Problems with junkyard automatic
#1
Problems with junkyard automatic
My friend has a 1990 240SX. She bought it for a very low price because it had a bad automatic transmission, which I replaced last week with one from a junkyard[0]. I am now experiencing the following problems:
[0] Yes, replacing it with a manual would have been better. It also would have been twice as expensive. The idea here is low-budget transportation that doesn't suck, not performance.
- The transmission does not shift automatically; D seems to start in second and stay there. Manually selecting 1st is the only way to start in 1st.
- Kickdown does not work, though I can hear the switch being activated when I press the trottle down.
- It won't shift in to 3rd when in D.
- The torque converter does not lock up.
- The transmission shudders at speed, especially around 35mph and over 60mph.
- Fluid: it is properly filled with Dextron III fluid.
- Electronic plugs: all the plugs that exist are plugged in. There is one three-pin plug on the car side that has nothing to plug in to. My multimeter shows no change in resistance between any of the pins in response to the kickdown switch.
[0] Yes, replacing it with a manual would have been better. It also would have been twice as expensive. The idea here is low-budget transportation that doesn't suck, not performance.
#2
i just posted how to put the transmission into diagnostics mode without the consult tool from nissan in another thread... here is the link to the post...
http://www.club240.com/forums/showth...threadid=25916
good lick as i am having some of the same problems with my a/t... my codes say it is the speed sensor and the rev sensor that are either disconnected or shorted out... i replaced the speed sensor lasnight and i am going to try to find a rev sensor but s far no luck... must be a dealer part...
http://www.club240.com/forums/showth...threadid=25916
good lick as i am having some of the same problems with my a/t... my codes say it is the speed sensor and the rev sensor that are either disconnected or shorted out... i replaced the speed sensor lasnight and i am going to try to find a rev sensor but s far no luck... must be a dealer part...
Last edited by wikd240; 08-31-2005 at 02:14 AM.
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