Question about 1990 Nissan 300ZX

Open Question

My 1990 na automatic 3 and up gears are gone

It started when i would sometimes hit the gas and the gears where not catching so i would hav to let off the gas and slowly gradually push down, it was like that for a couple of weeks then when im goin around 40-55 the rpms would shoot for about 3-4 seconds then come back down and i wasnt pushing the gas hard or anything. finally it would do it around 3rd gear only letting me get to about 20 miles hr. i thought it was the tranny but could it be somethin else like a computer part or vacume hose that might connect to it please help its a good car and id hate to spend 300$ on a tranny and that not be the prob.

Posted by on

  • bethany300zx Oct 01, 2008

    I'm having the same problem with my 1994 model! Sometimes it just rev's out and wont go into 3rd gear. I'm also hoping it's not the transmission. I've also noticed it's take off from first gear is alot slower.

  • mantaghi19 Oct 14, 2008

    i just changed my transmission and it still has the same problem iv changed the throttle module and put new headers in it. but now the speedometer doesnt work and it still smokes from the headers im jus about out of ideas too i need big help!!!!

×

Ad

2 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
hondaman900
  • 40 Answers

SOURCE: 300zx 1990 automatic non turbo 3rd and up gears are gone

You need to do a transmission diagnostics. Its easy and will eliminate questions about the tranny and what's up with it including the complex sensors that inform the ECU how and when to shift. You'll find the transmission diagnostic process in the Transmission part of the online factory service manual.
Reading the indicator lights will give you a code and a diagnosis of the tranny issue. If your tranny checks out ok then you'll need to check the ECU. The manual also has a separate set of steps to diagnose the ECU. Since the ECU controls the shifting, if the tranny itself reports back as fine, the you'll likely have an ECU issue which should show up in the diagnostics and/or indicate what piece of equipment or sensor is causing the problem.
I would do these diagnostic procedures before replacing anything. Z32 parts are not cheap and you may be making unnecessary replacements. Since you already replaced the tranny and your problem persists I would advise going straight to the ECU iagnostics and identifying what is making it shift incorrectly.
Hope this helps.

Posted on Dec 28, 2008

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Automatic transmission won't catch any gear?


Check trans fluid levels, if this is ok, could be a torque converter or valve body solenoids issue.

Aug 21, 2012 | 2003 Chevrolet Blazer

1 Answer

I have a 1990 F250 xtra cab with a 460 cui, 7.5 liter fuel injected gas guzzler, The steering wheel must be tilted all of the way up for it to start, and sometimes i need to wiggle the gear selector, it is...


You should either check the neutral switch on the column inside by the base or the steering wheel or replace it. Sounds like it maybe shorting out or a wire is pinching.

Jun 23, 2017 | 1990 Ford F250

1 Answer

Hi, I`ve just buy a 1990 Dodge Spirit 2.5L Turbo, but yestrday I was unable to start. When I turned key, starter spins freely, but engine didnt catch up. All electronic is ok, so I guess the problem is...


Your Starter solenoid has gone bad on your starter or the gears on the starter or flywheel have a chiped gear.
It is most likely just the solenoid not engaging the starter though.
This can be found at your local parts store.

Mar 19, 2010 | 1990 Dodge Spirit

1 Answer

I have a automatic n/a 1990 300zx that shakes when i put in park


it is very common to have a bad fuel injector on those 300zx sounds like what it is.

Nov 01, 2009 | 1990 Nissan 300ZX

1 Answer

1990 silverado 5.7l struggles under load only when just off idle


With all you've done so far I'd have to say that I'd be tempted to take it to a good tranny shop just for sake of a diagnosis, which the mechanic can probably do free of charge, and a little drive down the road. Almost sounds like it's trying to take off in second gear or something. Other than that, the only thing that comes to mind at all is possible plugged exhaust, like catalytic converter.

May 07, 2009 | 1990 Chevrolet C1500

1 Answer

Bogs out when i accelerate


plug wires!? They go bad over time, but may still look ok from outside ... get an ohm meter and pull a wire and check ... more than 500 ohms per foot is no good..... Good high quality wires will be no more than 150 ohms per foot.

Apr 07, 2009 | 1990 Jeep Wrangler

2 Answers

Transmission not engaging


is it manual or automatic transmission?

Dec 18, 2008 | 1990 Toyota 4Runner

1 Answer

300zx 1990 automatic non turbo 3rd and up gears are gone


You need to do a transmission diagnostics. Its easy and will eliminate questions about the tranny and what's up with it including the complex sensors that inform the ECU how and when to shift. You'll find the transmission diagnostic process in the Transmission part of the online factory service manual.
Reading the indicator lights will give you a code and a diagnosis of the tranny issue. If your tranny checks out ok then you'll need to check the ECU. The manual also has a separate set of steps to diagnose the ECU. Since the ECU controls the shifting, if the tranny itself reports back as fine, the you'll likely have an ECU issue which should show up in the diagnostics and/or indicate what piece of equipment or sensor is causing the problem.
I would do these diagnostic procedures before replacing anything. Z32 parts are not cheap and you may be making unnecessary replacements. Since you already replaced the tranny and your problem persists I would advise going straight to the ECU iagnostics and identifying what is making it shift incorrectly.
Hope this helps.

Oct 14, 2008 | 1990 Nissan 300ZX

1 Answer

1991 nissan 240 sx


I HIT A BUMP AND FUEL PRESSURE WENT TO ZERO. IS THERE A WAY TO BY PASS THE ACCIDENT FUEL SHUNT?

Jul 29, 2008 | 1991 Nissan 240SX

1 Answer

Automatic choke stopped working- difficulty start- revs dropping low at stop


Quick and easy attempt to fix might be to try some fuel injector cleaner,the purple bottle stuff I put in, is only about $3 a bottle, and seems to eliminate similiar symptoms brought on by bad gas.

Jun 12, 2008 | 1990 Honda Accord

Not finding what you are looking for?
1990 Nissan 300ZX Logo

Related Topics:

36 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts

yadayada
yadayada

Level 3 Expert

76630 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

726 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Are you a Nissan Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...