You should consider changing an op-ti spark when you notice signs of poor engine performance, such as rough idling, decreased fuel efficiency, or difficulty starting the engine. Additionally, if you see physical wear or damage to the spark plug electrodes or if they are due for replacement based on the manufacturer's recommended maintenance schedule, it’s time to change them. Regularly inspecting the spark plugs during routine maintenance can also help determine their condition.
change your opti-spark they are know for this
It would be a vented opti spark.
wet ignition need to know the year but if the distributor is the opti spark syst a cup of water will cripple this system
Most comin failure on these cars is the opti-spark distibutor
The 5.7 in your Cadillac is a Chevrolet LT1. The same motor that came in an Impala SS and Buick Roadmaster. It uses an "OPTI SPARK" distributor that runs off the front of the motor. There is no timing adjustment that can be made with the unit. The engine management computer controls the timing and adjusts the spark as ou drive. If you are having timing problems, the OPTI SPARK needs to be replaced.
Any of the Opti-2 or Opti-4 Oil products can be purchased at www.jagorequipment.com
A very good possibility is the opti spark distributor.If this distributor gets slightly damp,it can cause several problems.
OPTI Canada was created in 1999.
OPTi Inc. was created in 1989.
OPTi Inc. ended in 2002.
Opti buk was created in 2002.
Daihatsu Opti was created in 1992.