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06 1.4 Vauxhall Astra Petrol misfiring?
Hi,
My 06 Astra was misfiring when idle and struggling up hills that it normally goes up fine. The Rev count was going up and down on its own when idle. read online that changing the spark plugs might resolve. Have changed the spark plugs & it is still misfiring slightly, can still hear the juddering and slight vibrations through the steering wheel. I am thinking of changing the coil pack, does anyone think this could resolve it? It also feels different to drive after changing the spark plugs, is this normal? As in the engine sounds louder, it does feel as though it has power back from changing the spark plugs and the rev count isn't moving on it's own but it definitely feels as though it is driving different to usual.
It starts up fine, engine doesn't cut out at all, no excessive smoke from the exhaust.
Cheers,
2 Answers
- Anonymous4 years ago
Search for Vacuum leaks - various methods
https://www.youtube.com/results?search_query=searc...
Check for Ignition Voltage Leaks
Inspect the ignition wires in the dark with the engine running - look for arcing to ground.
Drop test the coils
Loosen the screws on each coil. With the engine idling, pull one coil at a time. If you pull one that does not make the idle rougher, it may be the culprit. Inspect the wires there for crack/voltage leak.
