Car is a vintage 1982 Renault R5 automatic. I've just swapped the transmission. It seems the 1st gear solenoid does not properly work unless the transmission is hot. On cold start, there is no way the car will start in 1st. It usually starts in 2nd but when really cold, no matter what, only the 3rd gear will work! After approx 2minutes, 2nd gear comes to life (this requires to activate one of the two solenoïds); and after 5~10minutes 1st gear works (this requires both solenoids to work).
Background information that's the same transmission internals as the DeLorean (different case to accommodate the specific differential). Friction parts are common to the 3L30. Needless to say this transmission is at home in the little Renault that weights 500kg less than the DeLorean and does not have even half the power and torque of the V6...
I've drained the oil twice since the initial refill (initial filled with Dexron 3, then Dexron 2 as recommended back then, and finally Dexron 3). I've clocked approximatively 200miles since the swap. The transmission I've used was 34.000km (20.000miles). Was partially open to check the clutch pack. It had no sign of wear. It was quite clean, although a few spiders had found their way through the dipstick. This being said I had bought this transmission in 2014 and stored it till now so it did not operate for quite some time. Also after installing it I realized the mosfet & capacitor of the transmission ECU were shot. So I suspect the car had been running in manual mode for quite some time prior to my purchase. So chances are that the 1st gear solenoid did not operate for close to 20 years...
Any way to perform a gentle clean-up of the gearbox? No idea if "cleaners" will do it any good?
Does the use of Dexron 3 instead of Dexron 2 has an impact on old transmission?
Any advice on how to revive this transmission would be greatly appreciated.
Background information that's the same transmission internals as the DeLorean (different case to accommodate the specific differential). Friction parts are common to the 3L30. Needless to say this transmission is at home in the little Renault that weights 500kg less than the DeLorean and does not have even half the power and torque of the V6...
I've drained the oil twice since the initial refill (initial filled with Dexron 3, then Dexron 2 as recommended back then, and finally Dexron 3). I've clocked approximatively 200miles since the swap. The transmission I've used was 34.000km (20.000miles). Was partially open to check the clutch pack. It had no sign of wear. It was quite clean, although a few spiders had found their way through the dipstick. This being said I had bought this transmission in 2014 and stored it till now so it did not operate for quite some time. Also after installing it I realized the mosfet & capacitor of the transmission ECU were shot. So I suspect the car had been running in manual mode for quite some time prior to my purchase. So chances are that the 1st gear solenoid did not operate for close to 20 years...
Any way to perform a gentle clean-up of the gearbox? No idea if "cleaners" will do it any good?
Does the use of Dexron 3 instead of Dexron 2 has an impact on old transmission?
Any advice on how to revive this transmission would be greatly appreciated.