DISADVANTAGES, BREAKDOWNS AND PROBLEMS OF JATCO RE4F03B One of the most reliable in the class, the machine is only afraid of grease contamination Clutch wear products are carried throughout the system, clogging the solenoids Shocks, jerks, and vibrations break the seals and cause oil leaks As a result of oil starvation, the planetary gear is quickly destroyed.
Hi Gary, first of all thank You for such good videos. Really great job You're doing out there. I've 2003 nissan maxima QX with RE4F04B transmission. I'm experiencing no "kickdown" issue. When I push hard the accelerate pedal it starts to accelerate but it doesn't reduce the gear. Could You explain to me how the "kickdown" feature works? What could be wrong? It happens really often but not always. Thank You in advance
Good morning Gary , Thanks for this video ,I just overhauled a one of these from a Nissan X-trail 2002 with the planetary gear worn out .But after remounting on the car I have no 4th and reverse gear engagement can you please help me out . Thanks
Hey got a late reverse sometimes, the car would drive great for 3 days, then one day if I put it in reverse the car would rev for 6 seconds then engage, then work for 2 more days and comes back(hot or cold) works great, it's really intermittent, I am think valve body, like a check ball sticking in the separator plate, I know seals dont heal and leak so if it's bad it would always happen. Or when cold or hot if it was the seal when cold it would of have a no reverse then when it warms up it would work, so I am looking at a valve body problem, any assistance would be great
Thanks, Gary. Tomorrow I will tear down a RE4FO3W just for learning. Not putting it back together. This tranny had very slow engagement into reverse, and a slight flare on the 2-3 upshift. I expect to find worn clutches but I want to be sure what I'm looking at. Your comment about the high drum was that it's both 3rd and 4th. Does the direct drum only house 1st and 2nd? I couldn't find the info anywhere. Thanks, D.
Hey Garry....my RE4F30B is stuck in a high gear and giving PO734 code....just replace the transmission the previous one didn't go in reverse. Any ideas?
Hi, first of all thanks for the detailed video. I use this transmission system in my Nissan Almera 1.8 2000 vehicle. There is a strange problem and can you help diagnose it? It's like this: When switching from 1st to 2nd gear, there is a situation like the car is holding and releasing something. What possibilities should this bring to mind?
@@GaryFerraro More pronounced when cold. It can also be felt at normal operating temperature. Lighter in shift from 2nd to 3rd gear. Everything is normal in downshifts. The vehicle is at 190.000 Km. I use Valvoline ATF as transmission oil. I did the oil change. Probably the filter installed by the factory is still in the transmission! Could it be related to the slow operation of one or both solenoid valves? I'm trying to figure out what is the source of the problem. Tranmission mechatronics? Deeper mechanical components? I really wonder what your valuable experiences will say. Thanks.
Ok, this is what it says in my book. The planetary carrier(inner race for the sprag) must freewheel clockwise and lock counter clockwise when holding the low one way roller clutch. If there is any confusion let me know, i will give you my e-mail and you can send me a picture, i can tell you if its correct
Hi Gary, i have a 2005 nissan sentra, im asking if i can use parts of the 2001 model on my 2005, my trans makes hard shift from 1st to 2nd gear and late shift from 2nd to 3rd (revs up before shift into next gear, its like a neutral before aply 3rd gear and then aply. it do it all the time, cold or hot. the oil its in the level. please help me, no codes, no ligth in the dash, dont know where to start looking at, was thinking in clogged selenoids. thanks for your videos, they are very helpfull, it always good to have good people with good experience to learn of them!!!
do you have a cable to adjust pressure? sounds like there may be 2 problems, the late shift and a flared shift. See if there are any cables other than the shift cable
Hi, thanks for answer me, if you are talking about an overdrive cable, no, it dont have overdrive cable, it is electric throttle body and just have the shift selector cable
@@GaryFerraro hey gary i got a re4f03b transmission my problem is the pump went broke do i need to rebuild the transmission or can i just replace the pump.
I have a 2000 Nissan primera i think it's a G20 infiniti in the USA. I'm not getting reverse r its moving slow and no power up slight hill road, I pull down the transmission need your help on solving my transmission problem
@@LuisSanchez-jq9sy Well you certainly have a pressure loss, you probably have a problem with the seals for the reverse input drum. Can you put your shifter down to manual low? if so how is that?
@@LuisSanchez-jq9sy I would not use any stop leak in a transmission, it swells the seals including the pistons seals, when the seals swell up, the piston seal pop out as the clutch is applied and when the piston returns the seal will tear, seen that a few times
@@GaryFerraro I have taken the first snapring, yet the sprag assembly does not come out. I almost have everything out the transmission except sprag assembly ( and the clutches behind it). Can it be stuck in anyway? because the transmission have little broken peices. if yes, what can I try in addition? Appreciate your response.
