New owner, couple of small issues

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
amc49
Posts: 1183
Joined: Mon Jun 19, 2017 7:24 pm
Car: '11 Nissan Versa
'17 Nissan Altima

Post

Some trans designs use a solenoid that modulates the line pressure overall and can affect almost anything on the trans if that one goes............usually called a main pressure solenoid or close. The others usually just work certain facets of the shifting action.

Need a line pressure check, likely not enough there. If pump is prevented from making the pressure needed then of course nothing will work.


amc49
Posts: 1183
Joined: Mon Jun 19, 2017 7:24 pm
Car: '11 Nissan Versa
'17 Nissan Altima

Post

There indeed is a 'line pressure solenoid' in that year trans...........

Destrto
Posts: 179
Joined: Sat Feb 18, 2017 8:56 am
Car: 1990 Nissan 300ZX 2+2 100K original Miles
Location: Arkansas

Post

amc49 wrote:
Tue Feb 06, 2018 12:09 am
Some trans designs use a solenoid that modulates the line pressure overall and can affect almost anything on the trans if that one goes............usually called a main pressure solenoid or close. The others usually just work certain facets of the shifting action.

Need a line pressure check, likely not enough there. If pump is prevented from making the pressure needed then of course nothing will work.
Thanks amc, for the verification on that. The shop says they did test using a pressure gauge at the solenoids and at the pump test port. They were not seeing any pressure at the pump.

The one thing I was not happy about, was that before i actually took the car to them, the shop said they could test the solenoids and the torque converter for failure. However, when I got the final call about not getting line pressure at the pump and learning that that could mean its a problem with everything between the pump and the torque converter, I asked if they tested the torque converter. They told me that there is no test for the torque converter.


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