2006 2500 MegaCab 5.9L Cummins loses power

chad · 2006-12-29T09:24:16+00:00

A week or 2 ago my 2006 Dodge Ram 2500 MegaCab with the Cummins 5.9Land 6 speed manual started to cough and lose power/RPMs and lots ofwhite smoke (or smoke looking substance like water vapor) came out.(It had an unknown percentage of bio-diesel in it -- small repeatedfillups of various percents of bio with intermittentent straight dinodiesel -- truck is 4 months old but only had 600-700 miles on it. Thiscoughing and loss of power lasted a few minutes and then it seemed towork fine for a while. Then it happened again. I added 10 gallons ofdino diesel and was able to drive home 4 miles without incident. Nextday went out and had similar episodes. When it drives fine there isno smoke. When it starts to cough and lag and power loss occurs lotsof white smoke comes out. A ton of it.I drained the water filter a few times thinking that maybe there was ahigh water content in the fuel. I also added some Power Serviceadditive that is supposed to displace water.I was able to drive 50-70 miles without incident when it started againtonight. It would idle fine but when I pushed the accelerator it waslike there was a regulator on it. It would rev up a little and thenjust totally lose power. I added another 7 or so gallons of dinotonight and some more Power Service additive. We are now up close to800 miles on the odometer. I went and got some Howes Lubricator DieselTreat, which claims to eliminate water, and added some of that. Afterthat I was able to drive 5 or 6 miles when it started to happen againbut the symptoms are now a lot less severe. I don't see as much smokeor any when it "power losses" and it does not lose as much power,though it is still very noticable. It is like a governor is on theengine. It will idle and I can slowly increase the throttle and thenbetween 1800 and 2500 (not always at the same point) the power losshappens and the rpms will drop. I was able to keep it going at up to2000 rpm without loss sometimes but then get above that and it...

Dec 29, 2006 21 Replies

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Scott Hendryx 19 years ago

Prolly a pink TuTu!

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Craig C. 19 years ago

Poor Scott ... your ignorance was exposed, so now you resort to gay jokes. Pathetic redneck.

Don't you have people in the RV group to irritate?

Craig C.

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