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First off my car is a 2008 scion tc. Someone had siphoned my gas and put water in my tank, i pumped out the tank and put sea foam and new gas in tank. When driving my check engine light will flash and the car looses power eventually leading to the car dying. Then I try and start the car up and it won't start for a couple hours. Someone please help I have no clue what to do with my car and I have a big trip I have to make. Any suggestions or help is appreciated!

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I f the tanks been cleaned, and you suspect water in the fuel, get a fuel pressure gauge hose, attach to the service port on the fuel rail. catch the contents carefully in a gas can. get help to turn the key to run. when the cans full, pour the contents into a jar and let separate. if there is now 2 liquids in the jar, the system needs further clean out and flush. a code scanner from the parts store can be rented borrowed or purchased depending on your circumstances. run the code check to see what parts you set codes for..clear the memory. clean or replace the plugs. put the car through a complete drive cycle. run the code check again. now, look up the pinpoint tests and test for any failed part. service repeating hard faults first. note any recurring driveability problem and incorporate into the diagnosis.

dont waste money on chemical fixes for these symptoms, physically remove the fuel and clean the system. if you have already bought and poured in, the sampling in the glass container should separate it out for you. then you will see what you have

Posted on May 09, 2014

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  • Cars & Trucks Master
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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.

Posted on May 07, 2014

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  • Matt Plummer
    Matt Plummer May 07, 2014

    How many bottles Dow I need to put it the tank? Should I do this with an empty tank or what?

  • dan lincoln May 07, 2014

    no no no. ethyl,methyl nightmares throughout the fuel system. chemically not good for any fuel injected system

  • dan lincoln May 07, 2014

    if mechanic in a can is what you seek, there is a BG product that can successfully suspend water, chemically affect it and pass it thru. we used to sell it at the dealer. i think you can get it at part stores if you call ahead for the one that sells BG chemicals. i, personally think you were on the right track getting the tank cleaned out. then you just needed to purge it by capturing the fuel in a can at the service port. y'kno where the tech attaches his pressure gauge?. catch a fair amount in a suitable container and let it sit in a jar. if it separates, the gas is on top.

  • dan lincoln May 07, 2014

    having the ck. eng. light means it has codes. read them with a code reader. look up the definitions and do the tests. clean the plugs, regap. or replace them. change the fuel filter. disconnect the fuse for the computer. restart. re-evaluate. based on what the codes were for you might be able to drive it to the part store and return the code scanner. scan it once more for codes and service them now that its been cleared and driven

  • dan lincoln May 07, 2014

    a complete drive cycle includes warm up, road test, operating every accessory and system, highway driving and hard accelleration. now it will set codes again and you can believe they are not just complaints but hard faults.

  • Brad Brown May 07, 2014

    The main ingredient in BG fuel system dryer is ISOPROPYL AC

  • Brad Brown May 07, 2014

    Add a Comment. They have the same properties as ethanol. The reason I dont recommend ISOPROPYL is because it can be prediluted with water. Both of them attack metal. Both of them attack plastics and rubber.

  • dan lincoln May 09, 2014

    the ingredients in heet will cause detrimental effects to the injectors. i personally have seen live chemical testing of the available fuels in my town on the effects of chemical additives. i personally, recommend pumping fuel out and cleaning the tank. changing the filter, blowing the fuel lines out with air. replenishing the gas. sampling it at the fuel rail. when the fuel can sit in a jar and not separate, no contamination exists. the contents of automotive chemicals is not reported to the public on the label unless required by law. the law also requires that they not sell caustic substances that can harm your system. yet the stuff is still for sale. the fine print? it does not say on the label of heet that it is safe for use in vehicles with electronic fuel injection. but right next to it, is a bottle of cleaner that says it is. its not capable of cleaning injectors because the plastics in the system would melt when exposed to the specified caustic solution. thats why only trained persons should perform repairs that involve high pressure fuel, fuel tanks, and injector cleaning. the only additive available that tests safe for the fuel injected cars is sold by a bg distr. or the dealer. if you object to the contents, of course you may run tests of your own... but if you want to use that gas drier, call ahead and find it, only the dealer has it in my area. your mileage may vary, p.s. have a nice day

  • dan lincoln May 09, 2014

    the gas drier at the car dealers in my area is the bg stuff. not the methyl ethyl content, because it causes breakdown and deposits in the lines and injectors

  • dan lincoln May 09, 2014

    the dealer must constantly put what the customer wants on the shelf for him to buy. then they must tell him what to buy, so they school their people in the results of the chemical testing and effects of additives. they dont sell heet

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