2001 7.3 Power
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Freshman User
Joined: Jul 2010
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2001 7.3 Power
Guys, I have a 2001 F-450 7.3 6 spd. I bought the truck last year as a cab & chassis which i have since installed a 11ft down easter dump. The truck runs good but I am wondering about the power the truck has. This is my first diesel so i have nothing to compare it to.
Last year i did have to do the driver side UVCH in which this forum helped me diagnose. The truck is running excellent since then but just a few days ago I used the truck to tow my 30ft Laredo TT home. I was expecting the truck to perform much better but I could not keep up with my buddy in his new dodge sport with the 5.7L hemi.
Is there some simple tests I could perform on various components to see if everything is as it should be. I am fairly mechanically inclined and work as an instrumentation technician on a oil & gas facility offshore. Any suggestions would be good.
Last year i did have to do the driver side UVCH in which this forum helped me diagnose. The truck is running excellent since then but just a few days ago I used the truck to tow my 30ft Laredo TT home. I was expecting the truck to perform much better but I could not keep up with my buddy in his new dodge sport with the 5.7L hemi.
Is there some simple tests I could perform on various components to see if everything is as it should be. I am fairly mechanically inclined and work as an instrumentation technician on a oil & gas facility offshore. Any suggestions would be good.
Senior User
Joined: Sep 2007
Posts: 353
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go here: www.dptuner.com problem solved. The factory power these trucks came with makes them a bit lethargic...Mr. DP unleashes the real power these motors make..then bye bye Mr. Hemi 
Fleet Mechanic
Joined: Aug 2010
Posts: 1,466
Likes: 162
From: Sedalia, CO
I'd check first for boost and exhaust leaks. A boost leak detector is easy to make, but you can check and tighten the six boots between the turbo and heads as a start. For exhaust, look for soot stains on the up-pipes (behind the turbo) and around the exhaust manifolds (particularly around cyl #8, on the driver's side in back).
Do you have boost and EGT guages, by chance? Post up numbers if you do.
Mark
Do you have boost and EGT guages, by chance? Post up numbers if you do.
Mark
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Freshman User
Joined: Jul 2010
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I'd check first for boost and exhaust leaks. A boost leak detector is easy to make, but you can check and tighten the six boots between the turbo and heads as a start. For exhaust, look for soot stains on the up-pipes (behind the turbo) and around the exhaust manifolds (particularly around cyl #8, on the driver's side in back).
Do you have boost and EGT guages, by chance? Post up numbers if you do.
Mark
Do you have boost and EGT guages, by chance? Post up numbers if you do.
Mark
Laughing Gas
Joined: Nov 2010
Posts: 1,193
Likes: 2
From: D.C. but heart's in TEXAS
It's sort-of difficult to compare a 2001 F450 work-designed vehicle weighing close to 9,000 lbs with a 6-speed manual transmission with a 2011 Dodge "Sport" gas Hemi weighing in around 6,000 lbs. They have two different functions, and I'm sure your F450 is probably geared low with 4.10 or greater rear differential.
Now, that being said, the 7.3L can be modified greatly to increase power and performance...but it's still not the greatest comparison.
You need to open up the intake, open the exhaust with a 4" turbo-back exhaust, put gauges on it (to know what's going on) and then chip it with something like a DP Tuner.
As previously mentioned, boots can be leaking, up-pipes, etc. that will cause you to lose boost and power too. So check all that stuff out.
I'd rather have your truck than your friend's. Am I biased? Yes. I love "HERS" Excursion more today than the day I drove it off of the lot new in 2000.
Now, that being said, the 7.3L can be modified greatly to increase power and performance...but it's still not the greatest comparison.
You need to open up the intake, open the exhaust with a 4" turbo-back exhaust, put gauges on it (to know what's going on) and then chip it with something like a DP Tuner.
As previously mentioned, boots can be leaking, up-pipes, etc. that will cause you to lose boost and power too. So check all that stuff out.
I'd rather have your truck than your friend's. Am I biased? Yes. I love "HERS" Excursion more today than the day I drove it off of the lot new in 2000.
Thread Starter
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Freshman User
Joined: Jul 2010
Posts: 45
Likes: 0
go here: www.dptuner.com problem solved. The factory power these trucks came with makes them a bit lethargic...Mr. DP unleashes the real power these motors make..then bye bye Mr. Hemi
Elder User
Joined: Feb 2006
Posts: 765
Likes: 1
From: Eastern Ohio
Ok, had a big post typed up and hit the wrong button. Condensed version:
Even bone stock you have should walked all over that Hemi when both are towing. Those things are not real impressive with a load behind them.
7.3's run good even with a lot of problems.
Check boost, fuel pressure, ICP and clean EBP sensor and tube.
I'm having the same problem. Running good stock, turn it up or put a load behind it and problems show up. I have low ICP, still looking as to why.
Even bone stock you have should walked all over that Hemi when both are towing. Those things are not real impressive with a load behind them.
7.3's run good even with a lot of problems.
Check boost, fuel pressure, ICP and clean EBP sensor and tube.
I'm having the same problem. Running good stock, turn it up or put a load behind it and problems show up. I have low ICP, still looking as to why.
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Elder User
Joined: Feb 2006
Posts: 765
Likes: 1
From: Eastern Ohio
It's sort-of difficult to compare a 2001 F450 work-designed vehicle weighing close to 9,000 lbs with a 6-speed manual transmission with a 2011 Dodge "Sport" gas Hemi weighing in around 6,000 lbs. They have two different functions, and I'm sure your F450 is probably geared low with 4.10 or greater rear differential.
Now, that being said, the 7.3L can be modified greatly to increase power and performance...but it's still not the greatest comparison.
Now, that being said, the 7.3L can be modified greatly to increase power and performance...but it's still not the greatest comparison.
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