Transmission acting up
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Transmission acting up
Hi guys, great site,wish I had found it about $5000 ago.
I've got a 95 F-250 PSD, E40D, 340K, 42K on new dealer rebuilt trans. Starting off it winds out real far and shifts really hard in 1st and 2nd. 3rd and 4th seem ok. Once in O/D it jumps in and out and when I slow down it still goes in out of O/D and won't shift down. I speed up in O/D or it seems to race through the gears. Now the O/D light flashes on and off unless at high speeds. Fluid and filter changed at 31K. New cam positioning sensor and speed sensor replaced about a month ago. This all happens intermitantly. I can go for a couple of weeks and it runs great. Left it at the garage and they drove it for a week and had no problems. I sure hate the thought of a new transmission. Any help would be appreciated
I've got a 95 F-250 PSD, E40D, 340K, 42K on new dealer rebuilt trans. Starting off it winds out real far and shifts really hard in 1st and 2nd. 3rd and 4th seem ok. Once in O/D it jumps in and out and when I slow down it still goes in out of O/D and won't shift down. I speed up in O/D or it seems to race through the gears. Now the O/D light flashes on and off unless at high speeds. Fluid and filter changed at 31K. New cam positioning sensor and speed sensor replaced about a month ago. This all happens intermitantly. I can go for a couple of weeks and it runs great. Left it at the garage and they drove it for a week and had no problems. I sure hate the thought of a new transmission. Any help would be appreciated
Last edited by ttmiller; Aug 24, 2007 at 12:22 PM.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,725
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From: SE Florida
Get the codes read. When the light flashes a code is stored in memory. It will stay there for about amonth after the light stops flashing. Without the code all anyone can do is guess.
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Joined: Jul 2005
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TT & Mark,
sad to say 5000bills later and you still have a problem. TT my truck is the same, less the new rebuild and I am having a simular problem. I have had the truck scaned and all that is coming up is VSS. I have replaced it twice in the last month and the problem is still there. FORD dealer states O must be your transmission is gone or something major. BULL*****
I dislike those a-holes at the dealer
sad to say 5000bills later and you still have a problem. TT my truck is the same, less the new rebuild and I am having a simular problem. I have had the truck scaned and all that is coming up is VSS. I have replaced it twice in the last month and the problem is still there. FORD dealer states O must be your transmission is gone or something major. BULL*****
I dislike those a-holes at the dealer
Post Fiend
Joined: Oct 2003
Posts: 5,903
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From: MICHIGAN
Welcome to FTE!
Is the Torque coverter locking and unlocking or shifting gears?
The intermintant part seems like electrical to me but I'm no expert. You could disconnect an clean all the connectors you find on the tranny...might help. C00nhunterjoe is our resident tranny expert in this forum he'll stop by and give you a better idea of what to do.
Check here too, it's the FTE tranny forum:
https://www.ford-trucks.com/forums/forum69/
Is the Torque coverter locking and unlocking or shifting gears?
The intermintant part seems like electrical to me but I'm no expert. You could disconnect an clean all the connectors you find on the tranny...might help. C00nhunterjoe is our resident tranny expert in this forum he'll stop by and give you a better idea of what to do.
Check here too, it's the FTE tranny forum:
https://www.ford-trucks.com/forums/forum69/
Last edited by Cuda_jim; Aug 24, 2007 at 03:45 PM.
Lead Driver
Joined: May 2007
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From: Belair md
Originally Posted by Cuda_jim
C00nhunterjoe is our resident tranny expert in this forum he'll stop by and give you a better idea of what to do.
Lead Driver
Joined: May 2007
Posts: 8,608
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From: Belair md
oh, and not neccesaraly screwed on the tc replacement part, i like to replace it whenever an overhaul is perfromed too, yeah they can be flushed but its much safer to replace it
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Thanks for the help. I had a new tourque converter put in 70 or 80K ago. I'm tired of taking this into the shop. Where might I find a decent quality code machine. Also any suggestions on a cleaner for the connectors. At least nobody said new transmission yet
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Lead Driver
Joined: May 2007
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From: Belair md
the way you described the problem doesnt sound like a tranny, drive to any advance auto or autozone and they pull codes for free or jump to the thread "NO START" and check out the scanner that fordforever just bought , it seems to have some good features, as long as you can pull codes and get pid data you will be set
while you are at advance pick up a can of electrical connector cleaner
while you are at advance pick up a can of electrical connector cleaner
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well I read the instruction manual and did the test. codes say Pass,no codes found. The machine won't give me any other information at all. It kept saying system error and not responding to any test. I did this with the engine on and off. I tested my car and got all kinds of info. Should I just take it to the dealer?