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No spark

Tiny
ANTHONY AUTOREPAIR
  • MEMBER
  • 1997 BUICK PARK AVENUE
  • 3.8L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 110,963 MILES
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?
Thursday, June 9th, 2016 AT 6:15 AM

9 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
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.
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Thursday, June 9th, 2016 AT 6:40 AM
Tiny
ANTHONY AUTOREPAIR
  • MEMBER
  • 7 POSTS
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.
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Thursday, June 9th, 2016 AT 6:55 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
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.
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-1
Thursday, June 9th, 2016 AT 6:59 AM
Tiny
ANTHONY AUTOREPAIR
  • MEMBER
  • 7 POSTS
Yes tried what was in picture with door locks the owner does not have a second key or the remote unock deal.
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Thursday, June 9th, 2016 AT 7:07 AM
Tiny
ANTHONY AUTOREPAIR
  • MEMBER
  • 7 POSTS
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.
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Thursday, June 9th, 2016 AT 7:13 AM
Tiny
ANTHONY AUTOREPAIR
  • MEMBER
  • 7 POSTS
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.
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Thursday, June 9th, 2016 AT 7:15 AM
Tiny
ANTHONY AUTOREPAIR
  • MEMBER
  • 7 POSTS
The scanner is a 74.00 one digital obd2 car reader Innova 3030.
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Thursday, June 9th, 2016 AT 7:21 AM
Tiny
ANTHONY AUTOREPAIR
  • MEMBER
  • 7 POSTS
It says unknown driver how do you reset that?
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Thursday, June 9th, 2016 AT 8:56 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
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
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Saturday, June 11th, 2016 AT 2:14 PM

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