COUPLE MONTHS AGO I STOP TO FUEL UP MY GAS TANK AND DROVE AWAY LEAVING MY GAS TANK COVER AND THAT CAUSE MY SERVICE LIGHT TO COME ON. I WENT TO AUTOZONE AND THEY SAY ITS MY KNOCK SENSOR BUT NOW A CAN FEEL A LITTLE **** WHEN IM DRIVING. WHAT COULD THIS **** BE AND DO I HAVE TO RUSH TO FIX THAT LIGHT AS IT A BIT EXPENSIVE TO DO SO?
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Re: SERVICE ENGINE LIGHT
Buy a can of sea foam, it comes in a white metal can pour it in your fuel tank and the service engine light will go out within 100 miles, i have the same truck worked great for mine same problem you had. best of luck.
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I had a similar problem that turned out to be dirt contaminated gasoline. The "fix" was always to replace the fuel filter but it would not stay fixed. In particular, each time I started having problems it was after I let the gas tank level get low.
What I did that you can consider was:
But a new fuel filter.
Get a 5 gallon gas can.filled with fresh gas.
Get some cheap gasoline proof container (or several containers) for waste gasoline.
Make a "vacuum cleaner" out of an electric in-line low pressure gas pump, some low pressure gas hose, and a couple of pieces of copper tube, 20 ft of two conductor wire, and two alligator clips. It connects hydraulically copper tube to suck out the gas tank, fuel hose, pump, fuel hose, copper tube to go into the gas can. The wire and clips are to hook the fuel pump to your car battery.
Drive the car until the fuel level is low.
Remove the fuel pump module.
Vacuum the gas tank into the waste gas container through the opening left by the fuel module. Try to get the dirt off the bottom.
When you have vacuumed all you can get, stop awhile and let the dirt settle in the waste container.
Vacuum the gasoline from the waste container back into the gas tank. Vacuum high in the container so the dirt stays in the waste. Try to wash any dirt in the gas tank to below the fuel module opening.
Stop a while and let the dirt settle.
Repeat vacuuming and washing as many times as needed to get the tank clean and empty.
Inspect the tank interior with a mirror and flashlight looking for rust, dirt, etc.
Have you considered that either your fuel pickup strainer in the gas tank may be clogged with debris? I've had this problem in the past with larger Fords, usually associated with the use of ethanol fuels, which cause moisture to condense in the gas tank and cause corrosion which eventually clogs the pickup strainer..
a bad fuel level in the tank should not cause the tank not to fill up,but it can cause bad readings to the gauge. so the tank may have had more fuel in it than you thought and that is why it wouldn' t take the gas as it should. then when you filled up the next time the fuel level was correct so it filled up like you knew it was suppose to.I suggest you monitor the fuel with your trip odometer and fiil up every 200 miles to make sure the gauge is reading like it should or you may run out of gas.
Sounds like a vacuum leak at the canister or vacuum lines, lift the hood, start the car and listen for a hissing sound after it warms up, on the fender/frontend area there should be a black canister with vacuum hoses connected, check all the hoses end to end for leaks, there is a vacuum that is created in the tank that is controled (vented gas cap), if there is no vacuum in the canister to the fuel tank, this will cause the check engine light to come on (faulty gas cap). vacuum leaks cause the RPM to increase, I am surprized that's the only code you have. most cars have a diagram under the hood of the emissions.
It seems to me youre being taken for a ride, if the problem started when you drove over the water puddle then that means that some water go into a key component somehow, perhaps the fuel tank itself or an electrical component. I would stay away from that shop and try to replace the fuel in your vehicle, if its possible for you. also try to take it to autozone if you can, they wil plug the scanner to your vehicle and tell you why the engine light is on for FREE! Good Luck.
Top candidates for this problem are: Clogged Fuel filter Faulty Fuel pump Clogged fuel injectors Dirty / worn spark plugs
Of these, only the clogged fuel injectors are likely to respond to a gas tank additive, and even then you need to get the right kind of additive. If your fuel filter has not been changed in a while (couple years), start with this. It is fairly easy to change. The fuel filter is under the car near the the driver's side rear door. If this problem started "suddenly," then the fuel pump might be the culprit. Fuel injector / spark plug issues are not likely to stop the engine right away, but would tend to cause it to miss cylinders, idle rough, or start rough.