new owner of 99 f350 7.3l 6speed
 

So I am new to these powerstrokes I have owned a cummins for years.the questions are do these have dual mas flywheels?are they the same flywheels the same as the old n/a 7.3 idi engines?what kind of oil do th zf 6 speeds take?what are the more commen problems?what is the most commen reason for the cruise control to quit? Any input will most likly help thanks

Does anyone own these tucks here?

Not where if the SD has a dual mass but the OBS do. They are not the same as the old ones. I use scheaffers ATF in my trans. Not sure about the cruise.

Do the dual mass flywheels go bad like the early ones? Up to 99 that is

All clutches go bad. Doesn't matter if its dual or single mass

I'm not asking about the clutch I'm askin about the flywheel I know on the old ones the dual mass flywheels had a habit of letting go and breaking the bell housing

The other thing is my ac works and then peters out if I shut it off for awhile then back on it works and also all my air comes out the defrost vents hot or cold advice?

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Does the cruise work off of vacume in any way?

problem with the cruise could be a lot of things. Doubt its vacuum related though. Check clutch safety switch, brake switch on the brake resivoir that kills the cruise, fuses etc.

Your air vent issue is probably a vacuum problem though. Check your vacuum pump and your 4x4 hub locks and find the leak or whatever the issue is

Thanks

Congrats on the Truck!:c:

Thanks it was a hunt to find what I want for a price I could aford but we managed it needs a little tlc but a solid truck either way the worst damage is from not being used and sitting I western washington I live in idaho so its a lot dryer here

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I am sure I will have a lot more questions

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One more question on the cruise my truck didn't come with an owners manuel any idea which fuse is for the cruise

So I am now tryin to get my steering knuckles apart t change the upper ball joints and I am wanderin what size pickel forks are needed and what autozone charges to rent the press

Hi Adam, I have a 2000 7.3 with the zf6 trans as well. I was looking around forever to find the best atf for my manual. (Weird but that's the way they made it) anyways I ended up with the mobil 1 full synthetic atf. Stuff works great man. Quieted it down alot.
By the way how many miles on your rig?

Thanks for the info I have 174k but suposedly the engine only has 30-50k on it something about getting dusted which I wouldn't doubt with the air box built the way it is