The integrity of the exhaust emission system in a passenger vehicle can best be maintained by monitoring its performance continuously on board the vehicle. It is with the intent of monitoring emission ...

A misfire means that a cylinder in your engine isn’t producing the power it should because the air-fuel mixture in it didn’t properly ignite and burn. It could be an intermittent problem — meaning it ...

Just like spark plugs, ignition coils can wear down and become faulty over time. There are many common signs that an ignition coil is getting bad, but one obvious sign is an engine misfire, typically ...

PACCAR has been granted a patent for a diagnostic method to identify misfire conditions in individual engine cylinders of turbocharged diesel engines. The method involves using pressure and crankshaft ...

This paper describes the development of diagnostic algorithms for the detection of misfiring cylinders in an internal combustion engine. The algorithms are applied to a measurement of engine angular ...

Q: I have a 2000 Nissan Frontier truck. It has 40,000 miles and I have been the only owner. It misfires randomly. It has stalled once at a stop sign. There are no ‘check engine’ lights on. I took it ...

Paul, I bought a 2004 Jaguar S Type from Japan but the engine is misfiring. The service bay mechanic suggested that we replace the spark plugs and I bought six of them from a Bosch shop but the car ...

A check engine light can mean serious engine trouble, such as a misfire that can cause extensive and expensive damage if not resolved, or it might just mean you forgot to tighten your gas cap after ...

The PCV valve can fail due to age or premature blockage from oil with sludge. Hi Paul, I own a 2004 Ford Explorer which has been running well until recently when the engine started misfiring and ...