White smoke and rough
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Joined: Dec 2003
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White smoke and rough
The old IDI started running rough the other day. She idles rough , sounds like it's got a dead cyl., but when I loosen fuel lines with the engine running I don't get a miss on any one cyl. I get a lot of white smoke that smells like fuel. I'm guessing I may have an injector stuck open. We have another engine in the shop that has had the injectors replaced. They probably have 6000-8000 miles on them. I think we're going to try change injectors and see what happens.
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I was hoping maybe a return line but we just had the right side head off a few weeks ago to remove a broken glow plug so I know the o-rongs and hoses should be good. It doesn't clear out either. It looks like the injector change out is on.
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OK, we changed the injectors out last night and still the same thing. I'm wondering about the IP now. I'm guessing it could do the same thing as bad injectors? She idles rough but loosening lines doesn't give me a dead miss. Going down the road, it rolls white smoke and when you lug it down low, it shutters/shakes.
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From: TN
How many miles are on the IP? Typically you replace IP and injectors at the same time, around 150k miles, but it may be the oddball time that you may have received a defective injector (cause I received two bad onces out of eight) Before spending the $550 on a remanned pump, do a pop test on the injectors if you are able to. They should open up at about 1800ish PSI with no leaks or drips.
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More Turbo
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How many miles are on the IP? Typically you replace IP and injectors at the same time, around 150k miles, but it may be the oddball time that you may have received a defective injector (cause I received two bad onces out of eight) Before spending the $550 on a remanned pump, do a pop test on the injectors if you are able to. They should open up at about 1800ish PSI with no leaks or drips.
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From: TN
It's a DPS Turbo Cal. Pump and DPS Stage 1's so that's probably where the problem lies. just about the time I had received mine the hate and faulty parts threads across all the boards started about them and IIRC they went under. Will be uber PO'd if I spent like $800-$900 on garbage.
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The DPS products werent really the problem. It was the guy selling them. The pump builder was independant of DPS and imo did good work, he was also the guy who built the first DB2 / 4 hybrids.
Have you made sure you didnt just get a bad tank of fuel? Throw some ATF in the filter and some diesel klean in the tank and let us know what happens.
Have you made sure you didnt just get a bad tank of fuel? Throw some ATF in the filter and some diesel klean in the tank and let us know what happens.
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Well, we haven't had a lot of time to work on the old truck but I found the problem this morning. I told my son the next day after it started running bad that we would probably pull the valve covers and check the valve train. I started overthinking the diesel stuff I guess. I should have went with my first hunch. I found a rocker arm loose today.
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