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Old 05-08-2007, 08:55 PM   #1
shadetree11_22
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Chevy Cavalier Stumper

I like to work on my own cars a lot. I usually know my limitations, but may be over my head this time. Did a head gasket on my daughters Cavalier 2.2. Didn't run right after I was done, but don't know how it was running before I started.

My mechanic is stumped as to why no. 2 cylinder will not fire. It has fuel and spark.

Had head resurfaced before putting on new head gasket.
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Old 05-08-2007, 09:59 PM   #2
TexTruck
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Well I'd love to offer some advice on that one as I just did the same job myself. But I haven't a clue. There maybe a guy here who might have an answer. Hopefully he'll read this one. This I'm sure you've covered but have you ensured that your plug wires are put back on in the right order??
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Old 05-09-2007, 01:31 AM   #3
Wally
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Coolant, heat and friction are a lethal combination for engine rings and bearings.

So what is the compression reading on the cylinders?

Worries me that a mechanic doesn't know the cause of the problem; perhaps somebody better qualified is the go.
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Old 05-09-2007, 06:21 PM   #4
shadetree11_22
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Had new plugs and plug wires installed. Wires were traced to the appropriate spot on the coil pack. Only one cylindar is misfiring. Doesn't the ECM cotrol two at a time? Could it be caused by a worn cam or mistake in installing a push rod? It's a 1993 2.2 motor. Compression (cold) is 125, 100, 100, 125 in that order.

Doesn't the ECM operate by opening and closing the ground side of the circuit as opposed to the hot side. If that is the case, could the injector be grounded out somewhere besides the ECM causing the injector to stay open and flood the cylinder.

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Old 05-09-2007, 10:57 PM   #5
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Fairly low pressures you have there. Did you do a wet test? Are you sure the cam timing is correct?
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Old 05-10-2007, 03:17 AM   #6
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You need to know the CR, rod length, stroke and inlet closing angle.
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Old 05-10-2007, 04:32 PM   #7
shadetree11_22
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The compression test was a dry test.
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