What Causes a Rough Idle?

What Causes a Rough Idle?It is extremely frustrating when a vehicle begins to run poorly, especially when the issue arises out of nowhere. While many things can cause an engine to struggle run, most of them are relatively small and easy to repair. If you notice a rough idle be sure to get to the repair shop for engine diagnostics before the problem gets worse and more extensive engine repairs are needed. There's a good chance the problem could be caused by one of the following.

Bad Spark Plugs

The spark plugs are what generate the tiny explosion that ignites that air and fuel mixture to move the pistons inside the engine. If the spark plugs become dirty or corroded the engine could misfire, which will cause a rough idle, illuminate the check engine light and drain your fuel tank much quicker than normal.

Fuel Delivery Issue

A sputtering engine is often caused by a lack of fuel. There are several reasons gas may not make it to the combustion chamber. The most common reasons include a clogged fuel filter, malfunctioning fuel injection units or a broken fuel pump.

Failing Ignition Coils

The ignition coils are what generate the electricity needed to feed feed the spark plugs to ensure they're able to fire. If the coils fail the spark plugs will lay dormant. In many cars replacing ignition coil packs are simple to replace.

Clogged Air Filter

As mentioned it takes fuel and air to make a car run. If not enough oxygen can make it to the combustion chamber the vehicle will make up for it by burning extra gas. This can cause the engine to run very poorly and greatly decrease your RPMs.

Malfunctioning Alternator

The alternator provides electrical power to many systems during vehicle operation. The fuel injection system requires ample amounts of electricity so if it can't get it from the alternator it will struggle to perform, which can result in a rough idle, stalling or even prevent your car from starting depending on the condition of the alternator.

If you notice your car's engine is running a bit rough head to your local auto repair shop to prevent the problem from getting worse. To schedule superior engine diagnostics in Mills or Casper visit Chuck's Auto Repair Service. Our team of dedicated technicians will have your car running great in no time. At the first sign of car trouble call (307) 265-0209 to schedule expert auto repair in Casper!

Chucks Auto Repair Blog

Written and Published By MORBiZ

Warning Signs of Cooling System Trouble We Can Fix at Our Mills, WY Auto Shop
Common Symptoms of Suspension Trouble We Can Fix at Our Mills, WY Auto Shop
Common Signs of Alternator Trouble We Can Fix at Our Mills, WY Auto Shop
Why should I always stay current with oil changes?
Important Maintenance Tasks to Prevent Serious Engine Problems
Symptoms of Brake Failure that We Can Fix at Our Mills, WY Auto Shop
Signs of Clutch Trouble that We Can Fix at Our Mills, WY Auto Shop
Bad Driving Habits that Can Lead to Major Engine Trouble
Important Winter Maintenance Tasks We Can Complete at Our Mills, WY Auto Shop
Signs that Your Car Needs Transmission Service Now
What are common signs of cooling system failure?
Auto Maintenance to Get Ready for a Summertime Road Trip
Is my alternator bad?
What are warning signs of suspension trouble?
6 Ways that Oil Changes Keep Your Engine Healthy
7 Warning Signs of Failing Brakes
Transmission Specialist in Mills, WY
Tips for Driving Safely during the Wintertime
7 Winter Auto Maintenance Tasks for Better Safety
What car problems trigger the check engine light?
Simple Tips to Boost MPGs
What are common signs of a transmission issue?
Auto Maintenance Tasks to Achieve Optimal Performance
Expert Auto Repair in Mills, WY
What are common symptoms of alternator trouble?
How do I know if my Car Needs New Shocks or Struts
Common Auto Electric Problems
Signs it is Time for a Tune Up
Top Signs of Brake Trouble
What's Leaking From My Car?
Does My Car Need Cooling System Repair?
10 Tips for Safer Winter Driving
Three Problems that Diagnosed by Noise
4 Tips for Enhanced Fuel Efficiency
Does My Car Really Need an Oil Change Every 3,000 Miles?
Strange Smells that Mean it is Time for Auto Repair
Top Signs of Major Engine Trouble
10 Problems that Decrease MPGs
Top General Symptoms of Car Trouble
What Causes a Rough Idle?
Customer Reviews of Chuck's Auto Repair Service in Mills, WY
Four Ways to Maintain a Safe and Reliable Car
Most Common Reasons Your Car Won't Start
Does My Car Have An Exhaust Leak?
Top Causes of a Rough Engine Idle
How Regular Auto Maintenance Can Save You Money?
Don't Put off Brake Repair!
Tips to Avoid Manual Transmission Damage
5 Sounds that Indicate a Need for Auto Repair
When Should I get a Tune Up?
Top Signs it is Time for Engine Repair
Winter Weather and Auto Maintenance
Top Three Signs Your Car Needs Power Steering Repair
3 Important Reasons to Never Skip Oil Changes
Why is the check engine light on?
4 Symptoms of Failing Suspension
Is it time for Cooling System or Radiator Repair?
Does Your Car Need Brake Repair? 5 Signs that Scream Yes!
5 Signs it is Time for Transmission Repair