i got my stock 89 camaro and in overdrivei can get to 75-80mph fine but it wont shift up form that, it just stops at 2500rpms and wont shift.....does this soudn leik i need a neww trans, and is it cheaper jsut to replace or rebuild?

 

In overdrive........

What do you mean, it won't shift into overdrive anymore?

Or your converter lockup isn't engaging?

 

no i drivein overdrive all the time, and it goes into over drive after 40mph auto. so when at 80mph its wont shirf. i dunno if its a 700r4 becuseit gots 5 gears... it like it wont go into 5gear

 

It doesn't have 5 gears, it's got 4 gears plus converter lockup. If you put the shifter into D, and not OD, how many "shifts" do you feel, 3? And in OD, you feel 4? More than likely what you're not feeling is either the transmission isn't going into overdrive anymore, or your torque converter isn't reaching lockup, in which case you've probably got a bad torque converter clutch lockup solenoid...

 

ok in that case i have a bad converter.......can you please tell me what parts i will need, for i can get them...


thx

 

You'll PROBABLY need what's called a TCC lockup solenoid. It's basically the motor that allows lockup to take place... It might be a dealer-only part, but check elsewhere first. Autozone, Discount Auto Parts, Central, Bennett....your local parts shops.

 

ok just took it for a test spin. in DRIVE it would not shift into 3rdand in OVERDRIVE it woudl not go into 4th...does this sound liek it needs a new tranny?

 

Doesn't quite make sense....are you sure you're not mistaking the lockup for a gear somewhere in there? Other than that, sounds like maybe your shifter is misaligned. If you push the shifter up just a little bit past overdrive, towards neutral, will it shift?

 

oik this is how i usally do it , i start in DRIVE and when its time to shift i have to lift my foot off the as a lil sometimes for it to shift then wehn i get around 55mph i switch it to OVERDRIVE then i can get it to like 75mpg then it wont shift from there.....

 

Overdrive is it, that's all there is, there ain't no more! Are you talking about once in overdrive and cruising you put your foot to the floor and it dosen't down shift?
Does any one know what the speed limiter is set at on a 305?

 

wel u an put it on "d" for drive and "od" for overdrive. u see what im talkign about i swtich it into "od" after i get to 55mph then it shifts up. and fro there it only goes to 75mph and wont shift up again, only can go up to 3rd gear

 

I think you're counting an extra gear in there somewhere. Why do you feel the need to shift between D and O/D manually?

 

well even if i leave it in overdrive, my point is it wont go past 75mph it just like doiesnt wannsa go past 2500rpms .

 

Is it running rough? You say it only goes 75 mph and 2500 rpm is that with the peddle on the floor? If so what happens if you lift the peddle just a little? Does it pick up speed? I wonder if the converter is plugged.
D=3rd
OD=4th

 

theres a rattleing spound every noe and then but it dont shake or anything and if i out it all the way to the floor it slips and redline and i gotta lift off the pedal

 

sounds like a bad tranny

 

Agreed but the descriptions are still a bit hard to understand... Like, it IS shifting into Overdrive, but it isn't....I definitely think the TCC lockup here is playing a big part in the confusion.

But the car should absolutely accelerated past 75 mph, UNLESS youre trying to go WOT and redlining 3rd gear...it won't shift into 4th at WOT. It's a lockout to prevent damage to the trans overdrive band, which is very weak and can't sustain consistent wide open throttle operation.

But if you've tried to go past 75mm at PART throttle, without a kickdown, the motor should definitely do it.

Am I missing anything here?

 

nope i was freeway just now and it was in overdrive and it got to 75mph and didnt waan go any faster.....they iti dunno what to do now? just wont go past 75 and just goes at 74mph 2500rp,s.. shoudl i get it rebuilt or what vuz taht gonna cost like 800. 00 and i can buy a new 700r4 for like 700.00 on ebay.....whats the best thing i should do here

 

So, you are TRYING to go past 75mm, while you're NOT at wide open throttle....but the rpms just won't go up anymore? Sounds like an engine problem. Will it rev past 2,500 rpms in other gears? Does it feel like it's really weak compared to normal?

I mean it sounds like a motor problem or a rev limiter, and at 75mph, it definitely can't be a rev limiter.

 

well if im in partk i can rev it up and it will smoke a lil, only smokes when i do that thoguh and i can recv it up to like 4500rpm then it will like loose power i reb it up again and when it coems down off thr rpms teh engine almost dies....but this only happens when rev it up in park. and as far as only goign to 2500 rpms in drive, it always switches gears no more then 2500rpms. it wont switch until then.. so while its switchign gears it will always be at 2500rpms when it switchs

 

I would say do a good tune up first. Replace the plugs, wires, cap, rotor. Check timing, TPS, IAC, MAF, EGR, and O2. Make sure transmission cable is adjusted correctly. Are there any codes set? Check for a plugged catalytic converter. Check the tranny fluid level and have you changed it lately? Also have you changed the engine oil and filter? A plugged filter can lug an engine down. Check for vacuum leaks. Let's get back to basics and make sure you've got a good solid platform to start with.

 

ok i already did the following:

oil change
oil filter change
new plugs
new wires
new cap and dis.
new air filter.
timing ajusted

this all i have done to this car since i bought it, i also should mention that i do smell exuast inside the car alot. i think my injector is leaking , thats what the shop said.....

so whats teh first thing i shoudl do?

i probably shoudl go get a tranny flushand check vacccum leaks and see if theres any exhust leaks right?

 

i would fix the injector first. I agree with katman, get a good base and then worry about going fast.

 

Some thing you might try is a whole bottle or Red Line fuel injector cleaner in about 3/4 tank of gas and see if that cleans the injectors. I'm an AMSOIL dealer but haven't found anything that cleans better!
You say you have replaced all those parts since you've owned the car, but is that before or after the problem? What was the last thing you did to the car, before the problem started?

 

the problem was always there, before i changed teh parts and after