'Smokin and Missin' and no power all of a sudden ???

[royzell]

Hey All,

a few days ago I drove my truck and it ran fine. I parked in the usual spot. Today it fired right up, it idled fine, but that was the end of the fun. As soon as the RPM went past 1500-2000 it started sputtering and missing and blowing great clouds of bluish greyish black smoke. When I moved it, it had no power and continued the above behavior. Warming it up made no difference. It didn't stall but felt like it might when I tried moving it.

Any suggestions ??

 

[ull7]

try bypassing the fuel water seperator and see how she runs.take both hoses of and connect both together with a hose connector and clamps.first change the fuel filter

 

[69oiler]

fuel filter is my guess

 

[Agnem]

The source of the problem is the IP. As for the cause, that will remain to be seen. Check the filter and fuel presure as suggested.

 

[royzell]

thanks, I just got back from a work trip. I'll probably tinker this weekend.
Any thoughts on it being an injector and checking by cracking open a fuel line at a time ?

 

[LCAM-01XA]

Sure, you can do this - the one that don't change the idle quality, or changes it way too much compared to others, that's your suspect!

 

[ull7]

air

air leak! from water seperator!

 

[royzell]

I think it's fixed. I changed the fuel filter assy, no improvement. I cracked open the fuel lines while running, no discernible difference.
While I had the hood open, and revved it by hand, I saw something.
My turbo kit has a rubber elbow that makes the bend from the intercooler pipe, to the engine intake. This elbow was collapsing under acceleration cutting off airflow. I rummaged around and found an air intake from a 1990 Dynasty I scrapped recently. The hose was about the right diameter, there was a 90 bend, and I cut it to length. It works. At first I was getting a lot of blue smoke, then it settled down to black on acceleration. I may have to adjust my pump.
Any changes I'll keep you posted. Thanks to all !

 

[RKOCH]

Air flow cutting off that will do it too. Black is gooooood fuel is your freind as long as you have a pyro hooked up.