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I have a 1991 5.0 buick roadmaster estate wagon, I have a

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intermittent miss after the engine...
I have a 1991 5.0 buick roadmaster estate wagon, I have a intermittent miss after the engine is at operating temperature in high gear at hiway cruising speed in which the tachometer flutters 2-3 hundred rpm along with the miss. I have replaced the distributor due to a no start problem, and hoped this would have resolved the issue it has not.
Submitted: 1 year ago.Category: Buick
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Answered in 2 minutes by:
3/31/2016
Buick Mechanic: Roy Belding, ASE Certified Technician replied 1 year ago
Roy Belding
Roy Belding, ASE Certified Technician
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good afternoon my name is ***** ***** I will assist

have you changed the plugs and wires???

Roy

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Customer reply replied 1 year ago
no it looks as though they have been changed in the last 20k miles not getting any spark grounding from plug wires it does have just standard copper plugs it appears I have had the vehicle for a couple months and going off previous recipts. since no codes are being set you thinking under load this is possibly a bad plug or wire??
Buick Mechanic: Roy Belding, ASE Certified Technician replied 1 year ago

that would be hard to tell especially when they break down when hot.

I would at least remove one and inspect the gap and see if it is excessively worn

Roy

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Customer reply replied 1 year ago
I did when I pulled number 1 to set the dist, looked pretty good but like I said just a standard plug so since its getting a mixed tach signal you think all on electrical and not on the tbi at all
Buick Mechanic: Roy Belding, ASE Certified Technician replied 1 year ago

I would start there. I always start with basics.

Roy

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