1990 buick regal factory service manual all 1990 buick models with the 38l v6 engine including custom gran sport limited coupe sedan note if your regal is equipped with the 38l 3800 engine you will need the 1990 buick regal service manual along side this supplemental manual for complete coverage general motors corporation. This manual retails for 10500 this manual covers all 1990 buick regal models including limited custom see my other items for the 3800 engine manual supplement if your car is equipped with that engine this book measures 85 x 11 and is 2 thick buy now to own the best manual for your vehicle. Doc 1990 buick regal 3800 engine repair shop manual original supplement 1990 buick regal 3800 engine gm 3800 v6 engine swap from a 43 litre block 1988 1990 pontiac oldsmobile buick 3800 38 series 1 engine 111k 93 94 lesabre park ave olds 88 lumina van regal engine 3800 38l 104k buick 3800 vin k 95 98 rwd remanufactured long block engine complete engines for 1999 buick regal engine diagram . 1990 buick regal 3800 engine repair shop manual original supplement . This service manual is in very good used condition showing only limited evidence of use 1990 buick regal 3800 engine service shop repair manual supplement ebay skip to main content