I saw your youtube video on the re4f03a and was in need of some help regarding the transmission, i own a 2005 nissan teana j31 that comes with the same transmission, my transmission broke down and at the moment im not sure what the problem with it is. Really need an expert, check your email please
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DISADVANTAGES, BREAKDOWNS AND PROBLEMS OF JATCO RE4F03B
One of the most reliable in the class, the machine is only afraid of grease contamination
Clutch wear products are carried throughout the system, clogging the solenoids
Shocks, jerks, and vibrations break the seals and cause oil leaks
As a result of oil starvation, the planetary gear is quickly destroyed.
thanks for posting these Gary, I really enjoy them 🙏
Steven Akn1 thanks for watching. Please subscribe
Gary Ferraro oh yeah long time subscriber already
Steven Akn1 thank you Have a great 4th
with the NISSAN service manual from NICOclub, this video and two other videos, i honestly believe i could rebuild this now.
Hi Gary, first of all thank You for such good videos. Really great job You're doing out there. I've 2003 nissan maxima QX with RE4F04B transmission. I'm experiencing no "kickdown" issue. When I push hard the accelerate pedal it starts to accelerate but it doesn't reduce the gear. Could You explain to me how the "kickdown" feature works? What could be wrong? It happens really often but not always. Thank You in advance
Great job Gary.
Thank you and thanks for watching
Good morning Gary ,
Thanks for this video ,I just overhauled a one of these from a Nissan X-trail 2002 with the planetary gear worn out .But after remounting on the car I have no 4th and reverse gear engagement can you please help me out .
Thanks
good morning man you doing A great job professional way
Thank you sir. Thanks for watching
Great job great vid
muy buenos vídeos amigo gracias por compartir tus conocimientos felicidades
@gary ferraro do i need to rebuild the whole transmiaaion if my pump broke or can i just replace the pump nd be done
Nice.! I love this chanel .!
john CR thanks john. Have a safe 4th
Hey got a late reverse sometimes, the car would drive great for 3 days, then one day if I put it in reverse the car would rev for 6 seconds then engage, then work for 2 more days and comes back(hot or cold) works great, it's really intermittent, I am think valve body, like a check ball sticking in the separator plate, I know seals dont heal and leak so if it's bad it would always happen. Or when cold or hot if it was the seal when cold it would of have a no reverse then when it warms up it would work, so I am looking at a valve body problem, any assistance would be great
so the only difference with the RL and RE model is that one uses a governor and the other uses solenoids to shift ?
Thanks, Gary. Tomorrow I will tear down a RE4FO3W just for learning. Not putting it back together. This tranny had very slow engagement into reverse, and a slight flare on the 2-3 upshift. I expect to find worn clutches but I want to be sure what I'm looking at. Your comment about the high drum was that it's both 3rd and 4th. Does the direct drum only house 1st and 2nd? I couldn't find the info anywhere. Thanks, D.
Direct rum is 3rd and 4th. There is a low clutch drum for 1st and a band for 2nd
what clutches are in the high drum?
The high drum has the 3rd clutch. That clutch comes on in 3rd and stays on for 4th
Wow; reverse frictions were worn, but there was absolutely NO friction material on any of the 3rd gear clutches. Metal-to-metal with the steels.
that's common, the inner seal shrinks when the trans gets hot and looses pressure, usually burns the clutch pack
Hey Garry....my RE4F30B is stuck in a high gear and giving PO734 code....just replace the transmission the previous one didn't go in reverse. Any ideas?
P0734 means gear ratio error in 4th, if you drive the car what happens on the 3-4 shift?
Hi,
first of all thanks for the detailed video.
I use this transmission system in my Nissan Almera 1.8 2000 vehicle.
There is a strange problem and can you help diagnose it?
It's like this: When switching from 1st to 2nd gear, there is a situation like the car is holding and releasing something.
What possibilities should this bring to mind?
Happens all the time or only hot?
@@GaryFerraro More pronounced when cold. It can also be felt at normal operating temperature.
Lighter in shift from 2nd to 3rd gear. Everything is normal in downshifts.
The vehicle is at 190.000 Km. I use Valvoline ATF as transmission oil. I did the oil change. Probably the filter installed by the factory is still in the transmission!
Could it be related to the slow operation of one or both solenoid valves? I'm trying to figure out what is the source of the problem. Tranmission mechatronics? Deeper mechanical components?
I really wonder what your valuable experiences will say. Thanks.
@@solosolo8932 Could be solenoids or a seal problem, sounds like it binding up on the shift
@@GaryFerraro Same trouble on Nissan Sunny N16 1.6. From 1st to 2nd gear to cold later (with a little push) shifting.
Is this a cvt type transmission? Or the normal atf? What oil btw
Not a CVT, Regular Dextron oil is fine
НА каких машинах дифференциалов JATCO RE4F03B стоят шарикоые подшибники?
hello gary which way does the low sprag rotated in this unit?
Ok, this is what it says in my book. The planetary carrier(inner race for the sprag) must freewheel clockwise and lock counter clockwise when holding the low one way roller clutch. If there is any confusion let me know, i will give you my e-mail and you can send me a picture, i can tell you if its correct
thanks... i got it...
ok, sounds good
Transmission type? Is it CVT or ATF fluid type should be put.?
