Hello Everyone who has been helping me through the problem I've been fighting with for a month now. After going through many procedures and several parts changes because thats what the FSM said to do, ie change the fuel pump, change the fuel pressure regulator, change the dis module, change the fuel filter, check the ohms on the fuel injectors,check the pulse of the fuel injectors, check the fuel pres at the schreader valve....etc etc etc, this morning I finally disconnected the return line under the car by the fuel filter and jumped the fuel pump to get the fuel out of the fuel line and the following is the result... WTF... I tried to post a pic of what I got out of the fuel tank but cant figure how to get it on this page... However, in a mason jar, there are2 distinctive layers, the top has the yellow color of gas, but the bottom 2/3rds consists of a white milky looking substance...is this water in the fuel system.. what should I do now besides drain the fuel tank and change the fuel filter.. Could there be extensive damage to the fuel system... engine etc.. any help is greatly appreciated..



FREEZE

 

If anyone wants to see a pic of what I found in the Tank and what it looks like in the mason jar please email me at Humfreeze@aol.com and I will send it to you. If you know how to put a pic on the tread please advise me how to do that too.

Thanks

Freeze

 

Your avatar has a beautiful C-3, but I'm guessing you also have a C-4 which is where this problem is.

If you have not already done so, be sure the drain hole is open in the rubber "dish" near your fuel fill cap. They tend to get clogged with crud, the result being that when you wash the car or when it rains, water puddles up and can find its way into the tank. If you're lucky, maybe that's all the problem is. Fast, free fix!

PS - fill in your profile so we can tell what year car & where you are.

 

I had some douchebag kids put what I estimated to be about 5 gallons of water in my gas tank not too long ago.

Drain the tank, I disconnected the fuel line and jumped the pump. That will still leave quite a bit in the tank. Go to any hardware store and grab a hand pump (electric is obviously not a good idea) with a long hose. You can use it to do a damn good job of draining it from the top (remove the pump assy) without actually dropping the tank.

Make sure you also get all of the crap out of the system forward of the filter. Mine is carbed so a little different story.

I doubt you have enough in the system to actually damage it so you could be done there. Dump in a couple bottles of fuel system water remover to finish off what you might have missed (IT MIGHT SMOKE A LITTLE UNTIL THAT CRAP IS OUT OF THE TANK) and call it a day.

If you want to go the extra step, pull the plugs and let it sit for a while to evaporate whatever might be down in the cylinders.

I am not an expert. Follow my advice at your own risk... and good luck.

Long story short, get the water out, change the filter, and you should be good to go.

 

If the tank is empty and the lines and fuel filter are treated with a moisture preventer, how long should you wait to try and start the vehicle .... any ideas


Freeze

 

No need to wait if you have the water out of it. A little residual moisture that might be in it isn't going to hurt anything.

 

Check the drain hole at your gas filler. A clog there will let rainwater accumulate and flood into the tank.

 

Well I have cleaned the tank changed the fuel pump again with new filter in tank, changed the in line fuel filter and ran the fuel pump to get all the old gas out of the lines and after I was sure that it was clean and clear, I got in to start her up and she still wont start. Fuel pressure is still only reading about 40 psi and I am pretty sure it is suppose to be up around 50. I am baffled now. Still starts right up with a shot of starter fluid in the throttle body, but quickly dies. I am baffled now...

 

Your fuel pressure is fine. If it starts with starting fluid, there is a fuel delivery issue....in this case, it sounds like either your injectors aren't firing or they are clogged. Use a noid light and see if the injectors are being pulsed (grounded) by the ECM during cranking. Report back and we'll go from there.

 

I have used a noid light on every fuel injector and the are all pulsing as they are suppose to do. I know that this is a fuel problem and have now changed just about every part in the fuel system. I dont think it is an ECM or CCM problem due to the fact that it will start with the starter fluid so I am still baffled but I will not let this beat me. Can you clean the injector on the vehicle without tearing the whole top of the motor off.

Freeze

 

OK, you have injector pulse and 50 psi of fuel pressure.....50 is too high. Either the regulator has failed and / or return lines are clogged. 50 is enough to flood the engine.....are the plugs wet?

If you had water in the system, I suspect other contaminants as well. I say it's time to pull the entire fuel rail off and see what lurks within. I suspect something is plugging up both the injectors and the regulator.

 

Did you ever run some kind of water remover fluid? If not I'd recommend Denatured Alcohol maybe two quarts. This may help clean some areas like the fuel rails that may still have some water residue.

 

PM sent. Don't want to get in trouble for posting up a site that is not a sponsor here. This should work.

 

i ran b12 product through the system and it has done no good The fuel pressure is at 42 psi so i dont think the fuel lines are plugged.

 

doesn't each injector have its own very small very fine mesh filter ? These could easily be clogged....everything else in the fuel system checks out (?)

 

OK
So today I tore into the top of the motor and removed the throttle body the riser and the fuel rail. I removed each injector and cleaned each one with the B12 product but could figure out how to get it to go through the injector so I just filled each 1 up and let it sit for about an hour. I blew out the fuel rail and inspected the inside of the fuel regulator for any moisture. I then put it all back together and reconnected the fuel line and the return line to the fuel rail. Now I didnt know of this would even work but I hooked up the electrics to the fuel injectors and cranked the motor to see if any fuel would come through the bottom of the injectors. With 40 psi of pressure showing at the schraeder valve... not 1 drop of fuel came through any of the injectors. I then checked each connection with the noid light and they all appear to be pulsing but no fuel flow through the injectors. I checked each injector and they all have 16.6 to 16.7 Ohms indicated. I then put everything back together but it still will not start when I crank the motor... unless I spray starter fluid into the throtlle body and then it starts and runs for about 5 seconds and then dies as the starter fluid is used up. Could the water that I found in the tank have destroyed every single injector, or was this just a bad idea. I am ready to put it on the trailer and take it to the dealer but I know that this option will cost me a fortune. Does anyone know if the computer on the vehicle can be tested before I buy a new one??? I am out of ideas....

Freeze

 

I got lost in this thread long ago, sorry, but if your test was valid -if the injectors should have cycled, and I assume they should if the engine cranked- sounds like there is no pulse to fire the injectors.

did you mention what year? does it have a ccm to send the signals to ecm to fire injectors?

this may nor be a contaminated fuel issue now. at any rate, the laws of probablilty for random events says this is not likely that 8 injectors would be stopped up with whatever.

 

OK....the ECM is pulsing the injectors and you have fuel pressure. Do you have 12V to the injectors as verified with a volt meter? I remember you checking the fuses, but have you actually verified voltage to the injectors? The ECM grounding them does no good if they don't have power as well.

 

Still working this problem. New computer arrives tomorow. It was asked if the injectors had 12v at the injectors. I assumed that if the noid light illuminated/flashed as I cranked the motor then there has to be power to the injectorss. Am I wrong and how do I check this before I change out the computer tomorrow.

Thanks

Freeze

 

Well back to square 1. I just got a new computer for the vehicle and installed it and the same problem still exist. Car just will not start. More baffled than ever now.... Thinking that 2011 CAMARO is looking better all the time.

FREEZE