overdrive in AT don't work

[j0hnniz]

hello all. im about to pick up a 92 Eclipse GS. the only problem is the automatic's overdrive don't work. is this critical? is it hard to fix?

 

[siceclipse]

its not critical. it acts like a 5th gear setup. You turn it on when going up a hill so it downshifts easier so you can get up the hill more smothely and its good on the highway to bring your RPMs down when taking a long cruise.

 

[napkinthief]

speaking from personal experience, you cant over 75ish without od

 

[c5chris]

Buy new end clutches and new seals from IPT. The stock end clutches are too weak and fail when you leave 'em running on overdrive for extended periods.

 

[TooFastTooG]

speaking from personal experience, you cant over 75ish without od

WTF I never have O/D on and I go over 75 all the time, only difference with over drive on is your rpm's will be lower.

 

[92awdgsx]

WTF I never have O/D on and I go over 75 all the time, only difference with over drive on is your rpm's will be lower.

So what, you drive around with the RPM's at 5-6000 all the time in third gear? Thats really good on the motor. WTF

 

[Eclipsei95cl]

speaking from personal experience, you cant over 75ish without od

Your car had other issues then. No way was it from the OD being broke on the car.

All you need to do is get an End Clutch Kit at IPT and take it to a tranny shop and have them put it in and your all good to go.

 

[91Bomb]

DO YOU NEED OVERDRIVE?? Overdrive is your 4th gear in a 4-spd automatic! People here are driving around in 3rd gear and saying the heck with shifting to 4th? It's a freakin automatic for crying out loud!! Why would anyone want to drive continuously with engine rpm's at ridiculously high speeds? Is it you need a new engine anyway or are you getting that 12 cent gas from Venezuella?

 

[91Bomb]

its not critical. it acts like a 5th gear setup. You turn it on when going up a hill so it downshifts easier so you can get up the hill more smothely and its good on the highway to bring your RPMs down when taking a long cruise.

This makes absolutely no sense and is one of the stoopidist things I've ever seen If you're going UP a hill you MIGHT want to turn the OD OFF not ON so that you're holding the trans in 3rd gear which puts you at higher rpms's and in a more useable power range of your engine which you MIGHT need for a hill climb.

OD DOES NOT act like a 5th gear. OD is your 4th gear and if you have a lock-up Torque converter than at around 50+ mph (when cruising in 4th gear which is your OD) you will feel your rpm's drop by around 3-400 rpms and that is what acts like a 5th gear.

From what I've been reading is that some misguided people are leaving the OD button in the off position which means they're always in 3rd gear and it sounds like (never will try this myself) if you do this then at somewhere between 80 and 100 mph (ridiculously high rpms in this gear) it will finally shift out of 3rd and into lock-up mode and it never actually gets into OD or 4th gear at all because the switch is being left in the off position. Now I know why M/T guys look down on us A/T guys and think we're a bunch of idiots and it's because of stuff like this. Someone please explain to me why anyone would want to drive around at these ridiculously high rpms UNLESS you are purposely trying to kill your motor? If you're looking to buy a car try to get one that has at least 4 pistons and 4 working gears in the trans

PS: 1g turbo A/T's have no lock-up TC's so if you've got the OD button off you will never upshift above 3rd gear.

BTW, I really could use a good laugh today so what are the rpms at 80+ mph in 3rd gear anyway?

 

[napkinthief]

at 75ish for my, the engine hits 6500 and it feels liek you when revin netural and hold the gas down and let the engine keep revving, the rpms drop like 300 then go back to 6500 and repeat

 

[91Bomb]

at 75ish for my, the engine hits 6500 and it feels liek you when revin netural and hold the gas down and let the engine keep revving, the rpms drop like 300 then go back to 6500 and repeat

Why would you repeatedly do this?

 

[doug]

napkinthief, you have a different transmission than we do-- I'm not sure if the end clutch is a weak link in yours like ours is. Doesn't sound normal, though.

As for j0hnniz, the end clutch replacement is both cheap and easy. I say go for it.