Question about 1997 Buick LeSabre

1 Answer

1997 buick lesabre relay prob

My speed gauge one day stopped working and went all the way to 0mph. then all of the sudden my car will not shift gears. it drives in first only. when i open the relay box and take out the fuses and put them back in and then i drive my car and it will start working again. After a few mins it will stop working. I had a test done on it for the code and it is telling me p0740 can someone please helP! i called a mech and was told to change the speeddometer relay fuse first then if that doesnt work change the TCC

Posted by on

  • lorie_calder Mar 01, 2009

    So when my speed sensor went out thats what is causing the problem with my car not shifting gears right. I know theres nothing wrong with the transmission i know. so the speed sensor is whats causing all this problem?

  • Anonymous May 02, 2009

    i have a 97 buick lesabre and it drives fine in reverse but pulling out its real slow!!!!!!

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 4,669 Answers

Try replacing the vehicle speed sensor. I don't think it has a speedo relay and the Torque Converter Clutch would not cause this problem.

Posted on Mar 01, 2009

  • Clint Smock
    Clint Smock Mar 01, 2009

    Yes, If the powertrain control module doesn't know how fast you are going it won't ground the shift solenoids that change the gears. The whole problem is the vehicle speed sensor.

  • truman swinyer Nov 07, 2011

    where is a clutch circuit

×

1 Suggested Answer

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.
the service is completely free 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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Speed odometer reading went crazy, later while in drive jerked as if to shift gears. 2000 Buick lesabre


Do you have an engine management light on dash if so use obd reader to scan fault.

Mar 15, 2016 | Buick Cars & Trucks

1 Answer

Buick century 98 custom My girlfriends turn signals stopped working, they stopped flashing, then the hazard lights went out. Her mechanic said it is the daytime running module. Where can I price this out,...


intermidiate switch's are faulty in most LeSabres, it controls all your settings where as your day time running light modual only puts low voltage to your headlights, thats all. i had similar issues in my camaro, replaced the switch and all is better now.

Jun 08, 2010 | 1997 Buick LeSabre

1 Answer

Buick LeSabre A/C


i had this problem; turned out to be the hi speed relay
under the hood, in the area with all the relays. there is a
cover which comes off, and you will see the relay,

Jun 25, 2008 | 1997 Buick LeSabre

Not finding what you are looking for?
1997 Buick LeSabre Logo

Related Topics:

472 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts

yadayada
yadayada

Level 3 Expert

71525 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22059 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7029 Answers

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

Answer questions

Manuals & User Guides

Loading...