About a 78 bonnevile 350 plugs and wires are goud getting

Asked by Mar 12, 2017 at 07:21 PM about the 1978 Pontiac Bonneville

Question type: General

78 Bonneville 350 won't start getting fuel plugs and
wires are good no alarm time might be allittle off
but not enough to not start what could it be please
help me good running car for the most part never
had any problem

3 Answers

74,645

Sounds like you are not getting spark, check for spark. Check the distributor rotor, it may be burnt threw the center grounding out the ignition. You would see a carbon spot on the underneath side of the rotor in the center. Also It could be the coil, ignition control module, or the coil pick up that can be tested at an auto parts store. The coil puck up you gently pull on the wires to see if there broken or not. All these components are under the distributor cap, except the coil which is on top of the distributor cap. Check the distributor cap out closely also.

Best Answer Mark helpful
102,005

How about the spark output at the plugs, nice bright blue spark? Next is the compression, I would do a dry then wet and compair the two if there is a big jump in the readings then the right rings are most likely at fault.

45

Make sure #1 cylinder is on compression stroke when timing marks align and the rotor is pointing to #1.If you had distributor out may be off 180 degrees

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