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Poor Performance

Welcome to the Poor Performance hub. A sluggish engine can be frustrating and dangerous. I help you troubleshoot hesitation, stumbling, and loss of power. We cover common causes like clogged filters, vacuum leaks, and poor fuel quality. Learn how to identify the “flat spots” in your acceleration. My 40 years of experience will help you find the root cause of your engine’s laziness. These guides provide the professional steps to restore your engine’s throttle response.

Reducing Fuel Consumption - Keep the Money, in Your Pocket
Poor Performance

Reducing Fuel Consumption – Keep More Money, in Your Pocket

04/28/2025
Reducing fuel consumption is a big concern today. All because of the constant increase, in the cost of fuel. However, proactive steps can be taken, by paying attention to your driving habits, and following a […]
Hard Starting Engine: Cold, Hot, Both or Just After Refueling
Poor Performance

Hard Starting Engine: Cold, Hot, Both or Just After Refueling

02/26/2025
So, a hard starting engine, is not a good sign and can be difficult to diagnose. But, the exact moment in the process of starting, can tell you a lot about, what may be going […]
Rough Idling Engine: What Does It Mean, How To Fix And Test It
Poor Performance

Rough Idling Engine: What Does It Mean, How To Fix And Test It

02/24/2025
So, a rough idling engine, is a common problem, of which the exact cause, can be difficult to find. Also, the reasons for a rough idling engine can vary. With some being cheap easy fixes, […]
Spark Plug Health The Key to Optimal Engine Performance
Ignition Systems

Spark Plug Health Is Directly Linked, To Your Engines Performance

12/30/2024
Spark plug health, on today’s engines is very important, and if ignored, can cause serious problems. So, it stands to reason that, weak or bad spark plugs, are a big cause of concern. Spark plug health […]
Engine Misfire Issues
Poor Performance

Engine Misfire Issues: Causes, Symptoms And Solutions

12/10/2024
Engine misfire issues, will always cause your engine performance to suffer. Because, they affect fuel economy, emissions and idle quality. In addition, when a misfiring vehicle, is subjected to an emissions test, it will usually fail. […]
Comparing Spark Plug Color For A Quick Diagnosis
Ignition Systems

Spark Plug Color: Learn The Symptoms And Recommendations

11/23/2024
A visual inspection of the spark plug color will display symptoms, and conditions of what’s happening inside your engine. So, the experienced technician, can analyze the plugs, and track down the root cause of many […]
Engine Misfire And Rough Idle When Cold
Poor Performance

Rough Engine Idle and Misfires When Cold: GM V8 Engines

11/21/2024
Rough Engine Idle and Misfires When Cold on GM 4.8L, 5.3L, 6.0L engines is common, and getting harder to diagnose. As, GM V8 engines are prone to a rough idle, and engine misfire when cold. […]
Showing High Engine Idle On Tach
Poor Performance

High Engine Idle: Causes, Diagnosis, and Solutions

11/01/2024
So, what can cause, abnormally high engine idle speeds. Dealing with idle issues, can be quite frustrating, until you identify the cause of the problem. Once you do that, figuring out the correct solution to […]
Comparing New And Old Spark Plug
Ignition Systems

Spark Plug Problems: Function, Failure And Replacement

10/03/2024
All spark plugs wear out as they age and at some point, will cause spark plug problems. Because, after enduring abuse for thousands of miles, you really can’t expect them to last forever. Good spark […]

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