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1999 - 2003 7.3L Power Stroke Diesel  
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99 or 99.5

 
  #1  
Old 07-23-2015, 10:02 PM
mason55
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99 or 99.5

Still learning and reading LOTS and LOTS of post's about everything on the site. One thing I keep seeing is that I assume that there is a difference between a 1999 and a 1999.5? What is the difference and how does one tell if they have and early 99 or an 99.5???
Thanks,
Mason
 
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Old 07-23-2015, 10:36 PM
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There are many small differences, see PDF attached below. One easy visual way to determine what you have is to pop the hood and look at the "spider". Pic shows late on the left, early on the right.
 
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File Type: pdf
99.5 Changes to 7.3.pdf (1.93 MB, 352 views)
  #3  
Old 07-24-2015, 07:48 PM
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Ok nice pic? Doesn't answer my question though? What is the difference?
 
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Old 07-24-2015, 07:53 PM
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Oooops sorry did not see the link explaining the changes. Thanks!!!
 
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Old 07-26-2015, 10:17 AM
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If I were you I'd go with a 99.5, thats the one I have and its been great! And you get the bigger turbo housing too

I believe there were some driveline changes too?
 
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Old 07-26-2015, 10:56 AM
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From scotttahoe:

E99 has much smaller turbo (spools faster, though) think it came from the factory with a wicked wheel.
The early99 has 120cc(AB code) injectors and the Late99-03 has 140cc(AD code) injectors.
The E99 has 2" intake plenums which lets in less air and the L99-03 has 3" intake plenums.
The E99 has a 15* swash plate HPOP. The L99-03 has a 17* swash plate HPOP. 17* is better.

Nothing to do with power but some other differences.
The E99 has one glow plug relay. The L99-03 has one glow plug relay and one air intake heater
relay side by side (along with early '99 CA models) . Both relays are on the passenger side of the fuel
bowl toward the front of the truck.
The E99 track rod has smaller mounting bolts than the L99-03. (except for DRW trucks)
The E99 has shallower rotors than the L99-03. (except DRW trucks)
The E99 has shorter hub-bearings than the L99-03. (except DRW trucks)
The E99 front axle U bolts are square where they go over the spring pack. The L99 U bolts are
round. (except DRW trucks)
The E99 has a different pitman arm than the L99-03. (except DRW trucks)
The E99 does not have the AIH like the L99-03. (except CA model)
The E99 does not have the automatic transmission fluid cooler in the radiator.
The E99 has different size swaybar.
The E99 has no indicator light showing that "cruise" is on. L99-03 has a cruise light that will come on when you set the cruise control. The E99 has the light in the dash already. A newer PCM(Yes it will plug in and will run better too) must be used to make the cruise light illuminate. It is a green light on the right side edge, half way up.
 
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Old 07-26-2015, 11:34 AM
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Thanks Kbarbee this helps. As it turns out I do have 99.5 with all the above mentioned! I am very happy with my purchase! Now time to learn mote about what I have and how to maintain it as this is the first diesel powered anything I've ever owned!
 
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Old 07-26-2015, 04:14 PM
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I was intimidated the first time I looked under the hood of my diesel but this forum quickly helped me learn that working on these engines acually isnt too difficult.

How many miles does it have?
The next step will be checking for boost leaks, feel free to ask away everyone here is very knowledgeable and friendly!
 
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Old 07-26-2015, 07:31 PM
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It does have a lot of miles just over 305,000 but well maintained regularly single owner company truck (bosses truck) kinda truck! It should at the very least get another 300,000 miles to which I will never put on a vehicle living only 2.2 miles from work.
 
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Old 07-26-2015, 11:34 PM
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also with the E99 you will generally find the following emblem on the front fenders as pictured below while my truck was in for its bath....sorry its the best shot I could find showing the emblem at the moment, I can if wanted reupload a new image tomorrow...

 
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Old 07-27-2015, 12:10 AM
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Originally Posted by mason55 View Post
It does have a lot of miles just over 305,000 but well maintained regularly single owner company truck (bosses truck) kinda truck! It should at the very least get another 300,000 miles to which I will never put on a vehicle living only 2.2 miles from work.
305k is a lot of miles in general, but not in this case. These engines go for frikkin ever. I saw a "for sale" advert about 9 months ago for a truck with over a million miles. It was used to tow RV trailers to dealerships and well maintained.

The 7.3 is well known for longevity, but the important part is Ford really sorted out this chassis. The rest of the truck will last too! What goes wrong is very well documented here, and an owner with some mechanical skills can do most of it themselves. This is my first diesel and the learning curve is kinda steep at first. But once you wrap your head around it you'll find it straightforward.

Ok maybe it's just the Ontario sunlight but your avatar pic has a gorgeous truck. Can you post up some more?

Also 2.2 mile commute is kinda short, hopefully it can get up to full operating temp. Helps longevity. Let it warm up and drive slow.
 
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Old 07-27-2015, 12:13 AM
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Originally Posted by mason55 View Post
It does have a lot of miles just over 305,000 but well maintained regularly single owner company truck (bosses truck) kinda truck! It should at the very least get another 300,000 miles to which I will never put on a vehicle living only 2.2 miles from work.
Mine just hit over 250k and I still get compliments on how smooth it idles but I know the injectors are worn or my fuel pump is weak. Still get great power, just remember more frequent oil changes living that close to work. The truck wont get up to operating temp but driving slow you may be able to get decent economy
 
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Old 07-27-2015, 12:20 AM
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And don't forget about adding SCA's to the coolant to stop cavitation
 
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Old 07-27-2015, 01:08 AM
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