Need Help Identifying Stalling Problem
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New User
Joined: Apr 2009
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Need Help Identifying Stalling Problem
I have had a stalling problem ever since I bought my truck 4 years ago. After reviewing my history the owner prior (it was a lease turn in) he also had the stalling problem. The stalling use to only take place once every 3 or so months. It only stalls when coming to a stop. It violently shakes and then stalls. Hot of Cold weather, mostly hot I'm in Florida. If I accelerate during the process rapidly it won’t stall. Also if I throw it in to neutral it wont stall until I place it back in to drive. One it stalls it starts back up every time and will be fine for months.
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I have changed fuel filters, CPS multiple times but unlike suspected CPS stalls at random, it only stalls at deceleration. When the stall takes place it either doesn’t throw a code or the code is cleared when scanned at dealership. I did however get it to stall when I brought it in for transmission service in front of a technician and he said he’s not a tranny guy but it did sound like the torque converter was not releasing. I had transmission flushed with new clutches installed and this increased my stalling to about once a day. I suspected my Torque Converter not releasing so today after spending $2800 to replace my Torque Converter at the Dealership it stalled again. Can anyone think of what could be causing the stalling? Please help.
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2001 F250, 7.3 stock, automatic transmission. 67,000 miles. Awaiting to do mods when problem is solved.
<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com
fficeffice" /><o></o>I have changed fuel filters, CPS multiple times but unlike suspected CPS stalls at random, it only stalls at deceleration. When the stall takes place it either doesn’t throw a code or the code is cleared when scanned at dealership. I did however get it to stall when I brought it in for transmission service in front of a technician and he said he’s not a tranny guy but it did sound like the torque converter was not releasing. I had transmission flushed with new clutches installed and this increased my stalling to about once a day. I suspected my Torque Converter not releasing so today after spending $2800 to replace my Torque Converter at the Dealership it stalled again. Can anyone think of what could be causing the stalling? Please help.
<o
></o>2001 F250, 7.3 stock, automatic transmission. 67,000 miles. Awaiting to do mods when problem is solved.
Posting Guru
Joined: Aug 2008
Posts: 1,845
Likes: 1
From: No.Va.
Had a similiar problem a few years ago,friends 250 would "shut off" when put in gear.
Ended up replacing the trans,all was well.
But, it was not intermittent,did it all the time once it started.
Maybe the beginning for you ?
I see you did some trans work already.
Let us know what you find.
(just a thought,you said it violenlty shakes then shuts off. Kind of like a manual trans. that you don't push in the cluch at a stop?)
But it will restart immediately?
Sounds like it could still be in the trans.
Ended up replacing the trans,all was well.
But, it was not intermittent,did it all the time once it started.
Maybe the beginning for you ?
I see you did some trans work already.
Let us know what you find.
(just a thought,you said it violenlty shakes then shuts off. Kind of like a manual trans. that you don't push in the cluch at a stop?)
But it will restart immediately?
Sounds like it could still be in the trans.
Post Fiend
Joined: Sep 2006
Posts: 5,584
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From: Millbrook Alabama
Check your main wiring harness down by the shock tower on the drivers side, and where it goes over the valve cover in to the connection box. it sounds like and electrical stall that may be brought on from the motor shifting from side to side during the transfer of torque.
Elder User
Joined: May 2008
Posts: 860
Likes: 2
From: Liberty Lake, WA
A locked torque converter would certainly cause it to stall. However once your speed drops below 20mph, the truck is gonna start running very rough and probably stall the engine prior to coming to a stop. If you hook it up to a scanner, it should show when the TQ converter is locking/unlocking.
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Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
Time to start checking every inch of the wiring harness.
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New User
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Thanks for all the sugestions. This should keep me busy for the weekend. Would the electrical problem progress though with a transmission fluch and new tourque converter. It went from every three or so months to daily. Thanks again I can reconfirm more knowledge here than the "EXPERTS" at the dealership.
Hotshot
Joined: Jul 2003
Posts: 12,177
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From: Newport, WA
Thanks for all the sugestions. This should keep me busy for the weekend. Would the electrical problem progress though with a transmission fluch and new tourque converter. It went from every three or so months to daily. Thanks again I can reconfirm more knowledge here than the "EXPERTS" at the dealership.