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Tag Archives: Misfire

Diagnose Engine Misfire (Part 3):Ignition And Compression Misfires

Diagnose Engine Misfire (Part 3)

Read Diagnose Engine Misfire (Part 2) IGNITION AND COMPRESSION MISFIRES Once you remove the spark plug, in case you also have isolated it to a single cylinder and have a misfire, the cause will be obvious. If the insulator of the plug is broken or cracked, then you have found the issue. Check for plug boots and wire damage, if the plug is wet but appears to be OK. End to end, using ohmmeter to measure the resistance of plug …

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Diagnose Engine Misfire (Part 2): Steady Misfire

Steady Misfire

Read previous Diagnose Engine Misfire (Part 1) FINDING THE CAUSE OF A STEADY OR CONTINUOUS MISFIRE The first step to do in diagnosing the steady misfire problem is to isolate the misfiring cylinder. While the engine is idle, one at a time disconnect each of the spark plug wires temporarily, this is an old-fashioned way to find a weak cylinder, although this is an old-fashioned way but sometimes it working. The weak cylinder has been pinpointed if there is no …

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Diagnose Engine Stalling Problem

Engine Stall

It can be annoying when we get the vehicle engine stalls very often. And for no apparent reason it can happen while you are driving. Temperature related is most thing causing the stalling problems, especially on cold weather it can happen often, it also can happen when the engine started on cold. After Starting The Engine Stalls (Cold Quickly) The engine had too much air and not enough getting fuel is common cause the engine stalling. To start the cold …

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Diagnose Engine Misfire (Part 1)

Diagnose Engine Misfire

Depending on the cause, a common driveability issue is a misfire that is not easily to diagnosed. It is hard to miss if a misfiring cylinder is in a four-cylinder engine. It’s like a horse that trying to run on three legs if the engine losing a power output about 25%. At idle engine might be shake and and the engine vibrations can be felt throughout the vehicle and in the steering wheel. Engine might stall at idle or hard …

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