1992 geo metro trans problem help

[starglitch]

i have a 1992 geo metro and my trans gives me trouble when i go about 16 miles then it starts . it wont move it jurks then i pull over go back turn off then it will catch agian run fine again for another 11 miles maybe then wont go again is that TORQUE CONVERTER or is trans going out or oil pump can any one help me out and where i can get a good price on a TORQUE CONVERTER if thats what i need i changed my trans oil 3 times now trans filter 2 times still the same once it gets warmed up dont know what else to try but TORQUE CONVERTER thought its not pumping trans fuild any one help thx dino

[hot_sd]

Saw your post in the other thread but I'll reply here as it is a new topic.

Doubt if it is the TC causing this. A damaged TC will show other symptoms like slower driving speed. Oil pump is a possibility. If you completely lose drive in forward gear(s) the mostly likely cause is a malfunction in the forward clutch or the one way clutch. The one way clutch is purely mechanical (spague clutch) and so the sprauges may not be catching and the clutch may be slipping. The forward clutch is controlled by the hydraulics and so this may also be malfunctioning.

Possible causes - low line pressure, plugged or damaged forward clutch valve body passage (lile a crack), damaged seals or piston on forward clutch, damaged one way clutch.

To troubleshoot - check line pressure. If not normal remove valve body and check pressure regulators. If OK then remove transmission, disassemble oil pump and check.

If oil pressure OK check forward clutch passage in valve body. Also check the forward clutch accumulator for damage/leak. If OK then pull tranny and remove both foward clutch and one way clutch (one way clutch is on the rear half of the planetary gearset). The MX17 uses a Simpson type gear arranegment (common sun gear).

This is what I would do. Good luck.

[starglitch]

so your saying its not converter its clutch it has a clutch this is not a standed car i would not even know hot to take those parts off or test what u are saying u sound like u know what your doing so whats a tc so the oil pump is the one that sends the fulid not the converter .mine moves but then it just kind like it slips but will move after awhile like nothing is wrong then start again when gets warmed up well thx for info i wish i was as smart as u where

Doubt if it is the TC causing this. A damaged TC will show other symptoms like slower driving speed. Oil pump is a possibility. If you completely lose drive in forward gear(s) the mostly likely cause is a malfunction in the forward clutch or the one way clutch. The one way clutch is purely mechanical (spague clutch) and so the sprauges may not be catching and the clutch may be slipping. The forward clutch is controlled by the hydraulics and so this may also be malfunctioning.

Possible causes - low line pressure, plugged or damaged forward clutch valve body passage (lile a crack), damaged seals or piston on forward clutch, damaged one way clutch.

To troubleshoot - check line pressure. If not normal remove valve body and check pressure regulators. If OK then remove transmission, disassemble oil pump and check.

If oil pressure OK check forward clutch passage in valve body. Also check the forward clutch accumulator for damage/leak. If OK then pull tranny and remove both foward clutch and one way clutch (one way clutch is on the rear half of the planetary gearset). The MX17 uses a Simpson type gear arranegment (common sun gear).

This is what I would do. Good luck.[/quote]

[hot_sd]

Auto transmission have several clutches inside. Many people are not aware of this. They think clutches only exist for manual transmissions.

TC = torque converter.

Yes, the oil pump moves the fluid around the transmission. It has many functions. One is to feed the TC so that drive can be transmitted. In addttion to the fluid going around inside the TC and transmitting the drive is also flows in and out from the oil pump. The oil going out goes to the oil cooler 'cos the oil gets very hot by being thrown around inside the TC. It also provides oil to the gears for lubrication and generates the oil for making the hydarulics work.

If you are not sure what to do you should take the car to a tranmission shop. Find one that is a member of ATRA and the BBB. Also ask around - maybe someone you know can recommend a place.

[starglitch]

ok thank u very much that was fast resonds did not know u where here now

Originally Posted by hot_sd

Auto transmission have several clutches inside. Many people are not aware of this. They think clutches only exist for manual transmissions.

TC = torque converter.

Yes, the oil pump moves the fluid around the transmission. It has many functions. One is to feed the TC so that drive can be transmitted. In addttion to the fluid going around inside the TC and transmitting the drive is also flows in and out from the oil pump. The oil going out goes to the oil cooler 'cos the oil gets very hot by being thrown around inside the TC. It also provides oil to the gears for lubrication and generates the oil for making the hydarulics work.

If you are not sure what to do you should take the car to a tranmission shop. Find one that is a member of ATRA and the BBB. Also ask around - maybe someone you know can recommend a place.