The Diesel Stop banner
1 - 20 of 24 Posts

·
Registered
Joined
·
8 Posts
Discussion Starter · #1 ·
Hey guys and gals, so I've done some research on this and everyone has this issue but with different symptoms than me. So this happened a while ago, but it stopped happening after a few hours. Well, now its back. My transmission temp gauge is working perfectly fine, and the only light that is on is the Tow/Haul light that keeps flashing. When putting it in Reverse or Drive, it shifts super hard and it is in a high idle. However, I can drive it with no shifting issues, although at 50 its at 2k rpm. So its staying really high. Do yall still think its the tranny temp sensor?
 

·
Registered
Joined
·
5,125 Posts
50MPH at 2,000RPM means its not shifting into high gear. I would check it for codes. Its pure speculation, but I had similar symptoms when my direct clutch failed. Its possible yours has too, but codes should point you in the right direction.
 

·
Registered
Joined
·
8 Posts
Discussion Starter · #3 ·
50MPH at 2,000RPM means its not shifting into high gear. I would check it for codes. Its pure speculation, but I had similar symptoms when my direct clutch failed. Its possible yours has too, but codes should point you in the right direction.
Yeah I was looking for codes, but my programer/tuner wasn't picking up any. Do you think I need to take it to Ford for the Diagnostic Tool?
 

·
Registered
Joined
·
5,125 Posts
It depends, some scanners can't read all the trans codes. I was able to read everything with my Edge Evo, but don't know about the others. At this point its either Ford or a trans shop, but I'd go to the one with the most experience with 6.0 trucks. It may not be internal damage, but some places would just rather sell you a trans than try to diagnose it.
 

·
Registered
Joined
·
8 Posts
Discussion Starter · #5 ·
It depends, some scanners can't read all the trans codes. I was able to read everything with my Edge Evo, but don't know about the others. At this point its either Ford or a trans shop, but I'd go to the one with the most experience with 6.0 trucks. It may not be internal damage, but some places would just rather sell you a trans than try to diagnose it.
Oh ok gotcha, well maybe this helps, I started her this morning and shifted into reverse just fine, no light, high the bump on my driveway, light flashing and now high idle ?
 

·
Super Moderator
Joined
·
12,011 Posts
That helps. It means you have codes stored and you need to get them read. Without the codes stored all I can tell you is that something is wrong. With the codes I can probably lead you right to the problem.
 

·
Registered
Joined
·
8 Posts
Discussion Starter · #7 ·
That helps. It means you have codes stored and you need to get them read. Without the codes stored all I can tell you is that something is wrong. With the codes I can probably lead you right to the problem.
Oh ok cool, do i need to go to Ford for this? Actually lol Do i have to pay for it to be checked?
 

·
Registered
Joined
·
5,125 Posts
Most auto parts stores will let you use a code scanner for free, but its a crapshoot as to whether or not it will read all the codes. But, you lose nothing by trying either.

Ford's almost certainly going to charge you, unless they get work out of it.
 

·
Super Moderator
Joined
·
12,011 Posts
Most auto parts stores will let you use a code scanner for free, but its a crapshoot as to whether or not it will read all the codes.
No, it's not a crapshoot. I guarantee that they CANNOT read the transmission codes.

You don't have to go to Ford. Any good independent shop can read the codes. Yes, you'll have to pay. How many places do work for you for free?
 

·
Registered
Joined
·
5,125 Posts
Or look at the other side of it, would you work for free?
 

·
Registered
Joined
·
8 Posts
Discussion Starter · #11 ·
No, it's not a crapshoot. I guarantee that they CANNOT read the transmission codes.

You don't have to go to Ford. Any good independent shop can read the codes. Yes, you'll have to pay. How many places do work for you for free?
Ahh ok gotcha gotcha, well I got a friend to read it for free lol But heres the codes from the read;

Transmission:

P0657 - Actuator Supply Voltage A Circuit Open
P0962 - Pressure Control Solenoid A (PCA) Control Circuit Low

Engine:

P0603 - Internal Control Module KAM Error
P2269 - Water in Fuel Condition

Now I know about the Water in Fuel lol but the rest, i have no idea rofl I found the Pressure Control Solenoid for $123 from Ford, but no idea which one it is lol and what the other Codes are.
 

·
Registered
Joined
·
5,125 Posts
I'll wait to see if Mark chimes in here, but I would not just go replacing parts based on codes. I had a trans failure that threw a code for the direct clutch solenoid. There was nothing wrong with the solenoid, the direct clutch was toast. At this point I'd want to have it diagnosed rather than start throwing parts at it.
 

·
Super Moderator
Joined
·
12,011 Posts
I'm not that familiar with the P0962 code. From the research I just did it indicates an electrical circuit fault. It could be the solenoid, but it is much more likely to be a wiring problem. It can be anywhere from the PCM to the transmission, or even the harness inside the trans.
 

·
Registered
Joined
·
8 Posts
Discussion Starter · #15 ·
I'm not that familiar with the P0962 code. From the research I just did it indicates an electrical circuit fault. It could be the solenoid, but it is much more likely to be a wiring problem. It can be anywhere from the PCM to the transmission, or even the harness inside the trans.
Yeah thats true, well, I figure I'll change the Pressure Solenoid for now since two of my acquaintances said that they had a similar issue and that was the issue. Do you happen to know which solenoid that is?
 

·
Registered
Joined
·
46 Posts
Oh ok gotcha, well maybe this helps, I started her this morning and shifted into reverse just fine, no light, high the bump on my driveway, light flashing and now high idle ��
Maybe I'm imagining this but I think you said it acted up when you hit the bump?? Thinking loose/bad connector. Nah.....too easy.
 

·
Registered
Joined
·
1 Posts
My 2004 f350 is doing the same thing. My edge reader said it was C solenoid and a OSS p0720 code. I swapped the C and E solenoid and the shifting problem changed pattern. I still had the OSS code but no solenoid code. I then replaced the bad solenoid and the OSS. The truck ran fine with no issues for about one week then started shifting hard when cold, but shifted fine after worming up. Today while driving home there was a load bang, the trans shifted hard out of OD and the tow haul light started flashing again. The only code I am getting is the P0720 OSS code again.

Not to high jack the thread but this sounds similar Any suggestions?
 

·
Super Moderator
Joined
·
12,011 Posts
My suggestion is to find and fix the wiring problem between the OSS and the PCM.
 
1 - 20 of 24 Posts
Top