Question about 1993 Buick Century

1 Answer

High rpm shifting

I have a 91 nissan 240sx and i just replaced the alternator, and after the car had not been running for about 2 weeks, it is now shifting at 5grand and my overdrive is non-existant, where as before it was shifting at about 3/3500 and the overdrive was fine.The transmission fluid level is fine, and the car runs and idles well also. What is going on???

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 32 Answers

Try changing your transmission filter.then replace with new trans,fluid.

Posted on Jul 26, 2009


1 Suggested Answer

  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer


For this types of problem,there are few help inks to troubleshoot the problem.Click the link below to go through the troubleshooting procedure to resolve the issues :----Idles rough and quits when gas pedal is pressed less? idles rough?
--------------runs lean and idles rough?
-----------Car still runs Rough after tune up?
------------Idle flair is noticed on car? Rough idle? car will not idle? Erratic idle speed?
----------High rpm in neutral? Inconsistant high RPM in neutral?
------------Engine Backfires? Nissan stalls and bucks on Acceleration?

Nissan Pathfinder Backfires?
---------How to adjust rpm?
------------Engine cuts out at 3000 RPM?
----------This will help.Thanks.

Feb 17, 2012 | 1992 Nissan Pickup

1 Answer

Where can i find a diagram for a 1993 240sx nissan on the AC
this is for heating and AC. For all your other needs go here:

Jun 03, 2011 | 1993 Nissan 240SX

1 Answer

My 1991 240sx is at my local mechanics shop. He is getting abnormal transmission pressure readings and has not been able to diagnose the problem or has not tried hard enough. The care does not shift into...

The 240sx auto transmission will not shift from 1st to 2nd until going about 25 mph with gentle throttle (35mph with full throttle). I do not recall what engine RPM this corresponds to, but i know it always seemed high.

As for the hard shift two second, there is rectangular module that is inside the driver side fender next to the ignition coil that is sometimes unplugged to get a more "sporty" feel out of the automatic transmission. Check that plug and if it is unplugged, plug it back in.

Jun 15, 2010 | 1991 Nissan 240SX

2 Answers

I have a 91 240sx that is very hard to start when cold and you cant touch throttle or it will die

1) Does is crank / spin properly?. Good battery and connections?
2) Does it have high mileage? Check compression.
3) Fuel injected? Maybe cold start valve not working properly.

My best guess is check fuel delivery. Clean? filters, lines, good fuel pump?
Also ignition could be faulty. Good plugs, wires, cap and rotor?

Good luck!

Mar 26, 2010 | 1990 Nissan 240SX

1 Answer

Replace belts on a 92 nissan 240sx

loosen tensioners using a pry bar or equivalant and loosen tensioners on ac and alternator then tighten when replaceing. work on outside belt off fist and then inside belt off second. then install inside belt first and then outside belt. you will see a grooved hole where the bolt goes through the alternator to reduce tension.

May 24, 2009 | 1992 Nissan 240SX Fastback

2 Answers

1995 Nissan 240sx will not keep running.


you need to replace your battery.since the alternator is supposed t o charge the battery. y dont you start your vehicle, have it run for 1 hour or go on an hours drive, come back home, turn it off,after five minutes start the vehicle..see if it starts.if it does not, that means your battery is dead.

hope this helps
kind reagards

Mar 10, 2009 | 1995 Nissan 240SX

2 Answers

1990 240sx automatic tranny doesnt accelerate

auto transmission yes... need replace tranmission or repair. Go to mechanical, ask them.

Feb 11, 2009 | 1990 Nissan 240SX

Not finding what you are looking for?
1993 Buick Century Logo

141 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts


Level 3 Expert

80668 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides