F17 (1.8 five speed fluid change)

[joeglock40]

Wasn't to hard, just kinda tedious making sure not to Jack up the threads. I put the purple stuff in to n seems to help smooth the shifting out Alil too

 

[$ub$onic]

Wasn't to hard, just kinda tedious making sure not to Jack up the threads. I put the purple stuff in to n seems to help smooth the shifting out Alil too

Ya, it's tricky the first time trying to remove the diff bolts.

I ended up converting mine to studs vs bolts.

 

[joeglock40]

Nice, thanks for the write up, definitely helped out a ton

 

[Palmaris]

Bump!

I changed my transmission fluid and used the Amsoil 5W30 Synchromesh fluid.
https://www.amsoil.com/shop/by-prod.../manual-synchromesh-transmission-fluid-5w-30/

Procedure was not much different than listed here after I was appalled that there was no drain plug! It just caused a 2 week delay to make sure I had the proper time to do the job.

The oil was drained out and we didn't measure it but it didn't seem like a lot. A pump was used to fill the transmission through the fill hole, so we did not take off the sensor.

Now the transmission feels great! I would be the first to admit that everything felt fine before I changed the fluid, but now it feels noticeably better. It just seems to go into each gear easier and smoother. Its been a warm weekend so I am waiting for a cold day to see if the feel may be even better during cold startups.

Thanks for the helpful post!

 

[$ub$onic]

I ended up changing the diff cover bolts to studs to ease in fluid change.

I don't mind not having a drain plug, it allows you to inspect the diff when you change the fluid.

 

[i_am_bs]

I ended up changing the diff cover bolts to studs to ease in fluid change.

I don't mind not having a drain plug, it allows you to inspect the diff when you change the fluid.

Sorry to bring this thread back from the dead. Do you happen to know what size of studs you used?

 

[$ub$onic]

Sorry to bring this thread back from the dead. Do you happen to know what size of studs you used?

They are like a m7

It was a bastard size to find but the local home Depot had bolts I machined the heads off of

Sent from my Pixel 2 using Tapatalk

 

[wr_guy]

Can you use a fluid evacuator to suck out the fluid from the fill hole?

 

[ReneeE]

Is there a reason why no one mentioned using the oil from the Chevy dealer? Is the AMSOIL better than the spec oil from the dealer? TIA.

 

[lliamiskool]

So I changed the fluid in my f17. I change it to royal purple max gear 75-80 something weight. Here is what I did


Tools needed: 7/8 socket
11,13 socket
2 quarts of gl4 spec oil
Drain pan
Jack,ramps,lift,whatever
Oil resistant silicon on hand
Rubber hammer (maybe)

.

You will be filling it though the reverse light switch. You will need to disconnect the wire and (I used ) use a 7/8 socket. It is just snugged on so a light twist should work

bottom view


Then you will need a 13mm to unscrew the fluid level cap seen here

. It's hard to see but it's very easy to find under the car


Then use a 11mm to unscrew the 10 diff cover bolts


Now listen VERY CLOSLY 1) do this by hand 2)you will get 5-8 turns out on the screw and they will get tight DO NOT FORCE THEM!!!!! Screw them back in alittle then back out. If you force them you will more then likely strip the threads. Take out all but 2. Slowly loosen the last two and the cover should just come off. If you get the two screws a majority of the way out and the cover is still attached hit lightly with a rubber hammer

Beings that its a new car you should not need another gasket but have a oil resistant silicon on hand just in case


Next re apply the cover and torque to 12 foot pounds DO NOT OVER TORQUE!!!! Torque in a star pattern


Then fill with oil through the switch hole till it runs out of the fluid level cap hole

When finished re install all plugs make sure you just snug the reverse switch

Make sure nothing is leaking


Disclaimer: this is how I did it, I am not responsible for your mess up


So far it seems to shift a lot better and I will report more info as I drive more

Any chance you can describe where the fluid level cap it? The picture doesn't work. Thank you!