You can tell by looking at where the metal touches on the inside of the cap however it is generally good practice to replace it every (30-50 thousand miles)someone correct me if I'm wrong on the mileage
Need to know what engine you have.
IF THERE IS CORROSION OR YOU ARE OVERHEATING.
We need to know which engine it has.
We need to know what engine it has.
Gonna need to know which engine you have in there.
Need to know what year and what engine to help you.
Need to know the year of engine to answer correctly.
If the distributor shaft has side to side play it is probably worn out. If the shaft has no play just replace the cap and rotor.
I don't know what your specific problem is, but there is no distributor cap.
Number 1 plug position will be listed on the cap. Now if you know the firing order, and you know the direction the distributor is turning, you then will know plug positions as connected to the distributor cap.
we changed the distributor cup we need to know how to adjust crank car starts excellent when driving car looses power
first of all you need to know what kind of engine you are working on