Question? Is your service engine light on? My problem was similar to your however it was most problematic while ideling in gear. I corrected it by changing the EGR valve and a flex brass pipe leading from the EGR (which was cracked /leaking on each end). Also I changed my coil pack to a high performance one.
1996 Buick Riviera Supercharged Coupe FWD
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Maintenance & Repair
What part controls which vents the hot or cold air flows through? Only comes through window defroster vents.
1992 Buick Riviera Coupe FWD
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Maintenance & Repair
my rebuilt engine has 70k miles on it.. my stock parts have been transferred to the rebuilt engine too. when i take it for a drive, it seems to be missing; engine will idle but run rough. feels like ...
1989 Buick Riviera
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Maintenance & Repair
my rebuilt engine has 70k miles on it.. my stock parts have been transferred to the rebuilt engine too. when i take it for a drive, it seems to be missing; engine will idle but run rough. feels like ...
1989 Buick Riviera
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Maintenance & Repair
I put the cap back on. Have to put more antifreeze in. Co,old that have been the problem?
1992 Buick Riviera
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Maintenance & Repair
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