4R100 Banger
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From: Central Ma.
4R100 Banger
I just recently bought a 2003 F250 SD 4x4 with 125K on it for cheap money. I drove it for a few days and the tranny started shifting late from first to second gear with a very loud bang. Is this the solenoid pack that is causing this to happen? It does it only from 1st to 2nd gear. The rest of the gears shift fine.
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From: Central Ma.
Originally Posted by biz4two
Has it thrown a code? You will know if the Over-drive button blinks...
biz
biz
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From: Central Ma.
One other thing that I want to mention is that this shifting problem from 1st to 2nd gear happen once before. I did notcie one or two semi hard shifts with it at about 2000 to 2200 rpm's. Then it went away and the tranny was shifting fine. Then all of a sudden it started happening again and now does it all the time. Now I just wind it out a bit and let off the gas until it shifts then step back on the gas again. This aleviates the heavy bang between 1st and 2nd gear. I was thinking that something is definitely sticking. Which leads me to the electric solenoids from what I have read here and on other truck websites.
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From: Central Ma.
Originally Posted by slopdogg250
What about your u-joints r they worn sometimes they make that knock.
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From: Central Ma.
Originally Posted by dryfly
You dont say what engine you have.If you have the diesel.The actron scanner will not retrieve thre codes.I dont know if that is true with the gassers.
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My truck was doing the exact same thing, it wouldnt shift right until I let off the gas. The bad news was it needed a rebuild. The one way clutches went and 1-2 solenoid, and it would skip 2nd gear and shift into 3rd. I only has 50k on my truck when this happened, was a 2500.00 repair, sold the truck after it was fixed.
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From: Central Ma.
Originally Posted by chromeladyracing
My truck was doing the exact same thing, it wouldnt shift right until I let off the gas. The bad news was it needed a rebuild. The one way clutches went and 1-2 solenoid, and it would skip 2nd gear and shift into 3rd. I only has 50k on my truck when this happened, was a 2500.00 repair, sold the truck after it was fixed.
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That is the problem I had, I didnt realize that it was skipping 2nd gear because it was shifting but just not like it should. The trans shop told me what it was doing and the reason why. I had no bang just the belt would squeek when it shifted. Mine did the exact same when I let off the gas as you describe.
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From: Central Ma.
Originally Posted by chromeladyracing
That is the problem I had, I didnt realize that it was skipping 2nd gear because it was shifting but just not like it should. The trans shop told me what it was doing and the reason why. I had no bang just the belt would squeek when it shifted. Mine did the exact same when I let off the gas as you describe.
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The serp. belt on the motor was squeeking when the trans shifted. Search here for the word 'diode'.....see if any of those posts are like what you are having for a problem. I hope you make you better then I did.
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From: Blairsville,Ga
Originally Posted by chromeladyracing
The serp. belt on the motor was squeeking when the trans shifted. Search here for the word 'diode'.....see if any of those posts are like what you are having for a problem. I hope you make you better then I did.
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From: Blairsville,Ga
couple things I found on E4OD which is earl version of 4R100
If second gear is begining to wear or glaze it could also cause a harsh shift. These conditions will cause slippage at the start of the shift with a hard apply at the end. This type of shift is often reffered to as a slide-bump shift.
Also you could have a problem in your transmission's accumulator body. A problem with the 1-2 accumulator could cause a harsh or delayed 1-2 shiift. A problem with the line modulator valve could also cause this, but it would usually effect more than one gear.
If second gear is begining to wear or glaze it could also cause a harsh shift. These conditions will cause slippage at the start of the shift with a hard apply at the end. This type of shift is often reffered to as a slide-bump shift.
Also you could have a problem in your transmission's accumulator body. A problem with the 1-2 accumulator could cause a harsh or delayed 1-2 shiift. A problem with the line modulator valve could also cause this, but it would usually effect more than one gear.