Transmission Issues?
#1
Driver School Candidate
Thread Starter
Join Date: Mar 2015
Location: Louisiana
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Transmission Issues?
I have the following CEL on my 2003 RX 300
p0766 (3 times) and p0741 - the p0766 says solenoid b & d - is this something that can be fixed by myself or does is need to go to a transmission shop? The car would act like the trans was slipping, rpms would spike and car would move accordingly. did it for a few miles then stopped, got in it the next day went about 15 miles down the road and all dash lights came on. O'Reilly gave me those codes and the reported fix is replace solenoid or transmission - two very different options. Any help would be greatly appreciated.
p0766 (3 times) and p0741 - the p0766 says solenoid b & d - is this something that can be fixed by myself or does is need to go to a transmission shop? The car would act like the trans was slipping, rpms would spike and car would move accordingly. did it for a few miles then stopped, got in it the next day went about 15 miles down the road and all dash lights came on. O'Reilly gave me those codes and the reported fix is replace solenoid or transmission - two very different options. Any help would be greatly appreciated.
#3
Driver School Candidate
Thread Starter
Join Date: Mar 2015
Location: Louisiana
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
So I got the results from a transmission shop. He said that the 3rd gear clutch is out and that I have to replace the tranny at a cost of $4000. Can I replace the tranny with a used one from another vehicle? He said something about the tranny being computer matched to the vehicle and that you can not just put any tranny in the car. Is there any truth to that? I can find a used trans for any where from $400 to $1500 which is a big difference in price.
#5
yes, the transmission has to be matched to the computer. The ecu in some cars have tables built in to calculate the gear load so it can mix the air/fuel correctly. Other cars have a separate transmission computer that works in conjunction with the engine ecu.
As long as the pinout on the transmission matches the plug on your engine harness, you should be good to go as long as the replacement transmission has the same gearing as your original setup.
As long as the pinout on the transmission matches the plug on your engine harness, you should be good to go as long as the replacement transmission has the same gearing as your original setup.
#7
According to the wiki, the first generation only came in 4sp auto. However I am uncertain if they had different transmissions available because a 2.2L and a 2.4L was marketed overseas.
An educated guess would be to ask the vendor if the transmission came from a 3.0L V6, to be on the safe side especially if your vendor source is a salvage importer.
For the 199-2003 RX300 AWD, the transmission code is U140F
If you have a FWD model, you will have to confirm the code. ..i believe it is the U140E
Be sure to pick the correct one or your transmission may shift funny due to the different final drives.
Trending Topics
#9
Driver School Candidate
Join Date: Feb 2015
Location: ca
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
Trans light is on nd check engine is on
I'm having Issue with my rx300 as well. Code reads p0765 solenoid malfunction. Anyone knows if doing a transmission flush will fix this problem. Pls lmk. Thank you .
Thread
Thread Starter
Forum
Replies
Last Post
halexus
ES - 1st to 4th Gen (1990-2006)
4
11-07-17 05:42 PM