i went today with my 92 240sx while i was driving around 2-3k rpm (2nd and 3rd gear) i would hear this sound irritating sound, its like the car is hesitating/sluggish then when i reach 4th gear theres a sudden boost and everything is all right...one more thing when i release the gas during all gears except 1gear the rpm will drop to zero makin me stall engine dies and stop..... i have done ma research but i couldn't get a good answer pls help .... do i need to rebuild transmission?
Modified by sushimonster at 1:08 AM 9/5/2004
auto transmission problem
Re: auto transmission problem (sushimonster)
hmmmm, thats odd, if it was the transmision, i would bet it would be the tourque converter, but that stalling leads me to beleve that its in the engine, the engine shoulnt stall like that when you let off the gas, can you describe the irritating sound,knowing that may help pinpoint the problem
Re: auto transmission problem (sushimonster)
sounds like a torque converter, in 4th maybe the torque converter clutch is locking up making it seem ok.
I dont know for sure but thats what I think.
sam
I dont know for sure but thats what I think.
sam
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sushimonster
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i drove the car after a service i think my fuel injectors were cleaned and the mechanic told me that i had transmission problem (the irritating noise) and about the stalling, i just cant figure it out coz after an hour drivin the car didnt stall... i have to check tommorrow if it will stall again... i just dont wanna have this symptons on and off i might get an accident in the highway... any other ideas about the stalling?
yeah, you defaiatly dont want to have it die on the highway
heres what im thinking, if it was locking up and not disengaging, then the engine would spin with the wheels, unless it has an over running clutch (kinda like a ratchet, only lets force be exerted in one direction) so, that leads me away from that idea, but i dont know everything about automatic transmisions, so dont cast that in stone
heres what im thinking, if it was locking up and not disengaging, then the engine would spin with the wheels, unless it has an over running clutch (kinda like a ratchet, only lets force be exerted in one direction) so, that leads me away from that idea, but i dont know everything about automatic transmisions, so dont cast that in stone
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sushimonster
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s13sr20chris
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Re: (240kid)
this sounds to me like a "multiple problem vehicle". its important to identify the mpv right from the get go because it can get real confusing. you prob have a trans problem. whats more important is the stalling. will it idle when you first start up? does it have to be hot before it stalls? what about with the a/c on? what rpm do you idle at hot/cold?
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sushimonster
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s13sr20chris
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Re: (sushimonster)
ok, im out of my comfort zone on this one bro. i am going to have to guess. most a/t units will drag the engine through torque converter backspin. this means the ecm doesnt need to squirt gas or fire the cyls the engine just keeps spinning with the a/t unit(with a slip ratio of course). if you are not getting that it could be a prob with the torque converter. now, in theory the ecm should command the iac to keep the engine alive when the rpms get low. maybe your tps is out of adjustment. then again i dont know if a 92 has closed throttle logic in the ecm. i am fairly certain there is no closed throttle position switch on a 92 though. stay with us and hopefully we can work this one out. try turning up your base idle and see if that helps. just temporarily turn it way up to see.
Re:
When it stalls does it feel like its still in gear as its slowing down. Or will it just coast? was it the same when you tried to put it in neutral?
Did all of this happen after the fuel injector service?
Check the engine compartment for loose harness plugs... just push everything in to be sure. make sure the throttle position sensor is tight, and that no vacumm lines are disconnected.
Did all of this happen after the fuel injector service?
Check the engine compartment for loose harness plugs... just push everything in to be sure. make sure the throttle position sensor is tight, and that no vacumm lines are disconnected.
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sushimonster
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s13sr20chris
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Re: (sushimonster)
dude, i would love to hook you up with an up or down vote here, but i just dont feel comfortable sending to the wolves with such a poor idea of the prob. sorry man, i wish i could just say put a trans in it and be done.
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sushimonster
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autox240sx
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sushimonster
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Re: (autox240sx)
hey autox your givin me hope so after the transmission service is your car runnnin ok???? my car stop stalling if i made sure i have lots of fuel...autox240sx wrote:i was havin that same problem b4 2 same exact symtoms , mines a 1992 also .. wow i thought i was alone.. i hate autos grrr.. i did a transmission service and flushed it with sea foam... now its in 3rd gear in the D position i believe .. at least it doesnt stall on me nemore...