Duramax Diesels Forum Truck of the Week
  #1  
Old 08-25-2010, 03:47 PM
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SparkZ03DMAX SparkZ03DMAX is offline
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Unhappy Has it finally happened?

Well, for the past two weeks my truck has been having a rough idle after a cold start. Once I put the truck into gear it tries to "lope" around, lopey idle. Well today I cranked it up at around 3pm and was getting ready to make my way to town. Well once I put the truck into gear and holding the brakes it started hazing white smoke. But once I start driving the truck; the truck runs fine and smokes the normal black color and runs fine for the rest of the day.

Now before Harley at Georgia Diesel checked my injectors last time I was down in Georgia (around April I think), he noticed that injector #8 was requiring more fuel than the rest of the injectors. Which I found to be true when a month later I recieved a code on my truck (P0308 cylinder H (8) misfire) which would later pop up out of the blue every now and then.

Once that code popped a long time ago, I began to add injector additive/lubricator like every chance that I think that it needed it. Well it looks like that only held off the injector problem to a degree.

I DO have enough money to replace one injector (if only one injector is bad) but I was told if you're going to change a injector u might as well change the 4 on that side or change all 8. I know theres no way I can afford all 8, and to change 4 I might have to ask for some help from someone with money (which I absolutely HATE doing).

So what should I do?
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2001 Chevrolet LB7 Duramax

S366, ARP Head Studs, 5" intake, Suncoast Trans, Airdog 165, Trac Bars, 5" Exhaust, Dsp5, 50 coats of wax.

Special Thanks to: Nick Murdock and ATP Tuning

Last edited by SparkZ03DMAX; 08-25-2010 at 03:48 PM.
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  #2  
Old 08-25-2010, 04:01 PM
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Chevy1925 Chevy1925 is online now
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personally, cause im in the same finacial boat as you (can afford one injector at a time) id just replace the one. Now i dont know if you plan on changin it yourself but when the time comes for me ill be changin it myself.
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  #3  
Old 08-25-2010, 04:02 PM
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There is a guy on here selling new in the box no core injectors for 1,385 shipped in the US I know a guy that bought a set and there new from GM.Thats about as cheap as your going to find them.
Here they are http://www.duramaxdiesels.com/forum/...ad.php?t=24393
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  #4  
Old 08-25-2010, 04:05 PM
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duramaxdiesel duramaxdiesel is offline
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Oh man this sucks. I'm in the same boat you are with my dually. I put all my money into my motor build for my other Dmax. Same year, color and configuration as yours. My dually won't even start after sitting all night. I hate to admit it but I need to give it a shot of ether then I'm good for the day. It's been like that for about a year now but the use of ether started recently. If I was in your shoes and you have no fuel in the oil I would just keep driving it until you have the cash to change all the injectors at one time. That's just my opinion.

Hope everything works out for ya with whatever road you take.


Nick
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  #5  
Old 08-25-2010, 04:33 PM
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Glad I have some ppl who understand. I took care of this truck the best I could, adding additives and lubricants because I knew about the LB7's almost only flaw. I've actually been thinking about selling my motorcycle to pay for the fix.

I might have to ask dad for help but I know he doesnt want to because he wants me to be on my own; I dont blame him but I sure could use the help BUT I hate asking for help because I feel like a complete failure or bum if I ask...
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2001 Chevrolet LB7 Duramax

S366, ARP Head Studs, 5" intake, Suncoast Trans, Airdog 165, Trac Bars, 5" Exhaust, Dsp5, 50 coats of wax.

Special Thanks to: Nick Murdock and ATP Tuning
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  #6  
Old 08-25-2010, 04:58 PM
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Let me know if you want help putting them in. I will do it for cheap and you can help and learn a thing or two. That way next time you will be able to do it yourself.
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  #7  
Old 08-25-2010, 05:00 PM
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SparkZ03DMAX SparkZ03DMAX is offline
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Quote:
Originally Posted by bullfrogjohnson View Post
Let me know if you want help putting them in. I will do it for cheap and you can help and learn a thing or two. That way next time you will be able to do it yourself.
Thanks alot dude. If theirs anyway u can send me ur phone number or something threw a PM that would great I might have to call u up on this.
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2001 Chevrolet LB7 Duramax

S366, ARP Head Studs, 5" intake, Suncoast Trans, Airdog 165, Trac Bars, 5" Exhaust, Dsp5, 50 coats of wax.

Special Thanks to: Nick Murdock and ATP Tuning
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  #8  
Old 08-25-2010, 05:35 PM
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Should I replace one? four? or all eight?
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2001 Chevrolet LB7 Duramax

S366, ARP Head Studs, 5" intake, Suncoast Trans, Airdog 165, Trac Bars, 5" Exhaust, Dsp5, 50 coats of wax.

Special Thanks to: Nick Murdock and ATP Tuning
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  #9  
Old 08-25-2010, 06:00 PM
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If you cant afford 4 or 8 just do one. When you have the cash do all 8.
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  #10  
Old 08-25-2010, 06:09 PM
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DIESELMAFIAPER.LB7 DIESELMAFIAPER.LB7 is offline
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Just replace one if that's all it is I did that now have to change another one out on the other side buy if I had done 4 I would be broke an couldn't fix the bad one I got now so just slip by with one
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  #11  
Old 08-25-2010, 06:11 PM
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SparkZ03DMAX SparkZ03DMAX is offline
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Quote:
Originally Posted by DIESELMAFIAPER.LB7 View Post
Just replace one if that's all it is I did that now have to change another one out on the other side buy if I had done 4 I would be broke an couldn't fix the bad one I got now so just slip by with one
ok that helps, i hope its just one that I have to fix, and dont have to worry about the others for a long time. I'll pray for that
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2001 Chevrolet LB7 Duramax

S366, ARP Head Studs, 5" intake, Suncoast Trans, Airdog 165, Trac Bars, 5" Exhaust, Dsp5, 50 coats of wax.

Special Thanks to: Nick Murdock and ATP Tuning
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  #12  
Old 08-25-2010, 06:24 PM
DuramaxTireSmoker DuramaxTireSmoker is offline
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Good luck Ethan
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  #13  
Old 08-25-2010, 06:48 PM
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Replacing 4 isnt going to make a difference in the truck opperating. I think the "replace 4" theory comes from the LB7s since they are a PITA and you have that side apart and a big chunk of the cost is the labor.


It would be ok to do just one, but a lot of work to do just 1 when three other are right there and could be done to make sure they last longer....

However if its cash strapping you, and your doing the work, do 1 for now. Whats another learning experience right?

If you are paying for someone to do the labor, I would do what ever it takes to have the other 3 on that side done....
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  #14  
Old 08-25-2010, 06:54 PM
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If you have less 200,000 on the truck GM will replace all 8 injectors for FREE I have had 5friends take advantage if this
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  #15  
Old 08-25-2010, 06:59 PM
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SparkZ03DMAX SparkZ03DMAX is offline
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Quote:
Originally Posted by wes06dmax View Post
If you have less 200,000 on the truck GM will replace all 8 injectors for FREE I have had 5friends take advantage if this
its a 2001, and it has 141,700 miles on it. I've called before about the warranty, they said I cant use it??
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2001 Chevrolet LB7 Duramax

S366, ARP Head Studs, 5" intake, Suncoast Trans, Airdog 165, Trac Bars, 5" Exhaust, Dsp5, 50 coats of wax.

Special Thanks to: Nick Murdock and ATP Tuning
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