tension pulley is an automatic tensioner that keeps the serpentine belt at the proper tension it is a single pulley that is smooth (no grooves) usually turning clockwise with constant pressure loosens pulley for belt removal use caution pulley is spring loaded
Usually right above and in line with the crankshaft pulley
The 1.6L engine has a single cam pulley, a water pump pulley used to tension the timing belt, and a crankshaft pulley. The pulleys are concealed by a plastic cover with a rubber seal.
If your car has a serpentine belt it will have a tensioner pulley. A tensioner pulley is easy to spot. All of your bolt on accessories i.e. water pump, alternator, a/c compressor etc. will have a pulley to run each one. There will be 2 other types of pulleys, a idler pulley and a tensioner. The idler pulley will be a single stationary pulley with a bolt going through the middle and the tensioner pulley will be on a spring loaded piviot.
The crankshaft position sensor on a 2001 Pontiac Sunfire is typically located near the bottom of the engine block, close to the crankshaft pulley. It is often positioned on the engine's front or rear side, depending on the specific engine type. To access it, you may need to remove some engine covers or components for better visibility. Always refer to a repair manual for precise location and removal instructions.
Give the belt a couple of quick, short tugs to relieve the tension. The belt is most likely jammed. Then if it releases, pull it out slowly. If you pull the belt out too fast, it will often lock up. My mistake, I thought seat belt. The pulley that doesn't connect to anything like the crank or alternator is the tension pulley. It is spring loaded. Some have a place for a ratchet to go or you pry against the housing or the pulley itself as long as you don't pinch the belt. Relieve the tension and slip the belt off of another pulley and release the tension.
I believe it to be on the fan belt mechanisim..the pulley that allows you to adjust the tension.
put your pp in the pistons
The tension pulley is centerline with the engine and at the very top of the belt routing.
Pulley above the crankshaft pulley (lowest on engine)
Will be the only pulley that is spring loaded and not connected to an engine component
it's in the belt path and has sort of a snout behind the pulley. It's back near the tensioner.
On my '96, it's located on the passenger side of the engine, back and down fromthe alternator. It will be very shiny and doesn't look quite like the other pulleys. It's the onlyone that contacts the back, or outside, of the belt.