96 F350, 5 spd man, no pulling power - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 9 (permalink) Old 07-02-2018, 03:19 AM Thread Starter
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96 F350, 5 spd man, no pulling power

As the title says I have a 96 F350, with manual transmission, and 4.10 rear end that has no pulling power. It runs great unloaded. It just spent a month in the shop and one injector was changed but nothing else was found. The truck runs better but still will not pull a 9,000 pound camper over 65MPH on flat ground, and cannot maintain on an incline. Compression is good on all 8 cylinders, HPOP pressures are good, injectors pass the buzz test, and another test (I don't remember what the test was called.). The turbo was leak tested good, and is producing 13PSI. The fuel tank and pickup tube assembly has been changed, all filters replaced as well. I just read a 26 page thread and someone reccomended replacing all 8 injectors. I have thought of that and I'm considering going with stage 1.5's. I am also curious if I may have a volume problem from the HPOP. The truck currently has 206,000 miles. The truck was bought new by my cousin and sat for 7 years until I got it 2 years ago. It has not ran properly since I got it. It is currently only used as a tow rig. Thanks in advance for any help.
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post #2 of 9 (permalink) Old 07-02-2018, 04:59 AM
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Re: 96 F350, 5 spd man, no pulling power

Intercooler and a tuner/chip will help. Tuner/chip if anything at first because that tends to be cheaper. Depending on your budget, the sky is the limit. My truck stock (59 f250 4EOD 4.10, 231k) would not pull a 30' gooseneck with a 20' conex box more than 65mph on flat ground and a slight head wind. Granted there was some stuff in the box, but the combined weight with the trailer was probably around 10k.

Once I put baby swamps injectors and their tunes on a ts6 chip, it is a major difference. I can tow the same set up at 70mph no problem on flat ground. I can not maintain that speed on hills though. I have to shift down and pull the hill at 50-55mph at around 2500rmp to keep my egt's down below 1200 degrees. But that is because I dont have an intercooler.

1.5's would be a noticeable increase. I would do that, intercool it, maybe upgrade the clutch depending on how old it is... Your HPOP and fuel pump should be able to maintain 1.5's, but I'm not for sure, someone else here will know better.
If the truck is full on stock, Change the down pipe to at least a 3" and strait pipe it. Those two things alone will make a difference.

95 Auto. 4.10 gears. SCLB. Stock besides Baby Swamps Injectors and TS-6 chip with swamps tunes. AFE MaxFlow. Glowshift trans, pyro, and boost. 6.0 IC KC TP38R. Converted EBPV to exhaust brake.
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post #3 of 9 (permalink) Old 07-02-2018, 01:38 PM
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Re: 96 F350, 5 spd man, no pulling power

He's having other issues.

Do you have torque or a way to watch live data while driving?

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1979 chevy c30 dually, sm465, 373's? Converted to 6.2 diesel, pump turned up and advanced a hair.(wrecked)
1994 ford F350 dually 4X4: 7.3 powerstroke, 5 speed. 6637, straight pipe into dual stacks. Cooper discoverer at/3's.
2010 Jetta TDI 40 or so mpg :flippa:
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post #4 of 9 (permalink) Old 07-02-2018, 02:46 PM Thread Starter
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Re: 96 F350, 5 spd man, no pulling power

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Originally Posted by 79jasper View Post
He's having other issues.

Do you have torque or a way to watch live data while driving?

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I do not have live capability but the mechanic does. He said everything appears to be good. I will also add that the mechanic added a Hypertech tuner (that I have the option to return) and I installed a Flo-pro exhaustt system, 3 inch downpipe and 4 inch exhaust with muffler.
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post #5 of 9 (permalink) Old 07-02-2018, 04:13 PM
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Re: 96 F350, 5 spd man, no pulling power

Might have leaky up pipes.
Or a boost leak.

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1979 chevy c30 dually, sm465, 373's? Converted to 6.2 diesel, pump turned up and advanced a hair.(wrecked)
1994 ford F350 dually 4X4: 7.3 powerstroke, 5 speed. 6637, straight pipe into dual stacks. Cooper discoverer at/3's.
2010 Jetta TDI 40 or so mpg :flippa:
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post #6 of 9 (permalink) Old 07-02-2018, 04:26 PM Thread Starter
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Re: 96 F350, 5 spd man, no pulling power

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Originally Posted by 79jasper View Post
Might have leaky up pipes.
Or a boost leak.

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Mechanic says this all tested good. I did a pressure test on the turbo as well.
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post #7 of 9 (permalink) Old 07-02-2018, 04:49 PM
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Re: 96 F350, 5 spd man, no pulling power

Do you have any gauges to watch the boost and EGT's?

It might be time for a compression test.

96 F250 XLT 4x4, 4:10 gears, 5 speed, Tymar intake and HX hose, downpipe, pyro and boost guages, coolant filter, Luc clutch
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post #8 of 9 (permalink) Old 07-02-2018, 06:01 PM
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Re: 96 F350, 5 spd man, no pulling power

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Mechanic says this all tested good. I did a pressure test on the turbo as well.
Trying not to be too blunt about it, but I don't really care what the "mechanic" says.
Feel around the up pipe connections. If your hand comes out black, you have a leak.

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1979 chevy c30 dually, sm465, 373's? Converted to 6.2 diesel, pump turned up and advanced a hair.(wrecked)
1994 ford F350 dually 4X4: 7.3 powerstroke, 5 speed. 6637, straight pipe into dual stacks. Cooper discoverer at/3's.
2010 Jetta TDI 40 or so mpg :flippa:
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post #9 of 9 (permalink) Old 07-02-2018, 09:14 PM Thread Starter
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Re: 96 F350, 5 spd man, no pulling power

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Do you have any gauges to watch the boost and EGT's?

It might be time for a compression test.
Compression test good, no gauges, coming soon.
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