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Power Strokes 1994-1997 General Technical discussion of topics related to vehicles powered by the Power Stroke engine in 1994 through 1997 models.

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Old 05-08-2009, 01:28 PM   #1 (permalink)
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97 F250 Running Rough

I have a 97' F250 7.3L Powerstroke Turbo Diesel with 321k Miles on it. At times the truck will seem to run fine with the exception of it sounding like its missing on 1 piston. It has been like that for a while. Recently, the truck started running rougher with the transmission shifting prematurely and acting like it has lost power. Now this is not constant it will shift back to running fine but when it has it problem, it is really random when it happens. Now a little after the transmission starts shifting prematurely, the check engine light will come on and sometimes stay on or maybe just go on and off a couple of times. When the check engine light comes on, the transmission shifts really hard and acts like its fixing to rip out the transmission. Basically it seems like it loses power. I'm guessing it is the injectors but I don't want to spend the $300 a piece unless I'm sure thats what it is.
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Old 05-08-2009, 02:15 PM   #2 (permalink)
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Did you pull any codes? Sounds like the PCM is on its way out? Not sure though. Have someone check for codes to start. I don't think bad injectors would make the tranny shift like that.
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Old 05-08-2009, 05:58 PM   #3 (permalink)
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Get the code read .....
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Old 05-08-2009, 06:03 PM   #4 (permalink)
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I think it is fuel related. Only when the Check Engine light is on does the transmission shift hard and the overdrive off light blinks. It really seems like it doesn't have any power. Like I said it is extremely random when it happens and how long it lasts. As far as codes go, I don't have a code reader nor do I know someone who has a reader and I do not have the money to get a code reader.
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Old 05-08-2009, 06:21 PM   #5 (permalink)
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Quote:
Originally Posted by cbassett1 View Post
I think it is fuel related. Only when the Check Engine light is on does the transmission shift hard and the overdrive off light blinks. It really seems like it doesn't have any power. Like I said it is extremely random when it happens and how long it lasts. As far as codes go, I don't have a code reader nor do I know someone who has a reader and I do not have the money to get a code reader.
The code will save a great deal of guessing ,,,take it to ford ,,get the code ...
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Old 05-12-2009, 10:33 PM   #6 (permalink)
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Ford charges you don't they? I need to spend absolutely as little as possible. Anything that I can DIY I will.
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Old 05-14-2009, 08:41 AM   #7 (permalink)
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So you would rather just throw parts at it and see if one gets it right? Are you getting free parts or something?
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Old 05-15-2009, 12:32 AM   #8 (permalink)
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No its just that it isn't exactly easy to pull the codes. Reason being is because I never know when the light is gonna come on and how long its gonna stay on. With my luck, it would come on right next to a Ford dealership and the second I pull it up to service, the light would go off.
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Old 05-15-2009, 02:45 AM   #9 (permalink)
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if the lights coming on it most likely stored a code already.
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Old 05-15-2009, 09:24 AM   #10 (permalink)
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No its just that it isn't exactly easy to pull the codes. Reason being is because I never know when the light is gonna come on and how long its gonna stay on. With my luck, it would come on right next to a Ford dealership and the second I pull it up to service, the light would go off.

You can buy a code reader for yourself.

The problem is that anything that you are told without getting a code is just a guess. Your money is best spent getting a code and then getting advice. I agree that it is probably a stored code.
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Old 05-15-2009, 07:41 PM   #11 (permalink)
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So you would rather just throw parts at it and see if one gets it right? Are you getting free parts or something?
Kinda harsh response, considering the question was more along the lines of is there any way to avoid getting price-raped by ford, and trying to save a dollar or two, and in NO way implying throwing parts at the truck.

cbassett1,
The reason it's not a bad idea to go to Ford when the code pops up, is, we're not 100% OBD-2 compliant on our trucks.. We have the connector, BUT, to get the real readings you need a code reader that is up to par with that ROTUNDA version that the stealerships use, that has multiple software packages designed for specific vehicles. For what its worth on our trucks, it CAN be cheaper to get it read at ford, depending one 1 specific thing...

Auto Enginuity has a USB powered OBD2 package that hooks up to your computer for about $250, and then for another hundred bucks or so, you can get the additional software for the PSD that will let you do all of the cool things the stealership can do, like the injector BUZZ test and so on....

If you intend on having this truck for the LONG HAUL, an Auto Enginuity unit wouldnt be a bad spend, BUT, if you don't intend on wrenching on this pickup much, or will be trading up anytime soon, the A.E. package may not be for you, and you could save money going to ford.

Long story boring, the standard $40 obd2 reader isnt going to get you very far on our trucks, so it's up to you to weigh what is going to be better for you...

And by the way, don't let any of the sarcastic replies on this forum keep you from posting or asking questions. For every 1 guy who thinks it's cool to try and make you sound stupid on this forum, there's another 4 guys who will save you an "arm and a leg" in mechanics fees, and tach you A TON about the T444E(7.3l powerstroke) along the way.

Best of luck brother. Let us know how it comes out.

Joe
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