Coolant in Oil, Frozen Block - Page 5 - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 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, Etc.

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post #41 of 55 (permalink) Old 02-27-2017, 02:01 PM Thread Starter
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Started injector cleaning today, made a mess because I didn't realize the truck had a lift pump and it sprayed fuel everywhere when I disconnected the fuel lines and started the engine.

Can anyone identify this pump?

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post #42 of 55 (permalink) Old 02-27-2017, 02:54 PM
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Coolant in Oil, Frozen Block

Not a fass or an air dog, can't Help you. You sure it's a lifter pump?


2004 Silverado Cali lb7, Airdog ll 165, fresh sticks at 325k, Custom tune on v2 for daily driver, 33x12.5 nitro at on 20 inch American steal wheels, modded factory air box, Profab Intake Horn, Batmo Wheel, Turbo port and polish, Full EGR Removed w/ fed belt, 3.5 inch MBRP Downpipe, Full five inch MBRP Exhaust w/ 6 inch tip, 10mm lbz cp3 pump, Dual Yellow Top Optimas, High Output Alternator, Cognito Pittman and idler w/ support kit, Cognito Contol arms, Drilled and Slotted Rotors on all four Corners, fed Y Bridge.
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post #43 of 55 (permalink) Old 02-27-2017, 03:10 PM Thread Starter
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Ya I found the fuse for it and it shut down the fuel coming out of the 1/2 fuel line.
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post #44 of 55 (permalink) Old 02-27-2017, 03:26 PM Thread Starter
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Cleaning sure makes a difference. Here it is after running the GM cleaner for an hour and half. Still not perfect, but big improvement. I wonder if running another bottle would improve it more.

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post #45 of 55 (permalink) Old 02-27-2017, 10:44 PM
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Much better. Ya, give it another shot.

I can't tell you what pump that is but it doesn't look like a carter, walbro or airtex.
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post #46 of 55 (permalink) Old 02-28-2017, 02:40 PM Thread Starter
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While waiting for the fuel filter head to arrive, I tackled the steering issue.

Got the steering gear box out, the pitman arm had a ton of play on the splines and there was some gear play.

Ordered Moog pitman arm, idler and idler arm. Grabbed a remanned box from Autozone. Should have it all here tomorrow.
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post #47 of 55 (permalink) Old 02-28-2017, 02:42 PM Thread Starter
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Anyone know a good tool to remove the center link from the idler arm? Pitman puller can't grab it, it's too thick. I guess I can just bang it with a pickle fork.
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post #48 of 55 (permalink) Old 02-28-2017, 04:34 PM
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Didn't check the old filter to ensure the gasket came with it...... Oh well. Lesson learned.



Quote:
Originally Posted by kaane View Post
It's alive!

...I did forget to hook up one transmission cooler line and got 4 quarts of transmission fluid dump all over my garage and driveway lol.

Put a can of seafoam in the oil as well.

Ken
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post #49 of 55 (permalink) Old 03-01-2017, 08:53 AM
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Quote:
Originally Posted by KenW56148 View Post
Didn't check the old filter to ensure the gasket came with it...... Oh well. Lesson learned.
If you only do this once in your life you will be ahead of most of us.

One of the most neglected items on any truck is the steering gear box. I don't know how many I have adjusted and surprised their owners with a big improvement in steering but it has been a bunch. Usually it can be done in 10 minutes. Add to that some ball joints, tie rod ends and a pitman and idler arm and it can make an old worn out truck feel young and tight again. It can mean the difference between liking and not liking your truck.
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post #50 of 55 (permalink) Old 03-10-2017, 05:55 PM Thread Starter
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Finished the steering system. Installed new steering gear box, new Idler arm and pitman arm, much better steering feel.

One injector is still out of spec and I noticed that my Desired RP does not match my Actual RP. I can't get more than 12,000 psi out of the system. Looks like it's time for a CP3 and injectors.
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