Transmission problem?? Help needes
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Transmission problem?? Help needes
I just got a 1991 f250 diesel 2wd. It has the e40d transmission in it. It has only 91000 original miles on it.
Well when I went and got it, it drove good for about 80 miles then I was cruising at like 70 on the interstate and all of the sudden the Rpms went up and the speed went down. The gear didn't catch again until about 50mph.
Now SOMETIMES when we get in I get hard shifts and it acts like it doesn't want to shift or wants to go back and forth. But then sometimes it's really smooth shifting. It had started doing that so we changed the trans fluid and there was no big metal flakes in the pan or anything like that. Added the oil back and added Lucas anti slip stuff.
But it still does it only sometimes.
Off of those details can anyone tell if the trans is bad or if it may be the solenoid pack inside the trans that is going bad. Or am I way off?
I also went and talked to a transmission shop and they actually said it sounded more like the TPS than anything else.
Any help would be appreciated
Well when I went and got it, it drove good for about 80 miles then I was cruising at like 70 on the interstate and all of the sudden the Rpms went up and the speed went down. The gear didn't catch again until about 50mph.
Now SOMETIMES when we get in I get hard shifts and it acts like it doesn't want to shift or wants to go back and forth. But then sometimes it's really smooth shifting. It had started doing that so we changed the trans fluid and there was no big metal flakes in the pan or anything like that. Added the oil back and added Lucas anti slip stuff.
But it still does it only sometimes.
Off of those details can anyone tell if the trans is bad or if it may be the solenoid pack inside the trans that is going bad. Or am I way off?
I also went and talked to a transmission shop and they actually said it sounded more like the TPS than anything else.
Any help would be appreciated
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,732
Likes: 2,659
From: SE Florida
I think you're way off.
My guess is that the MLPS (Manual Lever Position Sensor,) also called the TRS (Transmission Range Sensor,) and even NSS (Neutral Safety Switch.) It's located on the driver's side of the transmission. It is very, very hard to diagnose this problem. I recommend changing the sensor.
My guess is that the MLPS (Manual Lever Position Sensor,) also called the TRS (Transmission Range Sensor,) and even NSS (Neutral Safety Switch.) It's located on the driver's side of the transmission. It is very, very hard to diagnose this problem. I recommend changing the sensor.
Thread Starter
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New User
Joined: Aug 2016
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I think you're way off.
My guess is that the MLPS (Manual Lever Position Sensor,) also called the TRS (Transmission Range Sensor,) and even NSS (Neutral Safety Switch.) It's located on the driver's side of the transmission. It is very, very hard to diagnose this problem. I recommend changing the sensor.
My guess is that the MLPS (Manual Lever Position Sensor,) also called the TRS (Transmission Range Sensor,) and even NSS (Neutral Safety Switch.) It's located on the driver's side of the transmission. It is very, very hard to diagnose this problem. I recommend changing the sensor.
I've also read it could be the trs I'll give it a shot. Gonna put the TPS in soon since I have it . Maybe it will work
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