Troubleshooting steps for common problems that cause engine hesitation, ... An
engine that hesitates, stumbles or misfires when accelerating or when it is under
A few misfires are to be expected under these conditions, and should cause no ...
or run rough, stumble when accelerating, waste gas and fail an emissions test.
A misfire under load complaint can usually be broken down into 2 categories.
The "soft" misfire, often called a surge, is commonly associated with fuel related ...
Hesitation is when your engine misfires, stumbles or lacks power when you ...
lean causing a misfire that produces a hesitation or stumble when accelerating or
If the engine is misfiring, it can cause all sorts of problems and leave you ... but
also because the throttle plate opens when accelerating causing ignition coil or ...
Oct 31, 2005 ... If it still misfires under acceleration or at higher speed with richer mixture, then it
has to be a spark problem. This is not what causes it to run bad ...
Engine misfires can be caused by a list of faults, but there are a few suspects that
... arrive only under load: It could as well show up at idle as when accelerating.
Feb 1, 2011 ... Diagnosing the cause of a misfire begins like any other complaint. .... from around
10 kV at idle to around 25 kV under hard acceleration, can ...
When driving under light acceleration, i rarely hear any sort of problem but under
heavy ... A rich condition can cause strange misfires too.
Engine misfire can have several distinct causes, or a combination of ... during
initial throttle application and occasionally during steady acceleration. ... A failing
or clogged injector or a weak fuel pump certainly could cause a misfire under