A friend of mine's TP Auto Magna has been showing the right level on the gearbox dipstick (up to the COLD mark on a cold engine and HOT on a hot engine) for about a year. I helped him change the oil today and we drove about 60km.

Even though we lost exactly 3.5 litres, which we measured, and replaced exactly 3.5 litres, the dipstick shows over the HOT mark on a cold engine. This was after 60km of highway driving with OD on and off. Admittedly, we didn't drive much in Low or 2nd, just for 10 seconds up a steep hill. But why is it so high?

Could it be that the stick is so sensitive that when you go a fraction over the maximum volume it shows way over HOT?

We also changed the filter and pan gasket, and removed the metal fragments from the five magnets. This helped remove a lot more oil but with a 5.8 litre capacity, over 2 litres remained in the box and torque converter, which we could not remove.

Have to say that it did perform quite well on the road though. The old oil was over a year old, totally brown and without and viscosity like in a new oil. It can't have been making the boxes job any easier. And there was quite a lot of metallic fragments on the filter and pan magnets.

One of the things that really scared me was that the 24mm drain plug on the box was loose. You could easily remove it with your fingers with no physical grip or turn effort required at all. Does anyone know why this would happen? (I think somebody is trying to kill me! :unsure: )

Wut transmission do yu have on yur model? An F4A51. There is the screw-on external mounted tranmission filter. BUt there is also an internal transmission filter that is not servicable unless the case is seperated. Thats if yu have the F4A51 transmission. Also i kno everyone has their own way of checking but i never check the transmission fluid level with the engine running. Fill the transmission with fluid , start and run , select each gear and then stop and check the fluid standing height level. If it needs more fluid i start it again and then add as needed . And then perform a test drive. And after the drive to which the vehicle should be at regular operating temp. I stop and check the level.

I see alot of people get false reading by checking the fluid level while it is running on most Mitsubishi transmission .They see its over the level so they take sum out. The way i explained ive always dun it that way and never a come back.

It's a K751AOW5 Automatic.

Look at the vehicle tag on the firewall , right behind the intake plenum. It will say "MITSUBISHI MOTORS AUSTRALIA " and underneath it will have the engine code and under that the transmission code. It will be F4A**

The car doesn't have an intake plenum because it has a carbuerettor. It's a 1990 TP Magna. It's a G54B engine. Even the manual says its a KM175-1 but it says K751AOW5 on the box's stamped code.

My friend checked it thoroughly and it has no F4 code for anything. Just has two metal plates on the firewall, driver's side. It says things like Body type, Trim type, Paint type, VIN, Extras, manufacturing month, year and place.

Oh sorry about the mix up, i read all the info but was unsure of the model yu were speaking of. I thought yu were reffering to the model listed (1997).

Well this is where Chain Rattle comes in.

Funnily enough, I found in the manual a section on how to drain and refill the gearbox. You need 7.5 litres for it though, which means it would have cost my friend $80 instead of $40. So he's glad I got it wrong, as the oil in there is only around a year old anyway, and the book doesn't recommend changing it at less than 30,000km unless you tow frequently or operate the car in rough conditions (dusty, unsealed roads, harsh weather). He only does about 12,000km a year.

I repair and rebuild the TN and TP auto boxes

auto information
http://www.mitsubishiclubaustralia.com/for...topic.php?t=824

The KM177-6 (also known as F4A23)is a four-speed electronic automatic transaxle built by Mitsubishi and was used in all TP models and carburettored Second Generation models.

once a year to service and filter or
40,000 km what ever comes first

engine is The SOHC 8-valve 4G54 (also known as the G54B)

There we fo i have rebuilt all of those F4A21/22/23 and up and all models after as in the F4A41/42 and all those models. I havent dun work on a F4A22/23 in a long time, i had forget about their K number i onlee kno by F4A series denotation.

The 7.5 litres is it has been completely torn down and the torque convertor completely empty and the whole system is completely empty