driving on the highway all of a sudden started missing loss of power
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.
Search Buick Riviera Questions
Buick Riviera Experts
Related Models For Sale
Used Cars For Sale