12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

97 cummins loosing power

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Old 04-07-2011, 09:56 AM
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Default 97 cummins loosing power

my engine is pretty much stock, i have 193,000 miles on it and i am loosing power.
when I pull up to a stop light with the AC on the truck will die. When i am accelerating to get on the freeway it has a hard time getting going, usually around 50mph (1.5 rpm) if there is a hill i am loosing speed and i am not even pulling a trailer. the only time i am seeing black smoke is when i start it in the morning. I can hear the turbo spinning.

any idea's anyone has would be a great help.



thanks!
 
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Old 04-07-2011, 02:03 PM
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im gust putting this out there win it start in the morning is it hard to start
 
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Old 04-07-2011, 02:12 PM
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Yes it is hard to start in the morning,
 
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Old 04-07-2011, 04:18 PM
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No smoke fuel delivery problem?
 
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Old 04-09-2011, 07:34 PM
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i adjusted the idle screw today and it starts much better, I also put a new hi-flow air-filter in it today. i haven't had a chance to take test it but i don't think that is going to help. payday is tuesday and i am going to change the fuel filter and pre filter that's in the fuel heater. if that doesn't work I will change the filter in the tank.
 
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Old 04-11-2011, 04:16 PM
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changed the prefilter, the fuel filter and oil today but not much change. still feels sluggish and no acceleration no smoke, this truck came out of CA. and has a tube running from the exhaust to the intake manifold if i remove this would it help lower my exhaust temps? and I read something about the wast gate going valve going bad. I have no pressure gauges to check the wast gate I read that it should be at 20p.s.i is there another way to check ant see if it is working?
 
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