I got excessive amount of fuel in crank case,water in fuel light is on,and runs rough

chevyburnout1

Fixing it till it breaks
Aug 25, 2008
2,368
1
38
Berthoud, CO
I installed a set of $100 injectors for a friend. One injector didn't even fire until fuel rail pressure hit 15,000psi. And when it did it literally just turned "ON", aka dumping fuel straight into the cylinder with no timing or control at all.

However the company warrantied it out and the truck is still running today. So you get what you pay for.
 

2004duramax3500crewcab

Dmax all the way
Feb 14, 2016
26
0
0
Indiana
No Napa ones aren't cheap ones I can get reman Bosch or brand new ones only reason I was gonna go with Napa is cause I get a 50% discount cause my mother works at Napa auto parts warehouse Original price for remans was $287 a piece and brand new ones was $347 so basically I'm getting half off from those prices but I'm not gonna buy no off brand junk I'm all about you get what you pay for
 

2004duramax3500crewcab

Dmax all the way
Feb 14, 2016
26
0
0
Indiana
The Kansan I'm pretty sure it goes over 2000rpm while driving but I haven't checked really I know when you slam on the gas pedal it gets up to speed then it just loseseems power and won't go no faster unless you let off the pedal and Re accelerate normal
 

The Kansan

New member
Aug 30, 2013
179
0
0
Topeka, KS
I may be wrong but i didnt think you could buy Brand new injectors for an lb7 i thought bosch only sells reman injectors that they rebuild, maybe Brent will chime in he would know about that. Is there a check engine light on? Does it come on when it loses power? Plugged fuel filter will do some funny stuff, problems that you wouldnt think a plugged filter would cause. I would start there and i would pull any codes that the truck has and post them up.
 

2004duramax3500crewcab

Dmax all the way
Feb 14, 2016
26
0
0
Indiana
It probably is the filter and no engine light at all and the brand new ones wasn't bosch but Napa auto parts does sell reman oem bosch injectors so I'm probably gonna go that route depending on the discount they give me cause they are $364 compared to Brent's which are 244 a piece but if I get them half off like I'm suppose to I'll be saving a few hundred dollars for the same injectors
 

2004duramax3500crewcab

Dmax all the way
Feb 14, 2016
26
0
0
Indiana
I have a new fuel filter I'm gonna put on it probably this weekend cause my old duramax when it went into limp mode it would throw codes but when I get the injectors tested I'm gonna serif they find any history codes
 

Brent@LDS

Vendor
Vendor/Sponsor
Aug 23, 2011
651
1
18
Wisconsin
It probably is the filter and no engine light at all and the brand new ones wasn't bosch but Napa auto parts does sell reman oem bosch injectors so I'm probably gonna go that route depending on the discount they give me cause they are $364 compared to Brent's which are 244 a piece but if I get them half off like I'm suppose to I'll be saving a few hundred dollars for the same injectors

Our injectors run $237.38 each with also includes the seals free of charge.
 

pgr11

Member
Sep 8, 2014
114
0
16
Hesperia, CA
It probably is the filter and no engine light at all and the brand new ones wasn't bosch but Napa auto parts does sell reman oem bosch injectors so I'm probably gonna go that route depending on the discount they give me cause they are $364 compared to Brent's which are 244 a piece but if I get them half off like I'm suppose to I'll be saving a few hundred dollars for the same injectors
The money you save won't be worth the customer service and support you will receive buying from Brent. All the little things add up and he knows everything you need to get you back on the road quickly.
Our injectors run $237.38 each with also includes the seals free of charge.
 

roxyfever

New member
Feb 11, 2016
191
0
0
terrell tx
They changed midway thru 04. Late 04 is lly

If my memory is still good the 8th digit in the vin will say as follows
lb7 is vin code 1
lly vin code 2
 

57dmax

New member
Feb 21, 2016
5
0
0
Pa
Our 2004 lb7 did the same thing ran great but fuel in the oil, changed injectors fixed the problem.
 

2004duramax3500crewcab

Dmax all the way
Feb 14, 2016
26
0
0
Indiana
Ok so changed the fuel filter today and truck runs way better no hesitation and when I get on it while driving it performs as its suppose to but I still go white smoke which has a raw fuel smell which I know is a sighn of bad injector and you guys told me that one of them can be cracked which is why there's fuel in the crank case but if that's true will it still run fine even with cracked injector
 

2004duramax3500crewcab

Dmax all the way
Feb 14, 2016
26
0
0
Indiana
Ok sounds good mine did have a hesitation until I changed the filter today now runs fine just gotta keep an eye on oil and keep it fresh until I get new injectors
 

motoking_1990

Active member
May 9, 2011
1,957
5
38
Terre Haute, IN
The fuel filter is not the fix. If you have a cracked body you want to get that replaced asap. I would not drive it much with it making oil, that's kind of reckless in my opinion. If you cant afford injectors I know you can't afford an engine or engine build from the piston bottoming onto oil/diesel.

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