What happened to 4th gear???
03-20-2009, 08:58 PM
#1
@jverderber1
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What happened to 4th gear???
I was driving home from school today when something went wrong. It seems as if my truck lost its 4th gear. Its shifts fine from 1st to 2nd and 2nd to 3rd but it wont go to 4th. It feels like it goes to neutral and when I hit the gas it revs up until it goes too high and drops back into 3rd. I have no clue about anything transmission wise and I hope I don't have to replace the entire thing. Some one told me that it could be a wire loose or something that got disconnected that told the truck to go to 4th gear. Any help would be appreciated guys I hope I can fix this, it got me really bummed out today. What should I do?
03-21-2009, 05:09 AM
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03-21-2009, 09:11 AM
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If you have any remaining time on an extended powertrain warranty then have it checked out.
Most trans shops only charge XX dollars to tear down and investigate what's wrong with a transmission. There are tons of things that can happen to your trans to cause that symptom. It could be a stuck/failing Shift Solenoid. It could be a failed TCC sensor that allowed your trans to roast the overdrive band or apply inadequate pressure and burn up the direct clutch. It could be hard wear and poor maintenance that caused you to just burn up the direct clutch.... bottom line though, it's probably the direct clutches. If so, if you keep driving on it you'll quickly lose third and second as well. Get it checked out ASAP.
EDIT: On second thought I think the direct clutch would cause a loss of 3rd/4th so it's probably the OD band getting burned up do to 1) inadequate apply pressure which could be caused by all sorts of things 2) too many WOT downshifts while in 4th gear 3) too much towing with OD enabled at speeds where it couldn't pick between 3rd/4th gear.... the reasons keep going on but you should have it checked asap. A burned up OD band or clutches release tons of little particles in your trans which allow slipping. If you drive on a failed direct clutch it will take just under a month before you lost 2nd gear and then only a couple more weeks to lose 1st. If it's just a failed OD band and you get it checked/replaced now it will be far cheaper for them to rebuild because there will be less damage to other clutches inside.
If it turns out a trans shop tells you it requires a rebuild and will cost more than $2000 you may be better off online getting a heavy duty transmission built for you and shipped then installing it yourself.
Most trans shops only charge XX dollars to tear down and investigate what's wrong with a transmission. There are tons of things that can happen to your trans to cause that symptom. It could be a stuck/failing Shift Solenoid. It could be a failed TCC sensor that allowed your trans to roast the overdrive band or apply inadequate pressure and burn up the direct clutch. It could be hard wear and poor maintenance that caused you to just burn up the direct clutch.... bottom line though, it's probably the direct clutches. If so, if you keep driving on it you'll quickly lose third and second as well. Get it checked out ASAP.
EDIT: On second thought I think the direct clutch would cause a loss of 3rd/4th so it's probably the OD band getting burned up do to 1) inadequate apply pressure which could be caused by all sorts of things 2) too many WOT downshifts while in 4th gear 3) too much towing with OD enabled at speeds where it couldn't pick between 3rd/4th gear.... the reasons keep going on but you should have it checked asap. A burned up OD band or clutches release tons of little particles in your trans which allow slipping. If you drive on a failed direct clutch it will take just under a month before you lost 2nd gear and then only a couple more weeks to lose 1st. If it's just a failed OD band and you get it checked/replaced now it will be far cheaper for them to rebuild because there will be less damage to other clutches inside.
If it turns out a trans shop tells you it requires a rebuild and will cost more than $2000 you may be better off online getting a heavy duty transmission built for you and shipped then installing it yourself.
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03-21-2009, 01:08 PM
#8
@jverderber1
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If you have any remaining time on an extended powertrain warranty then have it checked out.
Most trans shops only charge XX dollars to tear down and investigate what's wrong with a transmission. There are tons of things that can happen to your trans to cause that symptom. It could be a stuck/failing Shift Solenoid. It could be a failed TCC sensor that allowed your trans to roast the overdrive band or apply inadequate pressure and burn up the direct clutch. It could be hard wear and poor maintenance that caused you to just burn up the direct clutch.... bottom line though, it's probably the direct clutches. If so, if you keep driving on it you'll quickly lose third and second as well. Get it checked out ASAP.
EDIT: On second thought I think the direct clutch would cause a loss of 3rd/4th so it's probably the OD band getting burned up do to 1) inadequate apply pressure which could be caused by all sorts of things 2) too many WOT downshifts while in 4th gear 3) too much towing with OD enabled at speeds where it couldn't pick between 3rd/4th gear.... the reasons keep going on but you should have it checked asap. A burned up OD band or clutches release tons of little particles in your trans which allow slipping. If you drive on a failed direct clutch it will take just under a month before you lost 2nd gear and then only a couple more weeks to lose 1st. If it's just a failed OD band and you get it checked/replaced now it will be far cheaper for them to rebuild because there will be less damage to other clutches inside.
If it turns out a trans shop tells you it requires a rebuild and will cost more than $2000 you may be better off online getting a heavy duty transmission built for you and shipped then installing it yourself.
Most trans shops only charge XX dollars to tear down and investigate what's wrong with a transmission. There are tons of things that can happen to your trans to cause that symptom. It could be a stuck/failing Shift Solenoid. It could be a failed TCC sensor that allowed your trans to roast the overdrive band or apply inadequate pressure and burn up the direct clutch. It could be hard wear and poor maintenance that caused you to just burn up the direct clutch.... bottom line though, it's probably the direct clutches. If so, if you keep driving on it you'll quickly lose third and second as well. Get it checked out ASAP.
EDIT: On second thought I think the direct clutch would cause a loss of 3rd/4th so it's probably the OD band getting burned up do to 1) inadequate apply pressure which could be caused by all sorts of things 2) too many WOT downshifts while in 4th gear 3) too much towing with OD enabled at speeds where it couldn't pick between 3rd/4th gear.... the reasons keep going on but you should have it checked asap. A burned up OD band or clutches release tons of little particles in your trans which allow slipping. If you drive on a failed direct clutch it will take just under a month before you lost 2nd gear and then only a couple more weeks to lose 1st. If it's just a failed OD band and you get it checked/replaced now it will be far cheaper for them to rebuild because there will be less damage to other clutches inside.
If it turns out a trans shop tells you it requires a rebuild and will cost more than $2000 you may be better off online getting a heavy duty transmission built for you and shipped then installing it yourself.
03-26-2009, 06:55 PM
#9
@jverderber1
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Well turns out it was the O/D band and I cracked it. I didnt think you could do that. Just got it back today and it runs great. Im going to tone down my abuse on the truck to avoid this kind of thing. It only cost me $1200 for a complete rehaul with bigger clutches so it wasnt that bad. I just wish I knew more about transmissions so I can know what im talking about next time. Thanks for all the help guys
03-26-2009, 07:06 PM
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Well turns out it was the O/D band and I cracked it. I didnt think you could do that. Just got it back today and it runs great. Im going to tone down my abuse on the truck to avoid this kind of thing. It only cost me $1200 for a complete rehaul with bigger clutches so it wasnt that bad. I just wish I knew more about transmissions so I can know what im talking about next time. Thanks for all the help guys