okay, im trying to figure out what tells the automatic tranny when to shift out of gear or into gear. the problem im having is my car after you get up to about 20-30 mph slips out of gear. its not a fluid level issue. and the shift lever appears to be attached and i can feel it clunk thru the gears but its like its in neutral. if i stop the car wait a few seconds put it in gear i can usually go but soon as i get going it slips out. when i dropped the engine in a few years ago i had a problem where the car would go but it wouldn't shift out of first. i ended up swapping out the sensor in the rear passenger side of the tranny and it fixed the problem. im wondering if that sensor can cause the tranny to not shift, could it also be causing it to shift out of gear an into neutral. i know the tranny isnt' leaking so if its out of fluid that means the tranny is burning it up which would require a new one. im just trying to rule out anything electronically related before i go and buy another tranny and swap them out because its personally not something i want to do.
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does it have selenoids? what year is the car? it could be the band and/or clutch plates worn out. It might also be a selenoid not turning on/off.
Yea i was gonna suggest the solonoid over the clutch plates.
Also Jason, check your IAT sensor. Did you get the screw in CAMARO sensor? or is it the stock one?
My Camaro IAT kept breaking off and it would cause my tranny to slip real bad. Just a thought.
~2014 New Z under the knife, same heart different body~
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2012 numbers - 4SPD AUTOMATIC!!
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306 TQ
david wtf? broke off?
i would definitely check that sensor you replaced before just in case.
I'm tired of wasting my time... now I'm breakin' free.
z yaaaa wrote:david wtf? broke off?
i would definitely check that sensor you replaced before just in case.
Yea, you know the blue little sensor thing that is on the end of the IAT sensor, that little thing keeps getting sucked off. Its been good for a while though, 20 psi the little blue thing goes byebye lol.
~2014 New Z under the knife, same heart different body~
______________________
WHITECAVY no more
2012 numbers - 4SPD
AUTOMATIC!!
328 HP
306 TQ
wtf thats odd. i guess im not quite understanding what you mean... the sensor probe END? on a stock ld9 is red i think? that right? and has like a 'cage' around it?
so basically the sensor end is getting sucked off and into the engine? wow...
jason- the iat sensor isnt anywhere near your throttle body... unless aaron made it that way in the charge pipe? anyways... it should be stuck in your cold side somewhere in the area of the bov i would think...
I'm tired of wasting my time... now I'm breakin' free.
Sounds like IAT sensor.
Brad I believe David is using the Camaro IAT in the HO manifold. It has a blue tip unlike ours with a red tip.
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the iat sensor, that the thing davids talking about that sticks into your intake right? that would control shifting? would having it in the intake pipe pointing in the wrong direction cause that. some one school me a little on the iat, i didnt realise it had anything to do with shifting. maybe i should buy one of those today as well while im at the dealer.
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oh god yes man. IAT is a BIG factor in transmission control... ive never understood why but ill be damned if the trans acted like it was going to explode with mine unhooked once. throws codes and does some real nasty stuff, hard shifting is the one i remember the most.
but yes... countless people come into this forum claiming trans issues and we tell them to check their iat sensor and 9 times out of 10 its what was causing the problems.
but having yours point backward wont have any difference or negative effects. it just reads the air temperature is all. you could leave it out of the intake track completely just so long as it remains hooked up and it would function just the same. just read in the wrong area is all.
I'm tired of wasting my time... now I'm breakin' free.
z yaaaa wrote:wtf thats odd. i guess im not quite understanding what you mean... the sensor probe END? on a stock ld9 is red i think? that right? and has like a 'cage' around it?
so basically the sensor end is getting sucked off and into the engine? wow....
Sorry, yea I have the Camaro IAT sensor. There is a blue little thing inside the 'cage' on the end of the sensor that keeps breaking off.
~2014 New Z under the knife, same heart different body~
______________________
WHITECAVY no more
2012 numbers - 4SPD
AUTOMATIC!!
328 HP
306 TQ
i just had always thought the iat was strictly for the air fuel deliverty stuff not the tranny.
thats the thing with mine though, its not clunking its not running diffrent, doesnt make any sounds, just slips right out of gear. i bought the sensor on the back of the trans today, i'll likely try and pick up a new iat as well jsut to be safe and see what happens.
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well sheeeeit...
dont know what to tell ya, man. hopefully those sensors fix the problem, and ultimately, hopefully your trans is ok.
I'm tired of wasting my time... now I'm breakin' free.
sndsgood wrote:i just had always thought the iat was strictly for the air fuel deliverty stuff not the tranny.
Nope.... My guess is it uses the IAT reading to adjust the shift pressures according to temperature. So it compensates for the stiffer fluid when its cold out. I could be way out in left field too tho. I know having it unplugged makes the PCM think its REALLY cold out. My HPT config is setup to register down to -40 and when its unplugged its pinned on -40. It'll eventually throw the trans into limp mode.
well got the tranny sensor last night, was going to pick up the camaro iat at autozone last night but forgot when i picked my air cleaner up and dropped off my oil so i'll pick that up tonight and if i dont have to work late, hopefully i will get both of those on. i did get the car up on jackstands last night, checked the tranny fluid and had a court drain out which was basically the quart i put in in the parking lot so it is confirmed that i am not low in fluid. and i did pull my throttle body off and plugged up a bad hole that was causing a major vacuum leak. we will see how tonight goes. if these two sensors don't do the trick it looks like i will need a new tranny which will have to wait till after the bash. which mean i'll need to call and reserve a car hauler for the bash lol.
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just an newbish idea.... but is it only at 20-30 mph that this happens? does it happen if you put it in 1st, 2nd, and 3rd yourself instead of Drive???
Any update on this yet Jason?
~2014 New Z under the knife, same heart different body~
______________________
WHITECAVY no more
2012 numbers - 4SPD AUTOMATIC!!
328 HP
306 TQ
