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Starts then stalls

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  #1  
Old 07-11-2015, 10:53 AM
caymandrew's Avatar
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Default Starts then stalls

This is starting to drive me crazy. As you may know, my Disco was stuck inn a river for 5 days.. It's obviously never run right since. It's starts then stalls. Here's what I've done so far.

Replaced airfirlter
Replaced all fluids (oil, trans, xfercase, diffs)
Replaced MAF (twice)
Replace main intake hose.
Replaced all spark plugs.
Wires are the 8mm and only a year old.
I get good spark at every plug so the coils are good.
Replaced the CPS.

Thinking maybe it had some water in the engine I drained the oil and filled the engine with Diesel fuel, let it run for 60 seconds, drained, flushed, and fill again with new oil.

I replaced just the Fuel Pump inside the tank.

The only part left I have to replace is the ECU unit. Tell me that's going to fix it!!!
 
  #2  
Old 07-11-2015, 11:31 AM
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I would like to kill the Engineer that put the CPS where he did!

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My only hope:

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Old fuel pump

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New one:

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  #3  
Old 07-11-2015, 11:40 AM
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  #4  
Old 07-11-2015, 05:26 PM
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I would take a look at the idle air control valve. Even if it 'buzzes' with the key on, it could still be stuck. Sometimes just cleaning it out will fix it.
 
  #5  
Old 07-12-2015, 01:34 PM
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Ok, it's buzzing but I still took it off and tried cleaning it out with starter fluid no change. Replaced the ECU. No change. I'm totally stumped. If I spray starter fluid in the intake it'll stay at idle. New fuel pump, could my injectors be bad??
 
  #6  
Old 07-12-2015, 04:30 PM
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That definitely sounds like a fueling issue. Check all your fuel lines and injector harness. Before replacing them, try bench testing them. Seems your replacing a lot of parts, some of them could have been tested without replacing (like the fuel pump) and saved you some money.
 
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Old 07-12-2015, 04:33 PM
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Did you scan for codes?
 
  #8  
Old 07-12-2015, 04:37 PM
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I agree with Alex_M. If you indeed confirmed good spark, it's gotta be fuel related.

Do you have an ultragauge? If so, take a look at your O2 sensor output readings. I wonder if one or more sensors were possibly damaged. If you can keep it running long enough.
 

Last edited by coors; 07-12-2015 at 04:39 PM.
  #9  
Old 07-12-2015, 04:44 PM
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Originally Posted by caymandrew
Ok, it's buzzing but I still took it off and tried cleaning it out with starter fluid no change. Replaced the ECU. No change. I'm totally stumped. If I spray starter fluid in the intake it'll stay at idle. New fuel pump, could my injectors be bad??
Starter fluid may not be enough to clean it out. I would try carb. cleaner and let it soak for a little while, then rinse it out really good. Also, I would take off the hoses that hook up to the intake and make sure there isn't a bunch of carbon buildup in there.

Other than that, is it just at idle that it dies? If you give it some throttle, will it run?
Also, do you have a SES light on? If so, what are the codes you're getting?
 
  #10  
Old 07-12-2015, 04:52 PM
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Sorry, I missed your video before. I see the SES light is on. Do you know what codes you have?
It looks and sounds like you've got a massive vacuum leak. Can you hear any leaking vacuum under the hood?
 


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