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A Question maybe you guys can answer


chevy_chic20041
01-04-2005, 08:13 PM
ok when my car starts off it goes fine in first gear when it hits second its like it looses power then it gets to third and the power comes back? what is up with that??? every gear except second is fine??

89IROC&RS
01-04-2005, 10:29 PM
im assuming its an automatic, also, what kind of driving? just regular easy driving, or hard full throttle racing? also what year? engine? tranny? this will help decide the problem.

92rs25th
01-04-2005, 10:43 PM
if its an automatic , ive heard of this issue before and it ended up being the sun shell.

chevy_chic20041
01-05-2005, 01:40 AM
im assuming its an automatic, also, what kind of driving? just regular easy driving, or hard full throttle racing? also what year? engine? tranny? this will help decide the problem.
just regular driving it is an automatic its a 95 3.4, i know not a big engine but this has been bugging me....there is a big difference when it hits second gear.....

Morley
01-05-2005, 02:08 AM
Possibly the torque converter switch (solenoid) is locking the TC up in second for some reason.

Jenn07
01-05-2005, 08:03 AM
I have the same year car and same engine.. mine dose something like that to.. if i start off super gentle it wont do that ... if i put the throttle to the floor then it dosent like to shift... until after 3rd.... its weird

89IROC&RS
01-05-2005, 02:25 PM
ok, by loosing power, describe as best you can what happens, does the engine bog, rpms go down, car slows, or do the rpms go up, but the car stops accelerating.

if the rpms drop with the speed, it may be transmission and it may be engine. the rpm drop from first to second gear is very large in the 700R4, it leads to a bog in some engines. which is most noticeable at low rpms. The transmission may be fine, but the rpm drop from 1st to 2nd may be highlighting a beginning engine problem. so thats something to look into. check your air fuel and spark to make sure everything is fine. perhaps you are due for a tuneup.

If the rpms go up while the car is slowing down, you may have a burned up clutchpack, or the sunshell like 92rs25th suggested. or some other internal fault.

Tranny work is really expencive and hard to do, so i would look at the engine as a starting point, also because the clutchpacks for the second gear are shared by the 1st gear, so if you loose one, you should have lost the other as well.

Jenn07
01-05-2005, 03:49 PM
My car the rps dont go up or down.. it will go up until it sounds like it needs to shift in to third then stays there alittle bit and takes it time shifting in to third.. then it is fine it just has a rough time going for second to third..

89IROC&RS
01-05-2005, 09:38 PM
sounds like it might be a weak band or low transmission fluid. check your trans fluid level with the engine running, for what ever reason it would seem that your line pressure isnt high enough in second gear to shift normally. If its internal failure such as a band or sun shell your probly gonna need to take it to a transmission shop.

Jenn07
01-06-2005, 10:26 AM
... fluids are good....? what band?

89IROC&RS
01-06-2005, 01:45 PM
Inside the transmission there is a pressure band, ill be completely honest, i dont know exactly what it does lol, dont know alot about tranny design, havent had a chance to take a class on them, but i believe it applies pressure to the clutch packs not unlike a clutch spring, if it was not working right, the shift would not be happening normally.

also something else i thought of, is a shift solenoid. the modern automatics are computer controled, and rely on solenoids to actuate the fluid valves. If this solenoid goes bad, it may cause the condition you are having.

again i apologize that im not more helpuful, im taking shots in the dark baised on what i remember my tranny guy working on at the shop. so there are holes in what i remember.

Jenn07
01-06-2005, 03:21 PM
thanks for the help... shots in the dark are better than anything i can come up with.. I know almost nothing about cars!!

chevy_chic20041
01-06-2005, 05:41 PM
ok, by loosing power, describe as best you can what happens, does the engine bog, rpms go down, car slows, or do the rpms go up, but the car stops accelerating.

if the rpms drop with the speed, it may be transmission and it may be engine. the rpm drop from first to second gear is very large in the 700R4, it leads to a bog in some engines. which is most noticeable at low rpms. The transmission may be fine, but the rpm drop from 1st to 2nd may be highlighting a beginning engine problem. so thats something to look into. check your air fuel and spark to make sure everything is fine. perhaps you are due for a tuneup.

If the rpms go up while the car is slowing down, you may have a burned up clutchpack, or the sunshell like 92rs25th suggested. or some other internal fault.

Tranny work is really expencive and hard to do, so i would look at the engine as a starting point, also because the clutchpacks for the second gear are shared by the 1st gear, so if you loose one, you should have lost the other as well.
i have just gave the car a tune-up so thats done...it seems that at the beginning of second its almost like the rpms are too low and the car doesn't like it..lol...maybe its normal....it seems low rpms bogs the car down....but the rpms are just low at the beginning of second...i don't know what it is.....

89IROC&RS
01-06-2005, 08:18 PM
what engine speed to the shifts occur at?

chevy_chic20041
01-06-2005, 08:23 PM
what engine speed to the shifts occur at?
i think it shifts around 20?

89IROC&RS
01-06-2005, 08:43 PM
ok, guessing that means 2000 rpms, which under light acceleration is normal i think... been months since i drove one of the camaros, so i cant really remember. and what speed does it drop to when it shifts into second?

chevy_chic20041
01-07-2005, 12:51 PM
ok, guessing that means 2000 rpms, which under light acceleration is normal i think... been months since i drove one of the camaros, so i cant really remember. and what speed does it drop to when it shifts into second?
the rpms stay that low when it shifts into second

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