Zero TDC. / Top Dead Center
with a timing light....10 degrees
behind the timing belt covers
The timing marks are marks on the front main pulley. The marks indicate when a certain piston is at the top of its stroke. You can turn the pulley to a certain position, aligned with the timing marks, and no that piston is at the right position to set the timing.
The crankshaft position sensor on a 1995 Chevrolet Silverado is located on top of the timing case. The part can be purchased at any auto parts store.
Its out of time. The timing is off, check the key in the flywheel , and check to make sure the the timing chain has not jumped or slipped a tooth.
The 1995 Dodge Ram 1500 uses an OBD 1. You can double check this bu looking at the emissions sticker under the hood.
Before you replace timing gear or belt check codes with code reader, may be a crankshaft position sensor. Sensor is very easy repair and L300 isn't going anywhere if that sensor is malfunctioning.
check timing belt might have slipped
check throttle position sensor.
On a 1995 passport it has a timing belt
A 1995 Toyota Corolla has a timing belt.