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| 04.5-05 LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect |
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07-12-2008, 07:17 PM
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eBay Motors
#1 (permalink)
| | Junior Member
Join Date: Jul 2008
Posts: 1
| Running Bad
I have a 05 duramax,started running bad,changed fuel filter,runs like on 3 cyl.let it set shortly ,crank it up and runs fine for a few minutes,then runs bad again,any help.Thanks | 
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07-12-2008, 07:48 PM
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eBay Motors
#2 (permalink)
| | CUSTOM RICER STEAMER!!
Join Date: Mar 2008 Location: Comin to a city near you!!!
Posts: 1,678
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More info,type truck?Mileage?Year?Fill the sig out and then we can help out.Hard to say,we don't know whet ya got  
__________________ 2006 GMC 2500HD4x4 sb cc LBZ!!!  52k
2002 GMC 1500 2wd x-cab-sb 5.3l.. Wife drives
1987 89,000k 305H.O. 700-r4
1978 Malibu[2dr]350/350hp TH-350 trans
Mods w/LBZ... Full straight piped [no cat,no muff!!]
Superchip Flaspq,res mod/,285M/T tires
:  Edge GONE,Bullydog SOLD,thank God!!EFI soooooonnnn!!  [SIGPIC] | |
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07-12-2008, 08:39 PM
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eBay Motors
#3 (permalink)
| | Senior Member
Join Date: May 2008 Location: Anchorage, AK
Posts: 253
| ^^^ what he said 
__________________ "No good decision was ever made in a swivel chair"
06 Silverado 2500 cc/sb Silver
6.6 Duramax LBZ BABY!
H2 Wheels w/BFG A/T
Missing Kitty... Help
Edge Evolution 
08 Yamaha Big Bear 400
3 months old... 600+ miles | |
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07-12-2008, 08:48 PM
|
eBay Motors
#4 (permalink)
| | Senior Member
Join Date: Aug 2007
Posts: 243
| check your injection harness. common on lly.
__________________ 2002 Crewcab short box 3/4 tonHD lb7 W/Allison stock, edge box with monitor(soon to be in the trash!  ),5" Jeg's Subway tunnel exhaust straight piped, cranked up torsion bars. saving up for SUNCOAST STAGE FIVE trans $1000 so far | |
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07-12-2008, 08:56 PM
|
eBay Motors
#5 (permalink)
| | CUSTOM RICER STEAMER!!
Join Date: Mar 2008 Location: Comin to a city near you!!!
Posts: 1,678
| ^^^^Good tip,forgot that one...
__________________ 2006 GMC 2500HD4x4 sb cc LBZ!!! 52k
2002 GMC 1500 2wd x-cab-sb 5.3l.. Wife drives
1987 89,000k 305H.O. 700-r4
1978 Malibu[2dr]350/350hp TH-350 trans
Mods w/LBZ... Full straight piped [no cat,no muff!!]
Superchip Flaspq,res mod/,285M/T tires
: Edge GONE,Bullydog SOLD,thank God!!EFI soooooonnnn!! [SIGPIC] | |
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07-13-2008, 12:42 PM
|
eBay Motors
#6 (permalink)
| | Junior Member
Join Date: Jul 2008 Location: Georgetown, KY
Posts: 10
| Quote:
Originally Posted by dmax500  check your injection harness. common on lly. | X2. If it sounds like a bag of hammers, there's a good chance you've got a rub-through on the injector harness where they zip tied it to the alternator bracket. I'd check there. If it's worn through, you know the problem. If it's not, I'd still cut the zip tie, insulate the sucker with a split piece of heater hose, then carefully zip tie it back in place.
Good luck!
__________________ Randy '04.5 Silverado 2500 HD LLY/Allison Dark Spiral Gray Metallic, EC/LB LT 4x4, leather, Nerf bars, DiabloSport Predator 2.0 (+85 hp  ), Power Service, AC Delco stock filter w/TxC CAI, EGR blocked (fingerless), resonator blocked, PCV rerouted, Silverline 4" 409SS, All Headlights mod , HIR lows and highs w/SilverStar fogs, OnStar, Du-Ha USS, ARMA spray liner, DrawTite Activator II, VentShades, Lund Interceptor Bug Deflector, Lund Genesis Tri-Fold Tonneau Cover, Michelin LTX M/S 245/75 R16 "Suppose I were a congressman. And suppose I were an idiot. But I repeat myself..." - Mark Twain | |
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