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11-27-2025, 16:13

spongebob started a thread Heater hose "quick" disconnect....how to in Duramax 6600

when putting on a new connector, is the "tool" used that took the connector off?

11 replies | 554 view(s)

12-14-2025, 16:08

spongebob started a thread anti freeze question..,,, in Duramax 6600

I dropped the bottom radiator hose, let it drain, blew wind in the tank, removed the bolt in the thermostat housing..then replaced bottom hose and...

13 replies | 126 view(s)

11-22-2025, 15:59

Dvldog8793 started a thread 2018 l5p grenade in Duramax 6600

Howdy everyone! I have not been active here for several years, life just happens and my diesel truck herd has thinned out a little. However...my...

4 replies | 474 view(s)

12-08-2025, 17:50

spongebob started a thread egr heater pipe part in Duramax 6600

mine got broken during the turbo replacement, its the glass-reinforced plastic part on both sides of the engine, that go into the intake...When I...

6 replies | 158 view(s)

12-14-2025, 15:05

The Munz started a thread Severe Blow-by w/only 104K miles! in 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance

I sold my '94 K2500. Current: 1993 C3500 6.5 Auto 4x4 1-ton SRW 104K miles. Obvious oil drips/seepage on chassis & turbo area. Have put nearly 2K...

7 replies | 80 view(s)

11-28-2025, 16:12

Dvldog8793 started a thread 2018 chevy 2500HD engine pull in 2500HD/3500 HD Trucks & Drivetrain

Question for those that have done an engine removal... GM service book says pull it out the front. A few of my mechanic friends say lift the...

1 replies | 474 view(s)

12-19-2025, 05:08

Robyn replied to a thread 6.5L Turbo Diesel Blazer Project in 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance

Working on the gates, barn doors, or anything on the back end of these rigs is not usually pleasant.... I had to do some work on the two piece...

256 replies | 324446 view(s)

12-17-2025, 18:15

spongebob replied to a thread anti freeze question..,,, in Duramax 6600

O'tay...

13 replies | 126 view(s)

12-17-2025, 14:43

DmaxMaverick replied to a thread anti freeze question..,,, in Duramax 6600

Zero F, or thereabouts, is GM/Dexcool's weakest recommended concentration, at about 33%. 50% is the industry standard recommendation for any...

13 replies | 126 view(s)

12-17-2025, 14:27

More Power replied to a thread anti freeze question..,,, in Duramax 6600

The two Duramax engines I've replaced head gaskets on both took 6 gallons to refill the cooling system.

13 replies | 126 view(s)

12-17-2025, 14:21

More Power replied to a thread 6.5L Turbo Diesel Blazer Project in 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance

Sarah and I ordered a new front bumper for the Blazer - a painted/primed bumper, with holes for the license plate bracket and the diesel cooling...

256 replies | 324446 view(s)

12-17-2025, 08:09

spongebob replied to a thread anti freeze question..,,, in Duramax 6600

Heres my deal, right now I have 4 qts of 50-50 and 2 qts of water, giving me a 0* protection.

13 replies | 126 view(s)

12-16-2025, 13:46

More Power replied to a thread Duramax Head Gasket Replacement in Duramax 6600

Slowly moving forward! I recently bought this Harbor Freight diesel compression tester for about $100. Aside from simply a bad injector, an out...

163 replies | 233272 view(s)