Common Car Maintenance Mistake Owners Make When Diagnosing Their Car’s Engine Problems
A Common Novice Mechanic Mistake
We’ve all been there at some point in our vehicle-owning lives—our car or truck is not running quite as good as it used to, so we decide to diagnosis the problem of poor engine performance by buying a Haynes or similar auto repair manual at the local chain auto parts store and take a stab at diagnosing what our engine problem could be.
Most manuals will have a rather abbreviated trouble-shooting section, but that does not deter us as we have a basic understanding of how an engine operates with fuel, spark, compression, and timing.