[DRCook]

I would like to see "this weeks poll" tackle this problem. Have everyone who has had the problem post the year and vin number of their truck. Then someone who is good with numbers see if there is a pattern. Such as what years are involved and if there may be a series of vins involved. Also we can determine just how many trucks are involved.

That actually is a good idea. I have an 04.5 that was an early build. I have NEVER had this issue. Granted that we only have 65,750 miles on the truck, it would be expected that IF we were to have this issue, it would have happened at least once.

I really don't follow the other engines family threads to get an idea if the other generations have this issue, but it could help pinpoint a common denominator.

 

[Dmax1989]

i have been running the starter in my 05 in my lbz for 2 months now, had to switch them, long story, any how, I haven't had the 05 starter grind! In the original truck, it would do it once a month, sometimes it would take 2 or 3 kicks to get it going. Thats the deal with mine anyway.

 

[OldBlue56]

i have been running the starter in my 05 in my lbz for 2 months now, had to switch them, long story, any how, I haven't had the 05 starter grind! In the original truck, it would do it once a month, sometimes it would take 2 or 3 kicks to get it going. Thats the deal with mine anyway.

That's interesting. That would indicate that it is not a problem with the starter anyway. Although to be sure a longer trial period would be desirable, but this is more information pointing towards flexplate or electrical issue.

Did yours do it since you have owned the truck or did it start out of the blue one day?

 

[Dmax1989]

I have owned the truck since november 2011, so not too long, but it was a random issue i had to fight with. Didnt seem to matter when or where, it would eventually rear its ugly head. I had tore it down to look for visual signs of damage or what have you, but didnt see anything. Then i put it in my 06 lbz and ive been running it for alittle over a month now, no grind. The one out of the 06 went into the 05 lly and it made the grinding noise the very first try to start it, then iirc, it did it once more, and now its on a streak of noise free. Im not sure that its the starters themselves or what the deal is?

 

[chevyinlinesix]

I have owned the truck since november 2011, so not too long, but it was a random issue i had to fight with. Didnt seem to matter when or where, it would eventually rear its ugly head. I had tore it down to look for visual signs of damage or what have you, but didnt see anything. Then i put it in my 06 lbz and ive been running it for alittle over a month now, no grind. The one out of the 06 went into the 05 lly and it made the grinding noise the very first try to start it, then iirc, it did it once more, and now its on a streak of noise free. Im not sure that its the starters themselves or what the deal is?

Back to my theory that there is a few different issues at hand here.

 

[Dmax1989]

I never did check the flex plate on the 05, it was going to be a huge pain to do with the fan shroud on. I checked the 06 when i had the engine pulled so it checked out good. Just odd that the starter out of the 06 doesnt grind in the 05. maybe they are wore differently enough that it isnt able to grind in the same places?

 

[OldBlue56]

Hmm, sure is frustrating how there never seems to be a pattern of any sort emerge with this. Which tends to supports chevyinlinesix's theory of multiple possible issues. You would think though eventually some sort of pattern would appear in each case, but I have been observing and taking note of mine for over a year now and still can't figure anything out. Oh well nothing everyone on this thread doesn't already know about.

 

[LLY Canuck]

has the mean green starter been grinding at all for you chevyinlinesix?

Mine's at the point where its doing it every single day at least 2-3 times a day, out of the 5-10 starts i do in a day. I'm beginning to dread starting it every morning because i don't want to be wrecking my flywheel anymore than it probably already is

I'm about to order a mean green, just wondering if it's been helping though?

And interesting on the fact that the LBZ doesn't grind w/ the LLY starter. I guess thats pointing towards some kind of a block flaw?
Agreed though, there has to be multiple issues giving us these problems

 

[DURAtotheMAX]

And interesting on the fact that the LBZ doesn't grind w/ the LLY starter. I guess thats pointing towards some kind of a block flaw?

What??????

 

[LLY Canuck]

What??????

haha just saying the starter grinding issue might have to due with both the starter having its own design issues and the block not being perfect where the starter mounts. Dmax1989 said that his LLY starter in his LBZ doesn't grind, so there could be differences in how the block is shaped in the starter mounting area.
I was just agreeing with the aforementioned "there are multiple issues that cause our problem"

 

[DURAtotheMAX]

haha just saying the starter grinding issue might have to due with both the starter having its own design issues and the block not being perfect where the starter mounts. Dmax1989 said that his LLY starter in his LBZ doesn't grind, so there could be differences in how the block is shaped in the starter mounting area.
I was just agreeing with the aforementioned "there are multiple issues that cause our problem"

Yeah the block isnt the problem. The starter doesnt even mount to the block..........

ben

 

[chevyinlinesix]

Still working fine with the Mean Green starter, no grinding. Sorry guys no time to get pics, measurements etc. either yet. I'm three weeks behind my work right now.

 

[strmh]

Here's my dumb question for the day.....

I'm looking into these Mean Green starters and I see they're showing a 12v and a 24v for the 6.6

How do I tell if I need 12 or 24 volt?

 

[chevyinlinesix]

I was not aware that there were any 24v 6.6l Duramax's...

BUT unless yours was some special military application truck in a former life, yours will be 12v.

 

[chevyinlinesix]

I was not aware that there were any 24v 6.6l Duramax's...

BUT unless yours was some special military application truck in a former life, yours will be 12v.

 

[DURAtotheMAX]

Even the military duramax's still used 12volts. Because obviously there are so much electronics on a duramax, and GM/Delphi wasnt about to make two diferent ECM's, etc.

So on military dmax's, they actually have two electrical systems, two alternators, etc. The truck body and engine runs on the normal 12 volt system, and then the separate 24volt system is only for the military-specific stuff/accesories.

 

[strmh]

Sounds good thanks for the info. The available 24v from Mean Green threw me off.....

 

[stoddardlly]

i didnt read all 20 pages but i myself have experienced the no crank but not per say a grinding noise. ive heard the gear enguage the flywheel but not spin (one way clutch slip makes a just odd noise). had it happen before with other starters. replaced and had no problems before but make sure you look the flywheel over if your hearing actual grinding. my dmax i put a acdelco starter in and have no problems since. everytime it was colder out when it did it.

 

[Joey-D]

Just subscribing. 2004 lly acdelco starter 214k. Just bought the truck. Grinds every 3-4 starts.

 

[LLYMike]

I bought a used stock starter on Ebay. Installed it and have had zero issues! Has to be something with aftermarket or remaned units.