How do you repair a cold start rough idle for the first several minutes on a 1986 Buick Riviera?
I had to try one additional part. I thought the pressure regulator resolved my problem. With an outside temperature at 45 degrees the car started up great. An outside temperature at 65 degrees caused the car to stall after the initial start-up. The intake air temperature sensor ($16.00) was replaced and this solved my problem.
I had a 1963 Buick Riviera, and it hauled a....even beat a corvette in it... big ole thing that it is/was. lol I have a 1995 Buick Riviera and it's quickk, definitely has the power when you need/or want it... that turbo is sweeet... I don't know if you want to say it a muscle car, but it will give the muscle car a good run for its money.... guaranteed...... Love my Rivey