Search results

I had an '03 and I have an '06 and also a '98 3500HD they have all been loaded to over 25,000lbs on a daily basis. The biggest thing was upgrading the tires on the 2500HDs to wider heavier load rated tires. I ran a Quadzilla chip with a 70HP tune when pulling on the 03. The 06 has an...

Drove off the lot in Aug. 06 and now has 240,000kms. I haven't been putting much miles on it in the last year but the first two years it was rarely unhooked from my 15,000 lb gooseneck. Drove it off the lot pulling 14,000lbs.

My LBZ is not even 3 years old. Drove it off the lot pulling 14,000lbs and it has rarely been unhooked since. Very little maintenance done. Both front wheel bearings about two months ago and brakes and tires. It now has over 150,000 miles. This is used what it was meant for everyday...

I gross 25,000#(truck and trailer) every day of the week with 4.63s in my 3500HD. It pulls not too bad. Nothing like the DMax but pretty good. Just get the boost built up before the hill, try to avoid the downshift and watch the temp gauges. A gooseneck trailer is also the way to go when...

Put in a remote mount D-tech PMD with cooler last night. Works great. I got a #9 resistor with it. I swear it had more power now but I didn't think the it would relearn the new resistor this soon. What is the procedure for learning the new resistor? I know it probably doesn't have more...

I don't go there much anymore as well. I just found this site with google by accident one day and have never looked back. Many of the original guys from years ago. Much more enthusiast based and open discussions. Keep it going!

Just some more information from an injection shop I called. They said you can test the output of the PMD. I took the harness from the PMD to the pressure side of the pump and tapped into the two wires. Put your meter on AC and you should see 1.5 to 3.0 V on the output when cranking. Mine...

OPS is cheap. I'd just replace it. On the newer trucks the lift pump relay is activated by the computer on startup, not sure on yours though.

Update. Truck is dead. I understand that all the things found do not make it stall or quit they just don't help. Found that the lift pump was also faulty. It was not always working so it has been replaced now as well. The new OPS switch I had bought did not work and it was replaced. New...

PMD is next but it will take a week to get it. Unless I can find someone local that doesn't want to rip me off. Might hot wire the fuel shutoff solenoid on the injection pump in the meantime in case that might be an issue. It just cuts out, no smoke nothing and fires back up or doesn't...

Update. Running bad this morning. Put a fuel pressure gauge on teed into the inlet on the injection pump and it reads 7.5psi and doesn't drop below 4 psi. When the engine stutters the pressure goes up so the problem is likely the PMD. That will be my next step.

Update. The fuel filler neck had a crack and leak and also had a gas cap not a diesel. Now I get a woosh when opening the cap. Truck is also running much better. Pulled the trailer for the first time last night (15k gooseneck - probably grossing combo at 15-16k). I think the system could...

Thanks TD. I didn't know about the lift pump sock in the tank. WIth almost 500,000kms and an original tank I think that should be investigated. Truck is very heavy duty so it only gets about 10mpg. Thats a lot of fuel going through that sock. I suppose the dealer is the only place to get a...

I doubt the wastegate solenoid as it doesn't really smoke when stumbling. I can also hear the turbo whistling. Pissed off about the GM-4 find but at least the block is a newer one. I believe it was actually a GM crate motor as the valve cover says "New 6.5" with the GM Logo. I also suspect...

I just picked up a 98 3500HD (15000lb gvw) with a 6.5, auto, dana 4.63 rearend chassis cab. I have owned a '97 and an '03 gm diesel so I am pretty familiar around diesels. I currently own an '06 Duramax but wanted a good work truck to take some pressure off the Duramax. My first question is...