20 Most Recent 1990 Buick Riviera - Page 2 Questions & Answers


Under the drivers side of the car. It is either by the drivers feet or back by the rear wheel. jack up the car and you will see the fuel lines running from the back of the car to the front.

1990 Buick... | Answered on May 21, 2014


Might be the coil module. coil pack is located at the front of the engine, if there is stuff oozing out of it then the module is bad.
Auto parts stores have them and they run $75-100 depending on brand.

1990 Buick... | Answered on May 21, 2014


Open the armrest and you should see the mounting screws. The liner pull out if that helps.

1990 Buick... | Answered on May 21, 2014


Does it also get poor gas mileage? The cam sensor may be the problem. The common problem is the magnet in the cam falls out, the ECM puts the engine in a mode that it will run but the timing is off usually causes bad gas mileage and could cause backfire.

1990 Buick... | Answered on May 12, 2014


Which one?? KindA important do t ya think

1990 Buick... | Answered on May 01, 2014


Dissconect the fuse pull off the front of the steering wheel with care and then disconnect the wires make sure its not the horn and it should slide out then replace the plastic cover on the steering wheel and the put the fuse back to be sure

1990 Buick... | Answered on May 01, 2014


There is a power control module on these models.

1990 Buick... | Answered on Apr 15, 2014


Check your fuel pressure; if it is within specs, have a muffler shop test your back-pressure from your catalytic converter. There are other things that can cause strange problems like this but it is a process of elimination.

1990 Buick... | Answered on Apr 15, 2014


Get the guys at the parts store to show you or do it for you.

1990 Buick... | Answered on Apr 12, 2014


Get the guys at one of the parts stores to do it for you.

1990 Buick... | Answered on Apr 12, 2014


I believe you can replace by laying UNDER the fender and reaching up . The bulb will twist to unlock. Replace the bulb and repeat proceedure. NOTE!!! you may need to remove some of your plastic splashguards to access it!!

1990 Buick... | Answered on Mar 28, 2014


I agree with the possible bad fuel theory. You would need to figure out if the miss is a fuel problem or ignition problem to proceed.
I would pull the plugs and look at them, also check for vac leaks.
Is the check engine light on when the engine is running ? If so check for trouble codes.

1990 Buick... | Answered on Mar 05, 2014


sounds like you blew your valves, or have other mechanical damage. Does it rattle or knock or make any other noises when you try to start i?

1990 Buick... | Answered on Nov 11, 2013


sparks ? sound very usual and could be a veery big problem such as the ignition hitting ground and electrifying all component.

1990 Buick... | Answered on Nov 11, 2013


EGR valve or MAPS sensor is bad.

1990 Buick... | Answered on Oct 28, 2013


  1. Disarm airbag Failure to do so may result in accidental deployment of airbag, possibly causing personal injury.
  2. Turn ignition switch to the Off position.
  3. Remove two upper panel cluster attaching screws, then pull trim plate out of lower retaining clips.
  4. Remove two switch attaching screws, then switch assembly, Fig. 11.
  5. Disconnect electrical connectors.
  6. Reverse procedure to install noting the following:
After all work has been completed, rearm airbag

1990 Buick... | Answered on Aug 15, 2013

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