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Old 11-30-2005, 09:41 AM
boostaddct boostaddct is offline
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No Start, No Spark?

I just got done doing a head gasket job on my 97 Malibu 3.1 and now it won't start. Here is exactly what I replaced;
-all gaskets included in a head set, new plugs and wires, O2 sensor, fuel filter, PCV valve, air filter, oil and filter, trans fluid and filter, coolant flush and fill.

It did run before I pulled it apart but the head gasket was blown and it was smoking pretty badly, but occasionally it did not want to start.

I checked all the harness connections and everything is plugged in. The battery was pretty old and didnt really hold a charge so I replaced that, but obviously that didnt help it.

So here is the deal, it cranks but I have no spark at any of the plugs. Here is what I have done so far: I tested the coil packs and they are fine and I replaced the ignition control module. There are no blown fuses in the underhood box and the interior fuse panels.

Here are some other possible things I think might be wrong, but give me your input/advice.
1. Cam position sensor bad
2. Crank position sensor bad
3. Relay is bad
4. Passlock system-I dont think it is this though because the light does not flash and I thought this system cut fuel, not spark.

What else might cause me to have no spark? I would really like to get this solved as winter is here and I dont want to drive my Lexus when the snow falls so I have to get this car running. Are there any other ideas on what I can test or what else might be wrong. It sounds like it is cranking normal, but no spark!!This is so frustrating. I think it is just some fluke that something just went out at the same time I did the head gaskets. I dont see anything I would have done that would affect the spark. BTW I do have fuel. Thanks
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