Need some help figuring this out - Diesel Forum - TheDieselStop.com
6.0L Power Stroke Engine and Drivetrain Discussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.

 
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post #1 of 11 (permalink) Old 11-03-2019, 05:55 PM Thread Starter
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Need some help figuring this out

I drove down to my girlfriend’s house last night, and my truck started acting up about five miles from her house. I just had the AC compressor replaced (it had seized up). I got it back on the 23rd, and had only put about 100 miles on it until last night. Aside from the shop forgetting to tighten down a couple of the turbo clamps on the pipe going to the inter cooler (which popped off and sounded like a shotgun, scaring the crap out of my kids and myself), everything seemed fine. The truck ran great, lots of power (as always), shifted perfect. i drove it to work several times and never had an issue.
Then, I drove it to her house (3-1/2 hours away). I got off the highway a few miles from her house so I could fuel up for the trip back tomorrow morning. When I pulled off the highway and gave it throttle, as it shifted it was slamming into gear. I BELIEVE it was from second to third, but I wasn’t paying that much attention until it started acting up. It did this all the way to the gas station, then all the way to her house. It seemed as though it was a lot better over 50. Not sure if that means anything or not.
I did do some searching and found the “5r110 Shift Relearning Strategy”, and I’m getting ready to go try that, since before the compressor replacement, I had unhooked both batteries and didn’t have a KAM battery (just found out about it when I was searching for my issue). I’m hoping that solves it, but is there any other issue that could cause this? I figured I’d ask now so I might have some ideas when I get back in from messing with the truck. I haven’t even put 2,500 miles on this truck since I bought it back in February, and I’m starting to think it hates me.
As of right now, I’ve done the relearning procedure, and it seems to have worked somewhat. However, I don’t have overdrive, the truck is stumbling horribly and when I went to back up a little bit ago, the throttle decided it didn’t want to respond for a couple minutes and the injectors clattered a lot louder than usual. Then it took about 4-5 minutes to get from 0-30, then at 30, it finally started running correctly.
The truck isn’t tuned, it’s stock. Since I’ve had it, it’s never overheated or even went over halfway on the engine temp, and always slightly under half on the trans temp. It’s not throwing any codes at all (no engine light).
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post #2 of 11 (permalink) Old 11-06-2019, 06:50 PM
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Not sure I understand your issue. Is it that the tranny shifts into gear very roughly and you have bad throttle response at low RPM'S?
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post #3 of 11 (permalink) Old 11-07-2019, 01:23 AM Thread Starter
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Both are an issue for me. I have no idea what could’ve happened, since the truck ran perfectly for the entire trip, until I pulled off the highway. Then out of nowhere, it wasn’t acting right.
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post #4 of 11 (permalink) Old 11-08-2019, 07:37 AM
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Before we can really assist you with the problem, you'll need to post some engine diagnostic data. It would help to know what your ICP, IPR, FICM SYNC, ICP Volts, etc... values are.

Do you have a monitoring tool? If not, i recommend the Forscan Lite App that you can download to your phone. You'll need to purchase a wireless OBD2 adapted to go with it. The app is $5 and the wireless adapter can be purchased for $25 - $30.
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post #5 of 11 (permalink) Old 11-09-2019, 07:42 AM Thread Starter
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I do have one, I just didn’t have it with me, as I was down visiting my girlfriend. Right now the truck is still sitting at her house, and I won’t be able to make it down there until the 16th.

I have an ELM327 Bluetooth scanner, and I’ve purchased OBD Fusion and Auto Doctor, but haven’t messed with them much. Do either of those show the values, or will I need to purchase Forscan Lite?

Rick
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post #6 of 11 (permalink) Old 11-09-2019, 07:44 AM Thread Starter
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Just realized I misread your previous question. It only seems to be slamming into second and third, not every gear. And overdrive won’t engage.
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post #7 of 11 (permalink) Old 11-09-2019, 07:50 AM
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You will need to read the codes to see what's ailing the transmission. I don't know if what you have will work. The ELM327 adapter will work with the free version of Forscan, available at www.forscan.org. That will read the codes.

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post #8 of 11 (permalink) Old 11-10-2019, 08:37 AM
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Quote:
Originally Posted by corder1979 View Post
I do have one, I just didn’t have it with me, as I was down visiting my girlfriend. Right now the truck is still sitting at her house, and I won’t be able to make it down there until the 16th.

I have an ELM327 Bluetooth scanner, and I’ve purchased OBD Fusion and Auto Doctor, but haven’t messed with them much. Do either of those show the values, or will I need to purchase Forscan Lite?

Rick
ForScan Lite as recommended.

Mark
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post #9 of 11 (permalink) Old 11-10-2019, 01:36 PM Thread Starter
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Ok, so I was able to get back to where the truck is last night. I downloaded Forscan, but I’m unable to get it to connect to my iPhone. I did have OBDFusion and Auto Doctor already downloaded and was able to connect them. Neither one showed any stored codes.
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post #10 of 11 (permalink) Old 11-10-2019, 02:16 PM Thread Starter
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Here are the screenshots I took while using the OBDFusion and Auto Doctor apps. Shouldn’t my battery voltage be higher than 13.4 volts when running? I remember I had a 97 Cadillac that the tranny slammed into gear when the alternator started to go out because it was all electronically controlled. Is that the same case with my truck? Or am I way off base here?

Rick
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post #11 of 11 (permalink) Old 11-10-2019, 02:18 PM Thread Starter
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Ran out of room for the screenshots.
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