Marks are grooves that are cast into the camshaft sprocket and rear cover. crankshaft pulley has notch must be aligned with 10 degree btbc mark (metal plate with #'s) before timing belt is removed
What's exactly the question is?
A 1989 Pontiac Le Mans has a pair of sprockets. These sprockets are typically marked with alignment marks. One can use a wrench to align these marks, then use a pulley to set the belt on the sprockets.
Crank sensors are always located on the camshafts. The 1989 Pontiac Sunbird crank sensor is located on the head of the engine towards to end of the camshaft.
Fuel tank.
1 3 4 2
Remove oil pan
on the right hand side of the block
thermostat is located under radiator cap!
right above the oil filter
1-3-4-2
After looking at the Gates website ( they make timing belts etc. ) I found ( 3 ) 1989 Pontiac models that were available with a 2.0 L engine The Grand Am , Lemans , and Sunbird and NO , IT IS NOT AN INTERFERENCE ENGINE
timing marks 1993 yoyota Camry 2200