Buick Lesabre Stalling While Driving: Are There Any Fixes?

Having a problem with your lovely Buick Lesabre all of a sudden? Well, I was in your position at some point too. Lesabre is a wonderful car but it’s not free from any problems. Especially the stalling issues.

So, what are the reasons behind buick lesabre stalling while driving?

The first and most common reason is the crankshaft or sensor failure. In addition to that, the fuel pump system error can also make your Buick stall. Furthermore, damaged alternator and battery cables can also be some of the reasons. In order to solve these issues, there is some troubleshooting.

Care to learn more about what you can do for your beloved Buick?

Then, hop right in, and let me take you on the problem-solving journey!

5 Possible Causes for Your Buick Lesabre to Stall While Driving

Truth be told, there can be multiple reasons why your Buick Lesabre stalls while driving. Because there are dozens of Buick models such as 1995, 1998, 2000, 2001, 2005, etc. So, it’s not that simple to diagnose the actual cause.

Source: CarGurus

However, there are some reasons that can be easily identified. Just like knowing why your car won’t start after stereo installation! So, knowing the cause comes from a proper diagnosis.

To ease your pain, even more, I’ll mention the specific Buick model here and there. That way, you’ll know clearly about that particular model’s problem and respective solution.

However, if you customize your LeSabre like this one there can be issues if not done right.

I think you got my points so far. Let’s not stall the discussion further and look at the 4 probable causes.

Reason 1 of 4: Crankshaft Failure

As mentioned in the introductory text, this sensor problem is prevalent in most Buick models. If your 1995 Buick LeSabre stalls while driving, then this is probably the cause.

You’ll notice some odd issues such as the abrupt power disconnection, and warning light signals. These are some of the symptoms to know that your crank sensor has gone bad.

So, what can you do in this type of situation? Let’s see what can be the possible solution for this issue.


Often users misdiagnose this particular issue. They think it’s the cam sensor that’s causing such ruckus. However, that is completely the wrong way to think. It can be the sensor or it can be the whole crankshaft.

Before you change any of your car parts, you need to understand the problem. Otherwise, you might do more harm to your car than good. 

Now, let’s actually solve it. If your crank sensor is bust, then you’ll need a new crankshaft. There’s actually no other way around it.

Source: CarTreatments.com

Along with the sensor, you’ll have to change the timing chain and some associated gears. If you change all of these components, you should be able to drive your car smoothly!

Talking about sensors, it can be tough to find the right sensor for your crankshaft.
In that case, you can try out these compatible sensors with your Buick LeSabre.

Reason 2 of 4: Damaged Plastic Intake Gasket

Let me tell you beforehand. This cause is not quite as common as the others. Why is that? Because only a handful of 1998 Buick Lesabre stalls while driving due to this issue. Still, if you have a 1998 model, this one’s for you.

When you mix something like antifreeze with your oil, you’ll notice the stalling. Because it leads to severe damage to your plastic intake gasket. 

So, how to fix this issue?


This solution is similar to the previous one. Yes, you guessed it right. You’ll need to change or replace your intake gasket with a new one. 

The most upsetting thing is the hefty cost. That’s why you can try all by yourself to set up your intake gasket with FEL-PRO MS 98014 T Intake Manifold Gasket Set. 

If you’re confused then check out this detailed video guide. It helped me a lot and I hope it’ll help you too.

But if you decide to take it to a mechanic then you’ll have to pay around $700 to fix the gasket. That’s quite the expense. However, if you’re well-versed with car mechanics, then you can save the servicing fee.

Reason 3 of 4: Fuel Pump Problem 

Your Buick might not have problems similar to honda accord making grinding noise while starting. 

However, the Buick has come with severe complaints about the fuel pump system. A bad fuel pump can be the most dangerous thing for your car. 

Source: YouTube

Your fuel pump relays the pressurized fuel to the rails. So, if the fuel pump fails to do its duty, it can choke your engine from time to time. Consequently, your engine will start and then lose power.

So, how can you solve this difficult issue?


Your fuel pump does not fall under constant monitoring under the engine. So, you’ll need to go through the whole troubleshooting process manually.

First, turn the key on and listen for any noise. If you don’t hear anything, then you can be sure that the fuel pump is not in mint condition. But you can do an extra step to be absolutely sure.

You can borrow an ear to be as thorough as possible. If the sound is still not heard, there’s no denying it anymore.

In such a case, you can get a new fuel pump system for your Buick Lesabre. I know you don’t want your car to suffer anymore. 

That’s why I’ve spoken to some veterans who own this marvelous ride. They all had to change the fuel pump on their ride at some point. So, here are the recommendations-

FAERSI Fuel Pump Assembly ReplaceBuy Today!
A ABIGAIL Fuel Pump A3518M for LesabreBuy Today!
TOPSCOPE FP3518M – Fuel Pump Module Assembly E3518MBuy Today!

After replacing the fuel system, you should not have any further stalling issues. Still, if you want to know about the last reason, go ahead.

Reason 4 of 4: MAF Sensor Failure

Last but not least, another sensor failure problem. 2001 Buick LeSabre stalling problem is majorly caused by this particular reason. But that does not mean other Buick Lesabre models can’t fall victim to it.

Just like the crank sensor, the MAF sensor is equally important for your car. It can get affected by debris or other conditions. 

How do I detect the problem with the MAF sensor? By getting a proper diagnosis by locating the trouble codes Buick LeSabre P0101 or P0102.

Now, what is the solution for a faulty Buick MAF sensor?


So, your Buick Lesabre cuts off while driving because of a bad MAF sensor. If the mass airflow sensor is not severely damaged, you can repair it from a car shop. You can also clean it up properly yourself at home to eliminate the stalling.

If you are planning to do so, remember to use caution. Because the sensor is quite sensitive. You would not want that to get damaged by any means.

After cleaning it up thoroughly, you’ll get a good response from your LeSabre. It hopefully would not stall anymore!


Why Does My 2004 Buick Lesabre Stall While Driving?

One possible reason for your 2004 Buick to stall is the crank sensor. However, it’s tough to identify it because the O2 sensor and MAF code don’t show symptoms. Still, you can manually check the sensor and find out. Another reason for stalling is the ignition module. So, check that too.

Why Does MY Buick Turn Off While Driving?

The most frequent reason for Buick turning off is a faulty crankshaft or sensor. Often, that’s the main reason for all the Buick models to stall without warning. But, there are other reasons too such as fuel system error, faulty ignition switch, etc. So, you need to diagnose the problem carefully.

Can Bad Battery Cable Cause My Buick to Shut Down?

Yes, your bad battery cable can cause your Buick to suddenly shut down on the road. Your cable mostly gets damaged due to debris and dust. So, check the battery ports thoroughly to understand the condition. Furthermore, inspect the ground wires for rust and corrosion to identify the problem.


I hope you’re now fully aware of the reasons for your Buick Lesabre stalling while driving

By getting to know about the solutions, you can fix any problems without any difficulty.

So, what’s stopping you now! Just find out your problem and get to work.

Robert Lozano

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