Sticking in OD? ('03 5.4L FX4)
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From: Bama
Sticking in OD? ('03 5.4L FX4)
Truck has 117K on it. I've only had it for a few months & since I got it this has happened 3 times. It feels like it's sticking in OD. When I'm at a cruising speed and slow down, then try to speed back up it lugs, just like a manual trans would if you left it in 4th or 5th and didnt down shift before trying to speed back up. When it happened I let of the gas, put my foot back in it a little & she shook a bit then down shifted & was fine...
The trans fluid appeared to be nice and clean when I checked it after purchasing the truck, so I dont think the issue would be resolved with a flush, however I could be wrong.
We had an early 90's model car that did the same thing when I was younger, just had to change out the little computer that tells the trans when to shift...
Think that could be my problem?
Thanks, JD (PS I did a little search and could only come up with something similar for an 04, but the cause was faulty parts in the trans, so I dont think that applies here)
The trans fluid appeared to be nice and clean when I checked it after purchasing the truck, so I dont think the issue would be resolved with a flush, however I could be wrong.
We had an early 90's model car that did the same thing when I was younger, just had to change out the little computer that tells the trans when to shift...
Think that could be my problem?
Thanks, JD (PS I did a little search and could only come up with something similar for an 04, but the cause was faulty parts in the trans, so I dont think that applies here)
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From: Beaverton Or.
I think you have a lowgrade misfire.....
You described it perfectly really. That shutter and no shift response out of OD with a bit of bucking is a low grade misfire. There is however, what I have found to be common on all 3 of the F series I've owned, a bit of a sluggish area as you have described. Once it is in over drive at speeds about 45-50... if you let off and slow down to about 40-42 and eeaase into the pedal, it would lug a bit before it shifts out of over drive. I have found that instead of easing into it and waiting for the pcm or whatever to decide to shift out, rather giving it a quick tap (not full throttle) just a quick tap and it shifts out smooth with no void. But I believe what you are describing is a low grade misfire.
You described it perfectly really. That shutter and no shift response out of OD with a bit of bucking is a low grade misfire. There is however, what I have found to be common on all 3 of the F series I've owned, a bit of a sluggish area as you have described. Once it is in over drive at speeds about 45-50... if you let off and slow down to about 40-42 and eeaase into the pedal, it would lug a bit before it shifts out of over drive. I have found that instead of easing into it and waiting for the pcm or whatever to decide to shift out, rather giving it a quick tap (not full throttle) just a quick tap and it shifts out smooth with no void. But I believe what you are describing is a low grade misfire.
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From: Bama
Thats about the exact speed it happens at every time. The limit on the road away from work is 45 so I'm usually going ~50 and had to slow down for someone turning yesterday when it happened...
Exact same scenario and speed as the first time it happened.
I dont think it's a miss-fire, my 97 use to miss-fire a good bit on me and this is different.
Exact same scenario and speed as the first time it happened.
I dont think it's a miss-fire, my 97 use to miss-fire a good bit on me and this is different.