Engine Stalling Issues – Suddenly, You Question Your Vehicle’s Reliability

Engine Stalling Issues - Suddenly, You Question Your Vehicle’s Reliability
Engine Stalling Issues - Suddenly, You Question Your Vehicle’s Reliability

It’s incredibly frustrating to have engine stalling issues; as it always seems to happen at the worst possible time.

So, diagnosing the cause of engine stalling issues, can seem like a complicated job.

But, the truth is that, all modern engines operate on the same basic principals.

That means that, they all share the same common systems, which could result in engine stalling issues.

When Your Engine Stalls; Immediately That Blind Trust You Have In Your Vehicle Disappears:

  • Will it happen again?
  • What caused it?
  • Do you need to get it looked at?
  • Is it still safe to drive?
  • What is this going to cost?

Suddenly, you question your vehicle’s reliability.

Diagnosing engine stalling issues, often takes more thought; than actual work with your hands. So, time spent analyzing engine stalling issues; is more effective than having wrenches fly. Therefore, taking your time doing proper diagnostics; will pay off in the end.

Analyzing Engine Stalling Issues
Analyzing Engine Stalling Issues

It’s unquestionably a nerve-wracking experience. And, in some cases, it’s also downright frightening. But, what do you do? The very first thing you should do as soon as you have any indication of a; potential stall or other vehicle trouble is; to get over to the side of the road.

Taking Steps To Find The Problem Yourself


Before attempting any diagnosis, it’s a good idea to do a visual inspection of the engine.

Visual Inspection Of The Engine
Visual Inspection Of The Engine
  • Is there a wire loose ?
  • Did a vacuum line fall off ?

Do not look for a complicated solution, when it may only be a simple problem.


Check Diagnostic Trouble Codes

On modern vehicles, the powertrain control module (PCM) stores a diagnostic trouble code (DTC); when it senses a problem with one of the on board systems. So, it turns on the check engine light.

Check Diagnostic Trouble Codes
Check Diagnostic Trouble Codes

These codes help narrow things down and indicate, where to start your diagnostic process. So, once you’ve retrieved the code, follow the manufacturer’s given diagnostic procedures.


A Faulty Sensor or Electrical Component

Modern engines rely heavily on, electrical sensors to function properly. So, when an electrical component isn’t working properly; the engine’s computer isn’t receiving the necessary information; to keep the engine running. Consequently, if an electrical component is to blame; the car’s “check engine” light will be illuminated.

A Faulty Sensor or Electrical Component
A Faulty Sensor or Electrical Component

So, a good first step to finding out what might be to blame is; pop the hood and check all the electrical connectors. Consequently, the problem might be as simple as a; sensor that has become unplugged. But, if that’s not the case you may have a sensor that needs replacing.


Temperature Related Problems

Fortunately, with enough knowledge, the problem can be diagnosed and fixed. Stalling problems are often temperature related and more apt to occur during cold weather.

Temperature Related Problems
Temperature Related Problems

This kind of stalling problem often means; the engine is not getting enough fuel and/or too much air. That’s why, a cold engine needs a fairly rich fuel mixture to start; and to idle smoothly, while it warms up.

Any Of The Following; Could Cause Or Contribute To This Kind Of Engine Stalling Issue:

  • An engine vacuum leak
  • A dirty or defective airflow sensor
  • A defective idle speed control system
  • A faulty coolant sensor
  • A faulty air temperature sensor
  • A bad Manifold Absolute Pressure (MAP) sensor
  • Low engine compression
  • Worn or fouled spark plugs
  • Bad gas


So, this is just the tip of the iceberg; when it comes to testing and repairing engine stalling issues. Finally, with modern, computer controlled vehicles; there are countless reasons an engine may stall.

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