no spark

1997 BUICK PARK AVENUE
110,963 MILES • 3.8L • 6 CYL • FWD • AUTOMATIC
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ANTHONY AUTOREPAIR
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we have changed the head gaskets then the timing chain, camshaft sensor, crankshaft sensor, the coils and the ignition relay. There is not spark also made sure battery is fully charge what could we be missing that is keeping from having spark?
Jun 9, 2016 at 6:15 AM
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HMAC300
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I am assuming battery has been tested for load test and is in good shape. try another key if you have one not a new one, then make sure the battery terminal ends are clean with no corrosion. Finally try resetting security system there are two different systems on this car another key ois one option and other is in picture. try that as well.
Jun 9, 2016 at 6:40 AM
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ANTHONY AUTOREPAIR
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the battery is brand new and the termials are clean doing the security thing did not help. we have also usded a obd2 reader on it and it shows no codes, but lights up the yellow light on reader.
Jun 9, 2016 at 6:55 AM
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HMAC300
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did you try what I sent in picture? there are two different systems on this car security wise so I do not know what you have I have sent instructions for both. is the scanner a auto parts one or professional one? you may a different key from owner if they have one.
Jun 9, 2016 at 6:59 AM
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ANTHONY AUTOREPAIR
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yes tried what was in picture with door locks the owner does not have a second key or the remote unock deal.
Jun 9, 2016 at 7:07 AM
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ANTHONY AUTOREPAIR
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the only time the security light is on is when the ignition is off and all it does is flash when you turn the key on the light goes out all the way.
Jun 9, 2016 at 7:13 AM
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ANTHONY AUTOREPAIR
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not sure if this will help, but before we did the timing it had spark once we were done with the timing there has been no spark.
Jun 9, 2016 at 7:15 AM
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ANTHONY AUTOREPAIR
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The scanner is a 74.00 one digital obd2 car reader Innova 3030.
Jun 9, 2016 at 7:21 AM
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ANTHONY AUTOREPAIR
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it says unknown driver how do you reset that?
Jun 9, 2016 at 8:56 AM
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STRAILER
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Can you check the oil pressure sender, there is a safety that when the oil pressure drops it cuts the engine off through the ignition system, please double check this sensor.

Let me know what you find.

Best, Ken
Jun 11, 2016 at 2:14 PM