Tranny ?
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Junior User
Joined: Feb 2010
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Tranny ?
Ok guys this is a diff one, if in overdrive from a dead stop truck will not go but if I shift it into d1 or d2 goes perfect and then after rolling shift to overdrive it works great down shifting and up shifting but when I come to a stop I have to start over. No codes no flashing od light pulled pan and has clean fluid no metal at all. I am thinking the shift position sensor may be bad but need somebody with more brain power then I have to make sure.
All help appreciated
Jim
All help appreciated
Jim
Posting Guru
Joined: Jan 2009
Posts: 1,955
Likes: 2
From: Wyoming
I am going to take a shot in the dark, but if its not the shift position sensor, then perhaps the module or connections to the module is where its having problems? Thats an interesting one! I am not an automatic guru by any stretch!
Post Fiend
Joined: Feb 2009
Posts: 8,773
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From: Texas Coast
Check for water in the MLPS or sometimes called the TRS you need to check the connection for water intrusion and air blow the pins then place a little dielectric grease around the outter edge of the seal not allowing it to go up into the contact points or pins.
If that doesnt thake care of it the MLPS may need to be replaced - but that is just a guess at this point. Try cleaning and reconnecting it and see if there is a difference.
If that doesnt thake care of it the MLPS may need to be replaced - but that is just a guess at this point. Try cleaning and reconnecting it and see if there is a difference.
Thread Starter
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Junior User
Joined: Feb 2010
Posts: 98
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Check for water in the MLPS or sometimes called the TRS you need to check the connection for water intrusion and air blow the pins then place a little dielectric grease around the outter edge of the seal not allowing it to go up into the contact points or pins.
If that doesnt thake care of it the MLPS may need to be replaced - but that is just a guess at this point. Try cleaning and reconnecting it and see if there is a difference.
If that doesnt thake care of it the MLPS may need to be replaced - but that is just a guess at this point. Try cleaning and reconnecting it and see if there is a difference.
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Post Fiend
Joined: Feb 2009
Posts: 8,773
Likes: 1
From: Texas Coast
Transmision range sensor located on the side of the tranny same as the MLPS
http://media.photobucket.com/image/m...tionSensor.jpg
http://media.photobucket.com/image/m...tionSensor.jpg
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Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,695
Likes: 2,616
From: SE Florida
It's not ANYTHING electrical. No sensor can cause this.
The overdrive one way clutch has failed. When the shifter is in 1 or 2 the coast clutch is engaged and takes the load that the one way clutch is supposed to take. The trans is going to have to come out and get rebuilt to fix this.
The overdrive one way clutch has failed. When the shifter is in 1 or 2 the coast clutch is engaged and takes the load that the one way clutch is supposed to take. The trans is going to have to come out and get rebuilt to fix this.
Post Fiend
Joined: Feb 2009
Posts: 8,773
Likes: 1
From: Texas Coast
It's not ANYTHING electrical. No sensor can cause this.
The overdrive one way clutch has failed. When the shifter is in 1 or 2 the coast clutch is engaged and takes the load that the one way clutch is supposed to take. The trans is going to have to come out and get rebuilt to fix this.
The overdrive one way clutch has failed. When the shifter is in 1 or 2 the coast clutch is engaged and takes the load that the one way clutch is supposed to take. The trans is going to have to come out and get rebuilt to fix this.
So Mark you dont think its a solenoid valve issue?
Complete E4OD High Performance T
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,695
Likes: 2,616
From: SE Florida
How could a solenoid cause that? I know how the transmission works and there is no solenoid that disengages the overdrive one way clutch. It's a mechanical device that allows rotation in one direction and holds in the other direction. When they fail they allow rotation in both directions.
Ever ride a bicycle that doesn't have foot brakes? Ever pedal backwards? That's a one way clutch allowing rotation in that direction. When you pedal forward it doesn't allow rotation, it holds, so the rear wheel rotates with the one way clutch. No solenoids involved.
Ever ride a bicycle that doesn't have foot brakes? Ever pedal backwards? That's a one way clutch allowing rotation in that direction. When you pedal forward it doesn't allow rotation, it holds, so the rear wheel rotates with the one way clutch. No solenoids involved.
Post Fiend
Joined: Feb 2009
Posts: 8,773
Likes: 1
From: Texas Coast
How could a solenoid cause that? I know how the transmission works and there is no solenoid that disengages the overdrive one way clutch. It's a mechanical device that allows rotation in one direction and holds in the other direction. When they fail they allow rotation in both directions.
Ever ride a bicycle that doesn't have foot brakes? Ever pedal backwards? That's a one way clutch allowing rotation in that direction. When you pedal forward it doesn't allow rotation, it holds, so the rear wheel rotates with the one way clutch. No solenoids involved.
Ever ride a bicycle that doesn't have foot brakes? Ever pedal backwards? That's a one way clutch allowing rotation in that direction. When you pedal forward it doesn't allow rotation, it holds, so the rear wheel rotates with the one way clutch. No solenoids involved.
Thread Starter
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Junior User
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Thanks for the info
95 250 ex cab 241xxx completely stock auto hubs rebuilt front and rear end with said tranny problem for $3500 think I can get it for 3000
He had some bad fuel or something cause I drained it and put in fresh and now it runs fine almost smelled like gas in the fuel. should I run or is that a problem.
95 250 ex cab 241xxx completely stock auto hubs rebuilt front and rear end with said tranny problem for $3500 think I can get it for 3000
He had some bad fuel or something cause I drained it and put in fresh and now it runs fine almost smelled like gas in the fuel. should I run or is that a problem.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,695
Likes: 2,616
From: SE Florida
Maybe. But I already said nothing electrical could do this, and you asked if a solenoid could do this. Solenoids are electrical.
Laughing Gas
Joined: Feb 2009
Posts: 921
Likes: 1
From: Denver CO
Thanks for the info
95 250 ex cab 241xxx completely stock auto hubs rebuilt front and rear end with said tranny problem for $3500 think I can get it for 3000
He had some bad fuel or something cause I drained it and put in fresh and now it runs fine almost smelled like gas in the fuel. should I run or is that a problem.
95 250 ex cab 241xxx completely stock auto hubs rebuilt front and rear end with said tranny problem for $3500 think I can get it for 3000
He had some bad fuel or something cause I drained it and put in fresh and now it runs fine almost smelled like gas in the fuel. should I run or is that a problem.