Hard Shift
Thread Starter
|
Elder User
Joined: Sep 2012
Posts: 611
Likes: 0
From: Smokey Mountains TN
Hard Shift
My Transmission started to shift really hard in almost all gears.
No code on OD Light.I will replace it for a manual soon, but in the meantime, i still need to drive the truck.
I did noticed, that i do not have the power anymore like i used too. when i press the pedal hard, sometimes she smokes like hell, shifts good and runs fast and the all the sudden, not enough power and she shifts hard.
No codes and the filters are good. All level are good and the Tranny Fluid is clean.
Any suggestions? fuel pressure is steady at 60
No code on OD Light.I will replace it for a manual soon, but in the meantime, i still need to drive the truck.
I did noticed, that i do not have the power anymore like i used too. when i press the pedal hard, sometimes she smokes like hell, shifts good and runs fast and the all the sudden, not enough power and she shifts hard.
No codes and the filters are good. All level are good and the Tranny Fluid is clean.
Any suggestions? fuel pressure is steady at 60
Thread Starter
|
Elder User
Joined: Sep 2012
Posts: 611
Likes: 0
From: Smokey Mountains TN
well, not sure though , as i do not have a scanner. But i do know, sometimes she shifts good and runs good, and then it feels like i lost some power and she shifts bad.. then she runs good and shifts bad or runs bad and shifts good.. its wicked.
this morning she was shifting hard, i switched to the rear tank and it shifted fine for a little while...
this morning she was shifting hard, i switched to the rear tank and it shifted fine for a little while...
Fleet Mechanic
Joined: May 2011
Posts: 1,414
Likes: 10
From: Thornhill , Ontario
Ok...you need to get it scanned at a Transmission shop...My bet is the 1746 code or the 1747 code....the latter involved cleaning the wiring connections and the former was a $ 700 part only vibe ( Ford ) for the solenoid Pack....it was the EPC solenoid which is part of the solenoid pack assembly and it controls Line pressure....
PM Mark K.
He is a Ford Trans Engineer......if you don't believe me .......he helped me tremendously
PM Mark K.
He is a Ford Trans Engineer......if you don't believe me .......he helped me tremendously
Thread Starter
|
Elder User
Joined: Sep 2012
Posts: 611
Likes: 0
From: Smokey Mountains TN
I see if might can get it scanned . Would the a& softwAre be able to read it ? It appears that I have somehow a relationship between the way the engine runs and the shifting.
Fleet Mechanic
Joined: May 2011
Posts: 1,414
Likes: 10
From: Thornhill , Ontario
No that is a dream......there is no relationship that you speak of.....get it scanned ASAP...otherwise it will cost you ALOT of Money....trust me ....that is why I have a Diagnostic Scanner.....
Thread Starter
|
Elder User
Joined: Sep 2012
Posts: 611
Likes: 0
From: Smokey Mountains TN
is there a way of manually pulling out the code? without a scanner?
I would have thought , that there is some sort, maybe not direct, relationship between the engine and the tranny, as it shifts rough mainly when the engine runs rough. Could it also be a TPS or a speed sensor?
Just wonder
I would have thought , that there is some sort, maybe not direct, relationship between the engine and the tranny, as it shifts rough mainly when the engine runs rough. Could it also be a TPS or a speed sensor?
Just wonder
Trending Topics
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,695
Likes: 2,616
From: SE Florida
No codes, or you haven't looked for codes, so you are assuming there are no codes? Don't you know what assuming does?
I disagree. I think there is a direct relationship. In fact, I'll bet one this is solved the cause will be something wrong with the engine, not the transmission.
No there is not. You must have the correct scan tool to read the codes.
No there is not. You must have the correct scan tool to read the codes.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Thread Starter
|
Elder User
Joined: Sep 2012
Posts: 611
Likes: 0
From: Smokey Mountains TN
Well , I know what assume means. :-) I should have been more specific though . I do not have the check engine light on nor is my of light flashing . I do not know if I have any discrete codes. And unfortunately a guy I used to know who had a& e scanner moved away. Well . Was just wondering if there is anything I can look at , that might cause the constant variation in power . Like I said before , she runs good and then all of the sudden she runs rough and shift tough .
Fleet Mechanic
Joined: May 2011
Posts: 1,414
Likes: 10
From: Thornhill , Ontario
Ok what shape are your UVC harnesses in ? See my engines ALWAYS run to spec...I'm sorry if I left that out before..and I do have a Diagnostic scanner... That is why I said it was Dream earlier.....If you have Harness Issues / Injector Poppet valve issues it can run strange / Intermittently as you described...and the CMP sensor can also do Funky stuff....
Thread Starter
|
Elder User
Joined: Sep 2012
Posts: 611
Likes: 0
From: Smokey Mountains TN
uvch is new, so are all pictails on the engine harness,
cam sensor is new, shift sensor on transmission is new, ips is new.
fuel bowl deleted, ipr cleaned 6 month ago.
injector o-rings changed 8 month ago. Only thing i know us, that the injector are wore out and at least one does not fire right away when ii start the truck.. seems sticky.. i have to give it a hard push on the throttle for all injectors to kick in ..once warm, engine always runs a little rough.
I will change injectors , downpipe, intake,fuel pump, and the tranny in about 5 weeks.. but till then i need to be able to drive the truck though
cam sensor is new, shift sensor on transmission is new, ips is new.
fuel bowl deleted, ipr cleaned 6 month ago.
injector o-rings changed 8 month ago. Only thing i know us, that the injector are wore out and at least one does not fire right away when ii start the truck.. seems sticky.. i have to give it a hard push on the throttle for all injectors to kick in ..once warm, engine always runs a little rough.
I will change injectors , downpipe, intake,fuel pump, and the tranny in about 5 weeks.. but till then i need to be able to drive the truck though
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,695
Likes: 2,616
From: SE Florida
There are two ways to diagnose this. One way is to get the codes read to see if the computer can point you in the right direction. The second way is to buy parts and install them until you happen upon the problem. Do you want a list of everything on the truck that might cause this problem? How deep are your pockets? This will get VERY expensive!
Thread Starter
|
Elder User
Joined: Sep 2012
Posts: 611
Likes: 0
From: Smokey Mountains TN
ok.. i went to two different places, one had a more advance snap on scanner. neither place could find a code.. Looks like i got to use the third way... start on my conversion sooner than planed 
Unless i find out whats wrong... btw driving to both places, the truck shifted fine
Unless i find out whats wrong... btw driving to both places, the truck shifted fine