DakotaWebber

Hi all, Recently got a repalcement 6 speed for my G6e as the old one nuked itself from the forbidden milkshake, I have an air cooler installed so the issue wont happen in the future. I've noticed recently with about 20,000ks after install mainly in 2nd and 3rd gear when the foot is to the floor around 3000 in 2nd it will almost stop/shudder for half a second and jump up about 250 revs and continue onwards after, almost like its traction control cutting in and killing power. It seems alot more prominent over the rev range in 3rd gear and usually has about 2-3 of these skips, it doesnt really feel like it happens in 1st. When the air cooler was installed I did notice one tiny drip of trans fluid on the bottom of the case on the day but havent seen anything since, could this be a fluid issue? I bought this car for the claimed reliability and comfort and so far the transmission has been letting me down. Im also wondering if it could be because of the air cooler cooling the trans more than expected and it slipping itself to try and heat up or if its just the fluid being too cold. I havent changed spark plugs in a while but I doubt it could be a misfire, happy to provide a video of the issue later today, might be taking it to where I got the trans replaced in a few weeks and see what they can provide.

The coolant will be very milky if so, take it to a gearbox shop and get them to check, and while youre at it get them to replace it with an air cooler, wouldve saved me ~$4k if I had just gone with the air cooler instead of sitting on the idea of it...

Cheers guys looking forward to the peace of mind

Hi All, After swapping in a new transmission to my NA G6E, im going to get the trans shop to change the factory unit (which is what killed my last trans, woo hoo zf milkshake yo) to an oil to air cooler to prevent the chance of water getting in the box. Seeing as im N/a and dont thrash the life out of my box, would my temps be fine? are there recorded temps on the site that people have after a similar setup? should I install a thermo switch/fan in case im sitting in heavy traffic? I have an OBDII connector for my phone so I will try to find the trans temp PID (Torque Lite, does anyone know the details of this? should I get the paid version?) so I can hopefully monitor the temps, however I am confident in installing a temp sensor and or fan if need be myself. Thanks

For future reference if anyone has this issue, I went to Russels Auto Trans Specialists this morning on the coast, theyve come back saying the box is stuffed, and would cost anywhere between 3.5 - 5.5k to rebuild, probably further to the 5.5k end They offered the solution of a new box of $3.3k which I will be going for next week, potentially with them putting on an external cooler for future proofing Just a shame ive been stuffed around already for 1.5k for a mechanic who turned around and said they couldnt do it, at least the cooling was flushed in that...

Still unsure what you mean sorry, wouldnt the car be unable to drive if that was damaged? would it cause more issues if I continued to drive it? should it cost me more than 2k? Thanks could it not also be bad fluid level and or torque converter? the mechanic said it had no coolant in it, and its driving fine except for the revs surging, if not would I be able to pin it back on them? Thanks

Interesting, would a new torque converter fix it if it's the thing not locking up? How much should it cost to fix would you think?

I have a 2008 G6E with the ZF 6 Speed in it, I noticed that my Revs were jumping up and down maybe about 500 between 1500-2000, sometimes its at other places in the rev range depending on my throttle input. I took it into the mechanic, the very next day as I feared milkshake time... The coolant was discoloured and slightly milky, but the transmission was fine according to them, however after having the heat exchanger changed, trans flush, and coolant flush, Im still having the issue, I have even noticed a bit more milky coolant however that might be residue, im getting it all flushed again in about a weeks time. It only starts to happen in 4th Gear as the revs are jumping, when it starts to jump or when it starts to "slip" as it goes below 1500 the car makes a horrible shuddering / vibrating noise, It also happens in Cruise control, and the car feels like its constantly surging with power, as in not smooth. Im assuming it might be the clutches in the Torque Converter? Everything else with the transmission is fine, Gear changes are smooth, no noises changing from gears etc. Ive heard issues with the "E clutch" in the zf that activates after 4th gear, which might be where my issue is? If I put heavy power on they tend to stick to one RPM and let the car increase speed rather than go through the whole rev range when im above 4th gear The issue is also intermittent, sometimes it will stick to 1500 revs at 60 in 4th, 80 in 5th, and 100 in 6th, however then it might start happening again, it seems to get a little bit better when the car starts to warm up but still exists, currently im avoiding the issue just by going down a gear and letting it stick at 2k revs. I am currently on the coast and have been referred to Russels Auto Trans Specialists, does anyone think that my gearbox is stuffed, or it might just be the torque converter? maybe even bad oil refill?