I have a 95 Buick Roadmaster with a lt1 motor the car started sputting very bad with a strong misfire from start to 30mph anything over 30 mph it seems like the car would run ok not it it alot worse

Asked by Aug 30, 2015 at 07:10 PM about the 1995 Buick Roadmaster 4 Dr STD Sedan

Question type: Maintenance & Repair

2 Answers

68,895

Check your plugs,and wires,if they are good may need to check coil and fuel injector,s.

555

The optispark distributer will cause those issues as well. I have had the same thing on all 3 roadmaster wagons I own. Once The plugs wires and coil was checked I looked into the distributor. If you do go that route buy the complete unit not just the cap and rotor. The water pump has to come off for this job and if you are going that far it makes more sense to replace the entire unit. most of the time you will find oil and other junk in there and it would be sickening to do all that work for just a cap and rotor (you will need some special tools to remove that cap) to find the opti spark has failed.

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