The front brake rotors can warp and cause a vibration when braking. The rotors will need to be machined or in cases where they are worn to thin, replaced to correct this issue.
Resources for the Repair and Maintenance of your 1991 Honda Civic Si
1991 Honda Civic Si
1991 Honda Civic Si Problems
Plugged moon roof drains can cause a water leak inside the car, usually over the head of the driver or passengers head when turning a corner. Cleaning the drains will fix this problem.
Certain models can leak oil externally or allow coolant into the combustion chamber due to a faulty head gasket. The head gasket needs to be replaced to correct this problem.
Rear trailing arm bushings crack and break. The trailing arm bushings will need to be replaced when they break.
Leaking tail light gaskets can allow water into the tail light assembly and inside the vehicle. Replacing the tail light gaskets will commonly correct this issue.
1991 Honda Civic Si Questions and Answers
where is the drain for the sunroof located? mine leaks when it rains sometimes and runs down my shirt collar or onto my passenger when i go around a curve. i've read that it is a common prob...
Only happens when outdoor temp is over 80 degrees.
I'm in Houston area -- so that's 10 mos/yr.
Started a little over a year ago -- now MUCH, MUCH WORSE!
Happens when car has not...