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11-04-2025, 20:58

Bojangles started a thread 6.2l bore clearances in 6.2L Diesel - Tech Support - Troubleshooting - Performance

Rebuilding a 6.2l. The bores had some pitting which was probably caused by water in the oil. Engine has been sitting for a long time. I honed all...

9 replies | 135 view(s)

10-31-2025, 06:34

JohnC started a thread Puzzling problem with Mercedes OM651 in General Diesel

I have a Mercedes GLK250 with the OM651 engine. I'm getting a code for excessive EGR flow and it sets at idle or during decel. We've tried a number...

6 replies | 128 view(s)

11-16-2025, 10:19

Yukon6.2 started a thread 03 Heater issues in 2500HD/3500 HD Trucks & Drivetrain

Hi i have an 03 GMC that has the dual zone control for the heater. The blower motor stays running on high no matter what you do including...

6 replies | 62 view(s)

11-18-2025, 10:06

spongebob started a thread coolant leak in Duramax 6600

it's on the drivers side, I thought I fixed it when I found the J shaped heater hose was leaking at the fire wall..but it has come back. I read...

3 replies | 26 view(s)

11-03-2025, 14:29

trower started a thread 1986 6.2l Electric fuel pump in 6.2L Diesel - Tech Support - Troubleshooting - Performance

I replaced the mechanical lift pump on my GMC a few years back. The new one started leaking again so I purchased an Electric pump and installed it on...

2 replies | 57 view(s)

Yesterday, 17:40

spongebob replied to a thread coolant leak in Duramax 6600

thanks I;; try that 1st..I did replace the "J" hose a couple of years ago..

3 replies | 26 view(s)

Yesterday, 17:33

DmaxMaverick replied to a thread coolant leak in Duramax 6600

It's usually just the plastic quick connectors. If so, you don't need to replace the entire hose assembly. The connectors are available at almost any...

3 replies | 26 view(s)

Yesterday, 10:31

spongebob replied to a thread coolant leak in Duramax 6600

well well well...I made a trip out of town and on my way back home (80 miles one way) I got the coolant lever low light..I pulled over and popped the...

3 replies | 26 view(s)

Yesterday, 09:13

Yukon6.2 replied to a thread 03 Heater issues in 2500HD/3500 HD Trucks & Drivetrain

There were a few shown, this one was the only one that said it was for a dual climate control. I will probably do as you say and find the module and...

6 replies | 62 view(s)

11-19-2025, 10:22

DmaxMaverick replied to a thread 03 Heater issues in 2500HD/3500 HD Trucks & Drivetrain

It looks about right, but like I said, it's been a while. Look up the manual A/C module and compare size, connector pins, and price. It should be...

6 replies | 62 view(s)

11-19-2025, 09:17

Yukon6.2 replied to a thread 03 Heater issues in 2500HD/3500 HD Trucks & Drivetrain

Bobcat made it inside with a temporary tank... The fun will be getting to the issue Is this the module i need to find when i dig into the heater?...

6 replies | 62 view(s)

11-18-2025, 11:58

DmaxMaverick replied to a thread 03 Heater issues in 2500HD/3500 HD Trucks & Drivetrain

Most definitely easier. Your Bobcat is a fuel tank, with a bunch of accessories attached to make it more useful.

6 replies | 62 view(s)

11-18-2025, 09:35

Yukon6.2 replied to a thread 03 Heater issues in 2500HD/3500 HD Trucks & Drivetrain

Thank You I appreciate the direction to go. Now to get it in a warm place to deal with it. Sounds a bit easier than getting to the fuel tank on my...

6 replies | 62 view(s)