2000 F350 7.3 Won't go Over 50 mph - Ford Powerstroke Diesel Forum
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post #1 of 21 Old 04-12-2018, 08:21 PM Thread Starter
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I have a 2000 7.3 powerstroke that is sluggish with acceleration. Today I went pick up a 40 ft gooseneck and the truck was accelerating even slower. I drove about 70 miles and the truck didnt go over 55 mph even with the accelerator all the way to the floor. Going up a bridge the truck went from 55 mph to 25 mph. The motor runs fine at idle, no knock or misfire. No check engine light. Please help!!
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post #2 of 21 Old 04-13-2018, 06:36 AM
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I have a 2000 7.3 powerstroke that is sluggish with acceleration. Today I went pick up a 40 ft gooseneck and the truck was accelerating even slower. I drove about 70 miles and the truck didnt go over 55 mph even with the accelerator all the way to the floor. Going up a bridge the truck went from 55 mph to 25 mph. The motor runs fine at idle, no knock or misfire. No check engine light. Please help!!
check that your getting boost. if you have a boost leak for a boost sensor leak the MAP will not let your truck fuel properly. if it doesn't see boost. you don't get fuel.

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post #3 of 21 Old 04-13-2018, 06:44 AM Thread Starter
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When you say check the boost. How exactly can I check the Boost?
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post #4 of 21 Old 04-13-2018, 06:50 AM
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When you say check the boost. How exactly can I check the Boost?
Well, either with an actual boost gauge(usually how you create the leak) or by using an OBD2 gauge.
You can get the "Torque" app and monitor things through there just as long as you buy the Bluetooth OBD2 thinger. Do you have a freind that you can borrow a Edge, or an SCT from and monitor you boost?

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post #5 of 21 Old 04-13-2018, 06:52 AM Thread Starter
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No. Would a regular obd2 scan tool work the same?
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post #6 of 21 Old 04-13-2018, 06:52 AM
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Also, here is the link to a bluethooth OBD "scanner"

https://bafxpro.com/products/obdreader

Then, you will need the Torque app, it costs 10 bucks on the app store but if it'll help you get over 55MPH, kinda worth it.LOL

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post #7 of 21 Old 04-13-2018, 06:53 AM
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No. Would a regular obd2 scan tool work the same?
Sadly, no, they can't monitor real time gauges or parameters like boost, all they do is read a code

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post #8 of 21 Old 04-13-2018, 06:55 AM Thread Starter
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So the scanner that you sent me in the link and the app is the only to things that i would need?
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post #9 of 21 Old 04-13-2018, 06:59 AM
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So the scanner that you sent me in the link and the app is the only to things that i would need?
Yup, should be about $30 total. Watch some YouTube videos on how they work so you know and then if it seems doable,

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post #10 of 21 Old 04-13-2018, 07:02 AM Thread Starter
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Thanks man I really appreciate it, so that's the only problem you think it could be?
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