Replacing Duramax LB7 Injectors 01-04 tips and hints
#32
Wow.. that was something else. Makes me want to try it. I just got back from the dealer and they told me I need them changed (the second time) at a cost of 5000.00. I am three months over the warranty. Just got off the phone with gm but i know where thats gonna get me.
EXCELLENT job on those pics and instructions!!!
---AutoMerged DoublePost---
Now where do I get cheap injectors ?
EXCELLENT job on those pics and instructions!!!
---AutoMerged DoublePost---
Now where do I get cheap injectors ?
Last edited by dosserdog; 12-17-2009 at 04:32 PM. Reason: Automerged Doublepost
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2500HeavyDuty (12-17-2009)
#33
i went with pensacola injectors and ended up going through 3 sets before i forked the money over for brand new ones from the dealer, long story short i should have went and bought new ones right away.
the injector lines are a pita to clean the corrosion is caked on there.
the driver side will give you the most trouble, cause of the firewall, having alot of extensions and allen wrenches will help. alot of stuff can be moved anf pushed around to give you more room
the injector lines are a pita to clean the corrosion is caked on there.
the driver side will give you the most trouble, cause of the firewall, having alot of extensions and allen wrenches will help. alot of stuff can be moved anf pushed around to give you more room
#35
if there was any confusion from my earlier post
#36
#37
#38
Got them from a GM dealer who has an online website. They have some pretty awesome prices. I bought the injection unit for my wife's GMC 1500 w/5.7L from them a year or so ago. Ethanol screwed it up. They were $400-$500 les than any where else I could find. Funny enough for the guys from central Calif, they are in the SF area. Want to say Santa Clara but I forget.
No corrosion on the injector lines. My injectors were replaced under warranty twice. 2nd time they replaced at least 7 of the lines. Thought it was all 8, but when I replaced the injectors this time, 7 of the lines were shiny "chromish" looking, but the line on #3 cyl was dull greenish color. ???
No corrosion on the injector lines. My injectors were replaced under warranty twice. 2nd time they replaced at least 7 of the lines. Thought it was all 8, but when I replaced the injectors this time, 7 of the lines were shiny "chromish" looking, but the line on #3 cyl was dull greenish color. ???
#39
#40
I am currently tearing down my '01 LB7. When I removed the upper valve cover, I found most of the fuel inlets to the injectors caked in crud. One was so caked, I'm sure there was NO fuel getting to the cylinder. Is this a sign to replace the injectors? (obviously the fuel filter died at some point in the truck life)