1992 Buick Riviera Reviews, Pricing & Specs

AC blows from Defrost and Floor on Bi-Level setting on the HVAC controller

I have a 1992 Buick Riviera. When I purchased the car the AC wasn't working so I never used the HVAC. I took it to the mechanic and he replaced all the vacuum lines under the hood, converted the AC to r134 and replaced a few other things. Well now that I have the car back the HVAC only bows out the defrost and Floor vents but will not blow out the dash vents. Just need a starting point of where to get this fixed. Thank you in advance.

92 riveria will crank but wont stay started it stay started for about 5 minute then idle high and shut down

I have a 1993 buick riviera replaced the crank sensor still no start

I am getting gas, have spark , replaced the crankshaft position sensor. Still no start. It has been in the shop since Monday the shop cant fix it I need my car back.what am I missing o and it has a new starter new fule pump, new battery.

crankshaft sensor

My serpentine belt snapped on my 1992 Buick Riviera it shredded so I replaced it and the car had no spark. I replaced the 16 volt fuse to the relay for the fuel pump and no spark. A day later it started leaking the oil so I don't know any other thing it could be. Any suggestions?

92 Riviera randomly stalls

92 riviera with the 3.8 randomly stalls and randomly wont start. Icm, coil packs, crank sensor and cam sensor have been changed along with plugs and wires. I have noticed that when i go to start the car and it cranks but wont start the check engine light is NOT ON even with key on and not cranking. If the check engine light is ON when the key is on then it will crank and start just fine. Not sure where to start looking, guessing short in a wire or computer could be going? Any help would be great.