are they HID
if just HALOGEN LIGHTS BULB
jack the vehicle up and remove the tire on the side you are replacing the light
remove the inner fender
you will see a round plug turn and remove then you will see the bulb
replace the bulb and reassemble
now if they are HID LIGHTS OR YOU ARE REPLACING THE WHOLE HEADLIGHT ASSEMBLEY
then the whole FRONT BUMPER FACIA HAS TO COME OFF
hope this helps let me know
SOURCE: 2008 gmc acadia low beam light bulb changing
how do you change the low beam light bulb on the 2008 gmc acadia
SOURCE: How do I reset my
It's in your manual, but I recall it to be...
Turn the ignition key to "run" and then depress the gas pedal three times down, and let off...then wait for yor light to flash, then key off.
SOURCE: does a 2008 GMC Acadia have a fuel filter?
{: ) It has no in-line fuel filter. The fuel filter, or the fuel strainer is integrated to the fuel pump, which are inside the fuel tank.
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