low on power - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 6 (permalink) Old 04-25-2009, 10:13 PM Thread Starter
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low on power

i drove the dodge today and it wasnt too impressive. it still runs very strong but not anything like it should. i was accelerating up a hill in level 5 and my foot acualy hit the floor! it was pulling strong but to be honest there's been very few times my foot has been floored. before if i was to push it that hard in level 5 it would have been almost scary.

the check engine light is not on so i dont think its throwing any codes. or does the light not always come on?

fuel pressure is fine, between 15 and 20 psi all the time. can the ip be weak? i thought the pump either worked or it didnt, is that wrong?

it's been running like this for a while, and i just blamed it on the cold weather. but it was almost 90 today so i cant blame it on that anymore!

any idea's or tips would be appreciated!

99 cummins, 5-speed, edge comp, speedhut guages, fass 150 system, s&b cold air intake, ces two piece manifold, 5 inch straight exhaust with a 6 inch tip, 5 inch superlift, 4:10 gears, dynatrack lock in lock outs, 35x14.50 thornbirds on 16.5x12 mickey tompson classic 2's, alpine head unit, 1600 watt amp, 2 12 inch subs
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post #2 of 6 (permalink) Old 04-25-2009, 10:16 PM Thread Starter
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i forgot to mention, there's not as much black smoke either

99 cummins, 5-speed, edge comp, speedhut guages, fass 150 system, s&b cold air intake, ces two piece manifold, 5 inch straight exhaust with a 6 inch tip, 5 inch superlift, 4:10 gears, dynatrack lock in lock outs, 35x14.50 thornbirds on 16.5x12 mickey tompson classic 2's, alpine head unit, 1600 watt amp, 2 12 inch subs
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post #3 of 6 (permalink) Old 04-25-2009, 10:23 PM
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not all codes set off the check engine light, so yes, you could still have codes. Is it possible you have an air leak in the fuel system? maybe a loose filter on the LP.

2004 Silverado 2500 LLY Duramax
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post #4 of 6 (permalink) Old 04-26-2009, 12:42 AM
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Very few error codes trip the CHECK ENGINE light.. But is very possible to have codes without the CEL light... So check for error codes...
http://mopar.mopar1973man.com/tips/c...rror-codes.htm

While your at it and the problem is power you might as well check for proper fuel pressure too...
http://mopar.mopar1973man.com/tips/c...-pump-daig.htm
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post #5 of 6 (permalink) Old 05-01-2009, 02:01 AM Thread Starter
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thanks guys! i'll let y'all know what i find if anything.

99 cummins, 5-speed, edge comp, speedhut guages, fass 150 system, s&b cold air intake, ces two piece manifold, 5 inch straight exhaust with a 6 inch tip, 5 inch superlift, 4:10 gears, dynatrack lock in lock outs, 35x14.50 thornbirds on 16.5x12 mickey tompson classic 2's, alpine head unit, 1600 watt amp, 2 12 inch subs
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post #6 of 6 (permalink) Old 05-05-2009, 12:39 AM
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