not going into gear
06-20-2018, 10:04 AM
#31
Rennlist Member
I just changed my transmission fluid - I purchased the genuine Porsche manual transmission fluid from Suncoast. Curiously, since the fluid change, I have been having this issue shifting into first gear - this is the first time I have experienced this since purchasing the car a year ago.
06-20-2018, 10:47 AM
#32
Three Wheelin'
Before I bought the car, I think it sat for a while and the seals must have dried out because once I started doing maintenance on it, I noticed a gear oil leak from the cardan shaft seal. Judging by the stains on the underbody panels it had been going on a long while and I bet the trans was dried out. I drained, filled with new PTX, and replaced the seal but I guess the damage was done. Couple months later is when the trans was replaced.
06-20-2018, 11:33 AM
#33
Yea, I always wondered if there is some wear in my transmission dogs that is being masked by the PTX. Porsche fill is every 120K miles..... for my car, it appears to be about every 30K miles...and it really works. Was Porsche just way off? Did Asin use inferior metal in there? Who knows.... did anyone tear down a transmission with the first gear jam and actually look inside? Appears the 1st gear jam is pretty common and PTX appears to help most but not all with the issue. At least changing the fluid to PTX is way cheaper than gutting the transmission.
Peace
Bruce in Philly
Peace
Bruce in Philly
06-20-2018, 04:21 PM
#34
Rennlist Member
I've got about 15K miles on my PTX fill. Oddly it didn't do squat for the balky 1st issue when I first put it in, but when I got it back from the new engine, the problem happens much less often. At that time the DM flywheel and clutch release fork were replaced, so perhaps things are running truer/better-balanced than before. Or maybe the gearbox was properly torqued to the engine. Idk, just WAGs. I had 5 stick Bimmers over the years, all bought new, and all of them had the same issue with 1st. And those had the lever right over the trans, no long cables. I had several Toyotas, an RX-7, Volvo (FWD with cable linkage), and currently an '08 Corvette and none of them with this issue.
Having old gear oil or worse, the wrong gear oil in our trannies makes the syncros have to work harder (or in actuality, less hard) to get the dog gears sync'd. This is what makes the problem worse in those situations.
My .02
06-20-2018, 04:38 PM
#35
So I just traded a 991 c2 for a 997.2 c4s cab and I couldn't be happier. I absolutely adore this car, even more than my first Porsche (a 987.1 Cayman S). Quite often if I am driving and put the car into neutral at a stop and then try to go into first I can't, it just won't go. If I then let up and depress the clutch pedal it will usually let me put it into gear. What in the world is going on and should I have a mechanic look at it? The car is CPO from Porsche so.....
06-22-2018, 10:58 PM
#36
I'm not sure it's that uncommon for many manual transmissions to do this. Several ones I've had over the years would occasionally be hard to get back into first at a stop light. When it happens to me, I generally drop down to second, then first and it usually works. However, I also think it's probably a sign to change the oil.
Never thought twice about it.