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shutters sometimes help plz

98regal

New member
2000 bonneville bone stock 3800 new plugs wires and belt , trans fluid and flush 3000 miles ago it shutters every once and awhile usually when warm it has done it a few time i have a intermittint map or maf code throw they are properly plugged in any ideas what shutter is would map or maf cause this shutter
 


yes if the map or maf is intermittent, then idle and fueling can be off. i would look at what ever the codes are first. could also be a vac leak... but vac leaks normally go away when warm, but sometimes can occur when warm too.
 
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