[MNDiesel]

Hey gents,

My old man is thinking about getting an 6.5L. Anyone had experience with these? Any insights on pros\cons. Here is the CL ad. Anything you have for input would be appreciated. Thanks in advance.

**1998 HALF TON 4x4 Z71 6.5 DIESEL GMC**

 

[seth999]

well as soon as you get it put a PDM relocation kit on it or you'll have trouble soon they die alot because of the heat in their crappy location...also the lift pump under the driver side will die occasionally and they are slow stock...besides that they run and drive ok...i own a 6.5 1-ton

 

[MNDiesel]

What is a PDM relocation kit? He is just using it to tow his bass around.

 

[beanpole209]

What is a PDM relocation kit? He is just using it to tow his bass around.

basically, the brain box is located on the injector pump. Its got a thermal connection to it, just like a processor in a computer. GM did that for cooling thinking the fuel would cool it, but most of the time the thermal gell creeps out between the surface and the computer(pcm) fries.

The PDM relocation kit is an extension cord for it, and allows you to relocate it to a safer (cooler) place.

I think probably the other problem is water fuel seperation, and the lift pump. The engine has high compression compared to the duramax, thus it cant take water getting in the fuel at all.

I would prolley get the PDM relocater, a small aftermarket lift pump, and an aftermarket fuel filter, water seperater setup and you should be good to go.

 

[jgs11]

This is a very good website for the 6.5TD... SSDiesel Supply

Walt really knows his stuff!:drink

 

[MNDiesel]

cool. Thanks for the info.:rockin

 

[jgs11]

glad i could help

 

[MNDiesel]

I was born in Mansfield, Right next door to Ashland.

 

[KSL667]

we had three half tons with the 6.5L 94 96 98 and they all ate the autos apart like nothing when towning

 

[MNDiesel]

Really? the tranny was a little weak?

 

[jgs11]

I was born in Mansfield, Right next door to Ashland.

small world, im over in mansfield all the time

 

[saskboy]

Around here they are good if you use it as a truck and thats it. If you intend to pull a trailer or make it work like a diesel should they sh*t thier pants. Whether it be the problems mentioned above or a broken crank or glow plugs and burn valves on a yearly basis they are just not a heavy work truck engine at all. No matter what anyone tells you.

 

[Retired Fire Captain]

I had a 97 2500 That I drove for over 12 years. Loved it. It did start dying suddenly towards the end. I sold it to my stepson who is still driving it. The PDM was changed and all problems disapeared. Its got over 150,000 miles and runs great. Light towing it will do a great job.

 

[MNDiesel]

I will pass on all the good info. You guys rock.

 

[Tow Master]

Man no offense but in the long run he is probably better off just getting a 350. I had 2 and there under powerd and a PITA.

The good things about that truck is it got low miles. But, its a halph ton.

This is a very good website for the 6.5TD... SSDiesel Supply

Walt really knows his stuff!:drink

I second that site! :rockin