possably blown up?
Senior User
Joined: Jun 2011
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One more thought and hopefully someone with more knowledge than I will chime in here but, what about the IPR? I thought I read that a bad oring on the IPR allows oil into the fuel (read: black fuel filter) and will cause a hard starting condition.
-Joseph
-Joseph
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
He said black filter.
I bet he has clogged injectors and algae.
He needs to run something to clean out the injectors and tank algae.
He's getting low fuel pressure cause everything is gummed up.
I bet he has clogged injectors and algae.
He needs to run something to clean out the injectors and tank algae.
He's getting low fuel pressure cause everything is gummed up.
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
The IPR has no way to do anything with Fuel.
It simply controls pulsewidth of the HPOP system.
A bad IPR can cause hard starting, but I'm pretty sure this isn't his issue.
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
Double check first in your fuel bowl at what the filter looks like now you've changed it.
If the fuel is black and the filter is not slimey, you have oil in your fuel.
If it is black and the filter is slimey, or your old filter was slimey, go with the following steps.
Go get you a few fuel filters and some algaecide to get that scum out of the fuel system.
Grab some seafoam to help clean out the injectors.
When you get the algae out, mix some of the seafoam up with diesel in the fuel bowl after its clean to help clean out the injectors, and then put the rest in a gallon or 2 in the tank.
Want to run it really rich on the seafoam to clean out all the crap.
Hotshot
Joined: Jun 2007
Posts: 10,008
Likes: 7
From: Austin, TX
If the IPR is sticking it can cause the hard starting and extremely low power.
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Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
Are you reading what I post?
well, I didn't say injector o-rings.
I just explained the steps if the filter was slimey.
I figured somebody would fill in the other parts for me.
one step at a time. I'd rather go for simple crap first thats easier to determine.
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
he said something about blue smoke out the tailpipe, which is an o-ring symptom, and he's getting poor idle and low power.
His higher power setting is probably calling for high enough rail pressure that its firing the injectors a bit better, but still blowing lots into the cylinders too.
Go with the stuff that doesn't require tearing the motor apart is the direction I was steering things.
Posting Guru
Joined: Aug 2004
Posts: 2,417
Likes: 4
From: Braham MN
Here's what ya do...find a spray bottle and fill it with water. engine has to be stone cold, start engine, let it idle for a minute maybe. Start running around with your spray bottle and spray water on the manifold right where they meet the heads, only need to spray them once. The ones that evaporate the water off quickly are firing, the ones with water on them are not. Its alot easier than running around burning fingers trying to figure out which ones are not firing. once you know what cylinders arent firing pull valve covers off and start looking for oil squirting out the deflector spout.
I suspect you broke a nozzle spring and its got a cylinder or 2 loading up on fuel, hence the flame out the exhaust. You may have said it earlier but is it knocking really bad on one side of the engine?
I suspect you broke a nozzle spring and its got a cylinder or 2 loading up on fuel, hence the flame out the exhaust. You may have said it earlier but is it knocking really bad on one side of the engine?