- #464 of 506
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Smoke
by smokin
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May 07, 2009 (4:47 am)
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I have a 2006 Duramax milage is OK 16-18 mpg. BUT when I reslly get on the pedal the exaust pours out a HUGE cloud of black smoke. I am I running too rich or is this normal??
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- #465 of 506
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Re: low fuel rail pressure [jodie1614]
by roland3
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May 07, 2009 (7:34 am)
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Replying to: jodie1614 (Apr 26, 2009 4:43 pm)
... Are you heating, starting and shutting down on regular Diesel fuel like m.britt says, and also changing filters more frequently. I don't think it would be that much problem for one POV.
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- #466 of 506
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Re: Smoke [smokin]
by madbrit427
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May 07, 2009 (9:26 am)
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Replying to: smokin (May 07, 2009 4:47 am)
Take it back to your dealer, you did buy an extended warranty didn't you? Anyway, it should be covered under the 5 year 100K engine warranty.
I had bad smoke and a really stinky exhaust. After two trips to the dealer, they had replaced 3 injectors, the fuel pump and goodness knows what else and it seems good now (touch wood!!!). But I still don't know what the problem was as they appeared to change parts until the problem was cured. They did say the faulty fuel pump pressure had damaged the injectors.
Great truck, just love it, but it goes away when the warranty runs out...... LOL.
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- #467 of 506
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Re: Smoke [smokin]
by jbull454GMC
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May 11, 2009 (5:15 pm)
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Replying to: smokin (May 07, 2009 4:47 am)
On an 06 16 to 18 isn't bad with this new low sulfer fuel. although 19 to 20 is more normal. A puff of smoke like that I would have checked out. Duramaxs aren't known for snoke unless they have had a tuner put to them. Could lead to an injector or injection pump problem though so have it looked at.
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- #468 of 506
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Re: Diesel truck advice for girls! [chani]
by svetter
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May 16, 2009 (11:44 am)
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Replying to: chani (Jan 16, 2005 8:34 am)
I have driven chev all my life (45 years) but I think am going ford next time
The duramx and the allison have been good but I've had lots of problems with other things. (Transfer case, door locks, u-joints, transmission lines,rear end vibration,)
So I may try a ford. Besides they have not taken any tarp money.
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- #469 of 506
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Re: Diesel truck advice for girls! [svetter]
by jbull454GMC
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May 16, 2009 (7:18 pm)
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Replying to: svetter (May 16, 2009 11:44 am)
Working for a Chevy dealer I know about those problems. I will admit, they need to be addressed and dealt with. Along with window regulators, and a few other things. On the Ford subject though, you may want to ask people who have them about the fuel economy. I've talked to a few and they say its horrible. 11 unloaded and 8 with a trailer. Thats more like the old 454 gas engine. They say they pull and haul great just drink fuel. I'm not real thrilled with 15 to 18 on my 08 duramax, truthfully. Especially after talking to people with older ones getting 20 on average. How do you use more fuel and be safer on the enviroment? We can thank the government for that idea...Honestly I don't think there are too many differences anymore. I almost bought a Cummins before I got my Duramax and remember, I work for a GM dealer.
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- #470 of 506
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Re: Diesel truck advice for girls! [jbull454GMC]
by jerrydock
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May 17, 2009 (5:29 am)
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Replying to: jbull454GMC (May 16, 2009 7:18 pm)
I just got a nasty surprise. I love my 2005 Duramax 2500 4x4, but I just had to replace the left fron wheel bearing...NOT. There is no such thing. You have to buy the entire assembly. Nearly $250.00. My 89 was repaired for $16.89 in parts. I don't like some "progress".
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- #471 of 506
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Re: Diesel truck advice for girls! [jerrydock]
by jbull454GMC
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May 17, 2009 (11:38 am)
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Replying to: jerrydock (May 17, 2009 5:29 am)
I see this from time to time, and I'll say that I think its a "designed to fail" part. You can't get a regular bearing for any GM vehicle anymore. It all the hub bearing assembly. I think it had a grease zert it would be better off but thats never going to happen. Who am I to say though? I just sell the parts I don't design them.
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- #472 of 506
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Re: Smoke [smokin]
by wear04
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May 20, 2009 (1:55 pm)
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Replying to: smokin (May 07, 2009 4:47 am)
Just recently had this happen only have 41k on truck 2006 and they want to replace egr valve??? What have you been told???
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- #473 of 506
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Re: Smoke [wear04]
by jbull454GMC
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May 20, 2009 (5:40 pm)
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Replying to: wear04 (May 20, 2009 1:55 pm)
I have seen two EGR valves replaced. The first was only at about a thousand miles the other was at over one hundred thousand miles. Personally I think emissions on a diesel engine are about as useful as an elevator in an outhouse. But the federal gov is pushing it. On the probem though, I wonder if it doesn't have to do with injector problems. Too much soot clogging them from using too much fuel.
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