Thu Nov 04, 2004 2:32 pm
I have a 99 Ford Power Stroke with 270K miles on it. In the mornings latley it starts but runs very rough for a time at idle. If I give it throttle it will die as if running out of fuel. If I let it idle for a period of time it will run fine. I'm thinking that maybe I have an air leak that leaks back during down times. But have looked at every fitting to no avail.
Can anyone help
Thu Nov 04, 2004 2:42 pm
I would guess injectors
Thu Nov 04, 2004 2:57 pm
Replace the fuel and air filters and call me in the morning
Thu Nov 04, 2004 3:19 pm
Aren't there vacume hoses all over that thing? They get old and porous too.
Thu Nov 04, 2004 10:19 pm
Donny changing the filters wont hurt. But if it was a fuel filter oe delivery problem I would think it would show up under a load. It could very well be fuel draining back from a bad fitting or bad fuel pump. How long since the last oil change? The reason being that these injectors are oil actuated.
Poor oil pressure or delivery could cause a problem with injectionn pressures and atomization.
Also check what seems to be a waste gate on the turbo it should work freely as it shuts during coldengine conditions to warmup the engine faster.
Thu Nov 04, 2004 10:37 pm
Fri Nov 05, 2004 4:42 pm
Cub Hut should get an attabiy too he first said injectors and Rondel told how to fix the injectors. Aren't we all glad for the cub forum. Enough knowledge to fix the world.
Fri Nov 05, 2004 6:27 pm
Thank You Cub Hut
Sorry for the omission
Fri Nov 05, 2004 10:19 pm
Sat Nov 06, 2004 8:17 am
That's OK . didn't realize oil change would affect the injectors either.Was going on dirty or clogged tip or bad seal.
We all learn from this board. DAVE
Sun Nov 07, 2004 11:08 am
Glad things worked out for you. I used to change the oil on my old service trucks at 3k miles but I was putting some SEVERE!! use onn them too. And you dont want to think about replaceing those injectors. last time I had to replace one it was over $250@ $2k for a set
Needless to say i only replace what was needed.
You may be surprised to know that these HEUI injectors are built by Caterpillar. And some the same basic injectors through Cat go for over $400@
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