Engine Diagnostics & Troubleshooting

Take the guesswork out of auto repair with our expert Engine Diagnostics and Troubleshooting guides. Whether you’re facing a stubborn “Check Engine” light, a mysterious “crank but no start” condition, or an intermittent rough idle, we provide the step-by-step procedures to find the root cause. Our resources cover how to use OBD-II scanners, interpret live data PIDs, and perform manual tests with multimeters and vacuum gauges. Learn to translate complex trouble codes into actionable repairs and master the logic of professional engine diagnostics to save time and money in the garage.

Mechanical Engine Misfires – What Are They – How To Find Them

02/27/2024

Mechanical engine misfires, will not go away by themselves, and will only get worse over time. So, mechanical engine misfires, can be serious enough to cause, noticeable vibrations or even engine backfires. Unlike air to […]

Gas Getting Into Oil – What Can Cause This To Happen, And Why

02/22/2024

When changing your oil, one of the worst things to notice, is the smell of gas in the oil. Because, it means that gas, is somehow making its way into your engine’s oil. However, it […]

Crankshaft – Camshaft Position Sensor – Testing The Easy Way

02/19/2024

When a Crankshaft – Camshaft Position Sensor goes BAD, your vehicle will not start. Distributorless Ignition Systems (DIS) require a Crankshaft Position Sensor (CKP), and sometimes a Camshaft Position Sensor (CMP). So, the main difference […]

Rear Main Rope Seal – Alternatives For Many Older Engines

02/09/2024

Firstly, using a rear main rope seal, is almost a thing of the past. And, has greatly diminished in use. So, the rear main rope seal worked well, in its time. Only, as long as […]

Coolant Mixed With Oil – In The Lubrication System – Cleaning Tips

02/07/2024

Professional installers offer the following information on, cleaning coolant mixed with oil, in the lubrication system. However, the following information, applies only to certain situations. So, it is not applicable for all engines, that have […]

Bubble Test – Used In Conjunction, With A Cylinder Leak Down Test

02/06/2024

So, to determine the health of a head gasket, between two cylinders, try doing a bubble test. If you believe you have a leak, but just cannot find it, doing a bubble test may be […]

Fuel Pump Related No Start Problems – What Should You Check

02/04/2024

The fuel pump runs continuously while your engine is running, delivering high-pressure fuel, to the fuel rail and injectors. The fuel pump keeps cool by staying submerged in fuel, or else it would overheat. So, […]

Abnormal Exhaust Noise, Common On 02-05 Ford 6.0L Diesels

01/28/2024

Abnormal exhaust noise, on 02-05 Ford 6.0L Diesel Engines, is a growing concern, as these engines become older. Consequently, many of these engines would fail inspections. Because, of exhaust noise. So, the source of this […]

Valve Lash – Getting All The Facts For Setting And Adjustment

01/26/2024

The term “valve lash” is often used when talking about, valve train adjustment. A valve lifter follows the contour of the camshaft lobe, and transfers that motion to open and close the valves. (sometimes referred […]

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