Evidently you got water in the sensor connecter. The fuel filter is located on the right side as viewed from the front of the engine about even with cyl 4. unplug the sensor in the bottom of the filter and blow it and the connecter out with compressed air and plug back in, this should take care of your problem. Since you know know where this filter is it needs to be drained and/or replaced from time to time when this light comes on also.
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Dirty fuel filter, clogged injector(s) water in fuel, dirty air filter. try fuel additive to clean injectors and remove water. replace air filter, fuel filter. possible could be the injector pump, would have to do a pressure check on fuel rail.
When was the last tune up? There is a few things that come to mind. possible low fuel pressure, dirty fuel injector, throttle body could need cleaning, dirty fuel filter, water in the fuel, spark plugs need to be replaced or re gapped. I need more information to try to be more helpful.
The fuel filter is under the vehicle on the driver's side of
the car, in the area below the seating area. In front of the fuel tank,
the fuel filter is positioned on the chassis of the fuel line.
The fuel filter looks like either a polypropylene film
canister or a small spool of thread with a thin tube attached at each
end. The vehicle component is relatively small in size and is commonly
found in a black or silver color.
When gasoline transfers from a gas station's fuel tank to
the vehicle's gas tank, dirt and water is transferred with the gasoline
as well. Dirt can be transferred from dirty tank sprouts, dirty fuel
caps or the dispensing funnels, and water can travel through wet
dispensing funnels. When this happens, if unprotected, the contaminants
clogs the fuel lines, which destroys the engine, with water causing
deterioration and rust. To prevent these and other contaminants from
reaching the fuel lines, the fuel filter works as a net to screen out
dirt and rust particles, allowing only pure gasoline to fuel the
A fuel filter does not clean itself. Over time, the
contaminants will build up within the filter which can cause a barrier
from any fuel from reaching the engine. When this happens, remove and
clean the fuel filter with a dry wash cloth or issue a replacement as
check for fuel flow-water pump-,fuses,crank or cam sensors,throttle dirty,use a scanner to locate any failure and especially do the adaptations. clogged fuel filter,clogged air filter,spark plugs or catalytic converter.
This could be from anything from a dirty fuel filter which is robbing engine of proper fuel supply, to dirty injectors, and possibly dirty air filter. Way to test this is to remove air filter, check for cleanliness. If it is clean, then move to the injector cleaning. You can by the additive at any auto supply store, on a full tank of fuel. Run the engine for a while and if this improves then it is likely the solution. However, a fuel filter would be highly recommended and are generally located under the hood near the rear of the engine compartment. Not too tough to change, but if it has never been, then it is likely it would improve fuel pressure to the injectors, increasing the idling slightly and smoother running performance.
Here is the steps for the removal and replacement...getting you the picture and location next.
Disconnect the negative battery cables.
Drain the fuel from the fuel filter as follows:
Install a hose on the water drain on the water-in-fuel sensor.
Place the other end of the hose into an approved container.
Drain as much fuel as possible from the fuel filter housing.
Tighten the water drain on the water-in-fuel sensor.
Remove or disconnect the following:
Water-in-fuel sensor harness connector
Fuel filter from the fuel filter/heater element housing
Water-in-fuel sensor from the fuel filter
Exploded view of the fuel filter (2)—6.6L engine
Install or connect the following:
Water-in-fuel sensor in the fuel filter
Check the fuel filter/heater element housing and the filter for a dislocated filter seal or foreign debris. Contamination on the filter/heater housing may cause leakage at the fuel filter. Coat the seal with clean engine oil.
Fuel filter on the fuel filter/heater element housing
Water-in-fuel harness connector
Negative battery cables
Prime the fuel system:
Pump the primer located on top of the fuel filter 30 times or until stiff.
Try to start and run the engine. If the engine does not start, repeat the previous step.
Allow the engine to run for 5 minutes at idle.
Check for fuel leaks and clear all Diagnostic Trouble Codes (DTCs).
Fuel filter is located on the inside frame rail under the drivers door and the fuel filter is located in the gas tank. Start with the simple and change the fuel filter first, but it is common for the fuel pump to burn out when the gas tank has run out of fuel, but since your engine started back up. Good chance that your fuel pump may still be good and your fuel filter may have pick up dirty from the bottom of the gas tank which is causing your engine not to get any fuel.
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Dirty fuel filter or faulty fuel pressure check valve which is located on your fuel pump sending unit. Try this test, turn the ignition on for 10 seconds (engine not running) then turn it off for 5 seconds and turn it on again then try to start the engine after 10 seconds. This will re-pressurize the fuel lines to start the engine, the fuel injectors need 62-65PSI to have them start the engine. Anything less then that and you'll have starting problem.
If it start's right up, then your ether have a fuel pressure check valve gone bad or a fuel leak at your fuel pressure regulator which is also common, but if your engine is still running 100% then i'll lean towards check valve or dirty fuel filter.
Start with the simple and replace the fuel filter, a dirty fuel filter will cause fuel restriction that may just be enough to the fuel pressure below 62PSI upon cold starts and a dirty fuel filter will cause the fuel pump to fail early in it's life.
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ITS A SPIN ON FILTER, YOU NEED TO DISCONNECT THE WATER SENSOR ON THE BOTTOM OF THE FILTER, THEN USING A STRAP FILTER WRENCH LOOSEN THE FILTER AND SPIN IT OFF.
CHECK THE FILTER HOUSING TO BE SURE THE INNER FILTER SEAL ISN'T ON THE HOUSING AND CAME OFF WITH THE FILTER.
REMOVE THE WATER LEVEL SENSOR AND DISCARD THE SEAL.
INSTALL THE WATER LEVEL SENSOR ON THE NEW FILTER. USING A LITTLE GREASE ON THE INNER FILTER SEAL AND ON THE OUTER O-RING TO HOLD IT IN PLACE, SPIN ON THE NEW FILTER.
OPEN THE VENT ON THE UPPER SIDE OF THE FILTER HOUSING. PUSH DOWN ON THE HAND PUMP QUICKLY UNTIL THE FUEL IS COMING OUT OF THE VENT. CLOSE THE VENT AND PUMP THE FILTER PUMP UNTIL IT FEELS SOLID. AT THIS POINT START THE ENGINE. IF IT STALLS PUMP IT UP AGAIN AND RESTART THE ENGINE. IF YOU HAVE AN ASSISTANT THEY CAN PUMP THE FILTER PUMP WHILE THE ENGINE IS RUNNING AND QUIT WHEN YOU FEEL THE ENGINE IS NOT GOING TO STALL. ABOUT 10 TO 15 SECONDS USUALLY WORKS.
CHECK FOR LEAKS.
BEFORE STARTING THE ENGINE USE BRAKE WASH TO REMOVE THE FUEL SPILLED DURING THE FILTER REPLACEMENT. ALLOW IT TO DRY BEFORE STARTING THE ENGINE.