This trans is not a CVT, Regular ATF on this unit
@@GaryFerrarothanks for clearing up for the the type of fluid as my dealer said is a cvt ad takes ns3😢
no, not this unit@@spawntohell
Where is the output speed sensor?
Grasias amigo yo arme una pero no tengo reversa
Hi Gary, i have a 2005 nissan sentra, im asking if i can use parts of the 2001 model on my 2005, my trans makes hard shift from 1st to 2nd gear and late shift from 2nd to 3rd (revs up before shift into next gear, its like a neutral before aply 3rd gear and then aply. it do it all the time, cold or hot. the oil its in the level. please help me, no codes, no ligth in the dash, dont know where to start looking at, was thinking in clogged selenoids. thanks for your videos, they are very helpfull, it always good to have good people with good experience to learn of them!!!
do you have a cable to adjust pressure? sounds like there may be 2 problems, the late shift and a flared shift. See if there are any cables other than the shift cable
Hi, thanks for answer me, if you are talking about an overdrive cable, no, it dont have overdrive cable, it is electric throttle body and just have the shift selector cable
How are your down shifts? seems like there is high pressure. Was anything done to the car then this problem started?
down shift perfect, the problem is up shift, nothing done to the car
@@GaryFerraro hey gary i got a re4f03b transmission my problem is the pump went broke do i need to rebuild the transmission or can i just replace the pump.
Has he done a video for rebuilding a 97 nissan maxima transmission?
I have not, sorry
what repair kit did you use for this?
overhaul kit is TransTec
Que tipo de aceite para esta caja
Hi how come u did not post a rebuild vid on RE4F03B
Sorry about that, very hard to film rebuild videos unless i'm building it over a weekend, but will keep that in mind. Thanks for watching
Is this a four wheel drive transmission?
no just front wheel drive
Gary Ferraro but the transmission has in a differential
yes, that is where the drive axles go, but this is just front wheel drive
Gary Ferraro is the 4 wheel drive the same?
No, diff would be larger with an extra spline for the transfer case
Hi! Can you share with me servise repair manual of AT jatco jf414e / re4f03c ? Of course if you have it
I do not have one, sorry
@@GaryFerraro thanks Garry!
I have a nissan ad van 2013 re4fo3b where can I get a rebuild kit to buy
where are you located?
@@GaryFerraro Jamaica
@@cerascetea You may have to purchase the parts on line, there is a site called Cobra Transmission parts
У меня а/т мигает 16раз и антизанос глушит двигатель до холостых оборотов, машина ползет только! Кто подскажет в чем причина?
Инфинити і35, 3.5литра
I have a 2000 Nissan primera i think it's a G20 infiniti in the USA. I'm not getting reverse r its moving slow and no power up slight hill road, I pull down the transmission need your help on solving my transmission problem
Is this a front wheel drive car?
@@GaryFerraro yes
It's a QG18 engine
@@natemorgan4665 ok, so no reverse, How does it upshift through the gears?
@@GaryFerraro its change smoothly
When my car is cold the reverse work great but in hot is not working? I dont know why
How are all the upshifts?
@@GaryFerraro good its just the reverse when the car is cold
@@LuisSanchez-jq9sy Well you certainly have a pressure loss, you probably have a problem with the seals for the reverse input drum. Can you put your shifter down to manual low? if so how is that?
@@GaryFerraro can I use a product " stops and seals trans fluid leaks" from bars leaks?
@@LuisSanchez-jq9sy I would not use any stop leak in a transmission, it swells the seals including the pistons seals, when the seals swell up, the piston seal pop out as the clutch is applied and when the piston returns the seal will tear, seen that a few times
Hello Sir
I hope you still using TH-cam!
at 8:55 I have taken the lock out but still the drum won't come out. any helpful idea?
Thanks in advance
not the drum actually, the " this whole thing will come out here" :D
take the snap ring, then the sprag assembly has to come out, there is another snapring behind the sprag assembly
@@GaryFerraro I have taken the first snapring, yet the sprag assembly does not come out. I almost have everything out the transmission except sprag assembly ( and the clutches behind it). Can it be stuck in anyway? because the transmission have little broken peices.
if yes, what can I try in addition?
Appreciate your response.
@@saeedovpoutine7497 try putting a small flat screwdriver where the sprag and inner race meet, try to get the sprag to move up
hi gary, im looking for a132L teardown, please help me, thanks!!!
Is this a toyota automatic trans? A130? if not what kind of car?
yes, toyota tercel 3 speed automatic
oh, wow, haven't seen one of those in 20 plus years
I saw your youtube video on the re4f03a and was in need of some help regarding the transmission, i own a 2005 nissan teana j31 that comes with the same transmission, my transmission broke down and at the moment im not sure what the problem with it is. Really need an expert, check your email please
In case you need it
gsferraro@yahoo.com