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lt1 idle

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Old Jun 8, 2013 | 03:44 PM
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Default lt1 idle

My idle is a bit rough. Noticeable. Is that normal for an lt1?
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Old Jun 8, 2013 | 05:32 PM
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mine is extremely smooth, though the injectors are loud and noticible. i'll take a video this evening and post it up.
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Old Jun 8, 2013 | 07:43 PM
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Thanks. It feels like a small thud if that makes sense. Smooth but a normal paced thud. Not like any miss I've ever had. Maybe weak opti spark?
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Old Jun 8, 2013 | 07:45 PM
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i'd start with the plugs, make sure they are all gapped right.
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Old Jun 8, 2013 | 08:04 PM
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I've had my car over 4 years now and it has idled a little rough from day one. At first I was worried and changed plugs and wires and had the engine checked over by my mechanic. Everything checked out fine and has run strong so after a while I just stooped worrying and just enjoyed. Check those things that could effect idle and (change if needed) if all is well drive it until some other symptom shows up.
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Old Jun 9, 2013 | 03:02 AM
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Fix the vacuum leak and your idle will become smoooooooth...

Vacuum leaks can be very subtle and in non-obvious places. For example, an EGR valve that's stuck open will do it.
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