Question about 2001 Chevrolet Cavalier

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Water poured in fuel tank and ran into the fuel system now car wont start. whats the easiest and fastiest way to flush fuel system

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You will have to replace the fuel filter sot remove it and run a line into a receptacle, then you can either cycle the key or connect a live to the fuel pump run until fuel is clear, disconnect the fuel lin at the rail and allow line to empty, reassemble system and add gas line antifreeze to the tand and cycle key a few time to purge system, it should start after a few cycles, the other alernative is to remove the fuel tank

Posted on Sep 16, 2010

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2004 grand am will not start i poured pesticide in gas tank and drove it now it cranks but no start sounds different than normal like its out of time


I would guess what you have is the equivalent to water in the gas.
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You need to put a lot of ethanol in it to get rid of the water. Also the water might have caused problems with the cat or the oxy sensors. Ethanol comes in products like HEET.

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Sounds like a typical case of letting the car run dry out of fuel, you may want to try spraying starter fluid into the intake/air filter after allowing the key to be left on in the run position for a few seconds, this allows the fuel pump to fill the fuel lines with fuel, then try spraying a shot of start fliud if still no start you may have a more serious problem....fuel contamination...the bottom of the fuel tank may have sediment in it and when you let it go dry it pulled up the bad stuff and now it needs to be flushed.
New fuel filter, injector service, fuel tank drained/flushed and fuel lines drained.

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Hard starting have changed fuel filter four times in two weeks


Either carry a lot of fuel filters or drain the fuel tank after it sits for a full two days, You have water in the fuelor a ton of algae. Confirm the water by pouring out the fuel filter. Any water will be obvious. The water in the tank will separate from the fuel if left standing. Then the water can be drained out the bottom of the tank.Water in the fuel can blow tips off injectors so take heed. and good luck.If you don't have a fuel water seperator, consider having a RACOR separater installed.

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1 Answer

Truck wont start.


yes,you will have to drop the tank to get to the fuel pump. i would check the fuel lines for water deposit as well.

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Ran out of fuel,wont go


Your fuel pump uses the gas (petrol) to keep it cool, and when it ran out, the pump likely overheated. It will probably need replaced, and there is a high probability that there is sludge in the fuel filter as well, because all the sediment sinks to the bottom of the fuel tank, and if it runs out of fuel then it will **** up the sediment with the last of the fuel. So... 1) Replace the fuel filter. If it still won't start, you need a fuel pump.

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1996 sport


Hellie11-

Well, I came up empty handed in my attempts to get detailed tech information on the 2.5 turbo-diesel, but I do have some ideas based on my general diesel experience and from your description of the problem.

Diesel fuel is VERY prone to pick up contaminants and especially water... most diesel configurations have some sophisticated filter systems to help deal with this... but good maintenance calls for the occassional adding of a can of diesel fuel conditioner to the tank, to help remove water and contaminants. In severe cases, the entire fuel system has to be torn down and cleaned, including draining and flushing of the fuel tank... and ALL filters should be changed.

Since they force flushed diesel through the system and got you running again, I am inclined to believe you have a dirty fuel problem. I would recommend they again flush your system, but also drain and flush clean the fuel tank AND change the filters... Have them capture some of the old fuel from the tank in a quart glass jar, and have someone examine it for evidence of contamination... water will separate and collect at the bottom (unfortunately, water does not separate from diesel as well as it does gasoline... that's why fuel contamination is such aproblem!)

And since the problem didn't come back until you refueled, I'd make sure the new diesel fuel you get be checked BEFORE you put it in the tank!!!

Finally, get in the habit of adding fuel conditioner periodically to help keep this problem from coming back too soon. Ask one of your mechanics about that, or collar a truck driver and get his advice on the subject!

Good luck Hellie11, don't be shy to ask for more help or post a comment, and if you need, you can e-mail me directly at wldbil49@yahoo.com.

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