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Did they blow with a rust like texture on the tips? If so timing is too advanced somewhere in your tune.

A 6.5 is a punched out 6.2, period. With the same turbo setup off a 6.5 slapped on it should run the same. The precups do make a difference. But as long as it’s not the delivery van econo NA cups it’s fine. You can turn down the 6.5 pump easily enough. I would keep looking for a better engine...

Is your rig in good enough shape to justify the cost of a new engine? Do you need it enough? It’s an uninsurable risk of new engine cash sunk into it after a short time if the rig burns down or gets stolen. Used military engines are, well the good ones, are scarce now. Most are scrap metal...

Your not. Without a shroud the fan is helpless moving hot are behind the radiator NOT through it … The high side of the A/C overheats and cycles the compressor too frequently at a stoplight. It can’t get the oil moving well cycling like that. Combine that with a hot compressor and extreme high...

One on the compressor is for high pressure safety cut-out. (Before the system explodes or blows something out.) The switch on the liquid line after the condenser forces the system into recirculate when the high side pressure is high to reduce system load. (Limited design that is worse when the...

To the OP my signature line details the TSP condenser I put in my Dodge Cummins. Money well spent! But after you get the system working…

The tensioner for 1995 and older engines have to deal with the compressor load on the belt so they have a stronger spring than the 1996+ engines that have the compressor on the driver side of the engine. As above verify belt routing and proper length. Aftermarket doesn't F'N get it and they all...

What did you find with it?

^^^ Park it till you or buddies can check it out. Rear end locking up is a great way to suddenly depart the roadway and hit the wall…

Use a magnet to see if they are metallic. An educated guess is the silver colored lining coming off the inside of the tank. It will clog the tank sock and it’s bypass valve. I also question the contamination on the rubber filter gasket. Is there a lift pump before this filter?

@Will L. Maybe the OP can clarify how much coolant it was using. "Adding" coolant means it was either going way over the ring ruining 210F and popping the cap open OR already had a head crack/gasket leak eating coolant. Keep it at 210F max and consider 220F an emergency pull it over. Lose a...

Get a better turbo than the OEM GM Asthma Attack® turbo. It will pay for itself in improved MPG towing. Less heat that can't get out the exhaust from GM's extreme backpressure with the turbo also gives you more power when the fan isn't screaming. You should contact @Twisted Steel Performance...

And some fool has drilled a bunch of holes in the air cleaner housing to CHOKE the turbo and engine on hot underhood air (and raise NOx emissions). Compressing HOT air with a turbo robs power... Get a used housing without the holes.

No. You have a PROBLEM. Start troubleshooting over and NOTHING gets a free pass. It's a year old and "used" at this time. Do you have a fuel heater anywhere is this aftermarket filter setup? Or is it an OEM setup with a fuel heater at the filter? Our 1988 6.2L NA 1/2 Ton Suburban had a...

Run into anything and the drawer becomes a missile. Bad Idea!

Just saying my 1995 had a new out of round, no, off center drum. One of the things I don’t miss. The backing plate also had wear groves on the passenger side. I have also been known to install a set of shoues “backwards” on one side.

What are other nearby sources selling home heating oil for? High sulfur, if that is indeed high, is a 2007+ DPF concern not the HPCR itself. It would also contaminate engine oil the old fashioned way lowering the TBN. Curious what %, if any, of Biodiesel is mixed in? It's an easy button...

I agree. My buddy's 1993 did the flash thing and it was a mode door actuator. Check all of the actuators before looking at the control head. Rec, mode, hot/cold. You could find the "bad actuator" by selecting a mode to match where it was stuck. Then it wouldn't flash on key on if you were fast...

What's in it now? Quite a few gasoline engines to choose from like an LS2 (400HP 400TQ) that make you put a decent transmission behind em and deliver good power and MPG. Slap a turbo or SC on a gas engine for the same complexity. Diesel's TCO is high esp. with the higher fuel price at the...

At least remove the SPAM links from the quotes...