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

72,225

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
96,935

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

Your Answer

Add photo

Related Questions

Bonneville

Looking for a Used Bonneville in your area?

CarGurus has 7 nationwide Bonneville listings starting at $5,950.

Postal Code:

Search Pontiac Bonneville Questions

Pontiac Bonneville Experts

#1 ticklemedaly
ticklemedaly
Reputation 390
#2 Js08016
Js08016
Reputation 360
#2 dandyoun
dandyoun
Reputation 360
View All

Related Models For Sale

Used Pontiac Grand Prix
5 Great Deals out of 75 listings starting at $2,400
Used Chevrolet Impala
63 Great Deals out of 920 listings starting at $799
Used Chevrolet Monte Carlo
14 listings starting at $6,995
Used Dodge Charger
90 Great Deals out of 904 listings starting at $2,000
Used Pontiac Grand Am
32 listings starting at $3,960
Used Pontiac Firebird
19 listings starting at $16,999
Used Chevrolet Camaro
777 listings starting at $2,500
Used Ford Mustang
6 Great Deals out of 1,263 listings starting at $1,000
Used Chevrolet Malibu
121 Great Deals out of 2,342 listings starting at $2,966
Used Buick LeSabre
16 listings starting at $2,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.