Tranny swap from 94 to 99
#1
12-04-2011, 01:28 AM
Tranny swap from 94 to 99
I have a 94 v6 camry engine type 1mzfe....all tranny am getting from that year make 93-96 are failing or failed. I put 2 tranny failed already in 1 month. Found this 99 v6 same engine 1mzfe with tranny for sale. I went to check it is same everything, all hook up the same....Should I gamble putting this tranny? It cost only $400 for the tranny.
#2
12-04-2011, 12:49 PM
Were the replacement trans used?
Most trans failures are caused by the previous owners never changing the trans fluid. If the fluid was changed every 30-40K miles the trans would last the life of the car.
The older year trans had more miles on the never changed fluid and more prone to failure because of this. The later year tranny may have less miles.
Take it the trans you are interested in is out of the car, no test drive possible.
On the new trans if the fluid is still inside check the condition. Should be red or reddish, not black.
If possible remove the trans pan. There should be a couple of magnets on the bottom of the pan to attract metal debris. The amount of metal debris should be minimal with no chunks of metal. Inspect the bottom of the pan for excess debris as this is where it will settle over time.
Ask how many miles the engine/trans has if known and if the fluid was ever changed. If over 120K with no fluid changes this may be pushing the fluid beyond its limits reflecting in trans wear.
If possible get some info on the car it came out of. Did the car pull a trailer, if so this is even more concern as trailer pulling get the fluid extra hot leading to premature fluid failure. Ditto for lots of stop and go driving.
If you have bad luck on used trans might opt for a exchange rebuilt or have one of the previous trans rebuilt. There are common failure points on these trans. Just because the trans has issues, does not mean the complete trans is shot. The trans can be rebuilt with new parts kit.
One other issue, if you buy any used trans have a shop that can actually do trans repair work (versus just exchanging trans as a unit) install a new one-way clutch in the torque converter. This clutch often fails resulting in no forward or reverse movement.
It's a common failure point. Replacing the clutch only requires taking off the converter (easy enough if the trans is out of the car) not taking apart the trans. No doubt most trans shops will want to sell you a new converter as this is more profit.
Most trans failures are caused by the previous owners never changing the trans fluid. If the fluid was changed every 30-40K miles the trans would last the life of the car.
The older year trans had more miles on the never changed fluid and more prone to failure because of this. The later year tranny may have less miles.
Take it the trans you are interested in is out of the car, no test drive possible.
On the new trans if the fluid is still inside check the condition. Should be red or reddish, not black.
If possible remove the trans pan. There should be a couple of magnets on the bottom of the pan to attract metal debris. The amount of metal debris should be minimal with no chunks of metal. Inspect the bottom of the pan for excess debris as this is where it will settle over time.
Ask how many miles the engine/trans has if known and if the fluid was ever changed. If over 120K with no fluid changes this may be pushing the fluid beyond its limits reflecting in trans wear.
If possible get some info on the car it came out of. Did the car pull a trailer, if so this is even more concern as trailer pulling get the fluid extra hot leading to premature fluid failure. Ditto for lots of stop and go driving.
If you have bad luck on used trans might opt for a exchange rebuilt or have one of the previous trans rebuilt. There are common failure points on these trans. Just because the trans has issues, does not mean the complete trans is shot. The trans can be rebuilt with new parts kit.
One other issue, if you buy any used trans have a shop that can actually do trans repair work (versus just exchanging trans as a unit) install a new one-way clutch in the torque converter. This clutch often fails resulting in no forward or reverse movement.
It's a common failure point. Replacing the clutch only requires taking off the converter (easy enough if the trans is out of the car) not taking apart the trans. No doubt most trans shops will want to sell you a new converter as this is more profit.
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Amekaji87
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12-04-2011 02:39 PM
