What are the symptoms of an idler pulley problem?
One of the first symptoms of an issue with an idler pulley is visible wear on the pulley. Over time, as the pulley spins against the belt, both components will eventually start to wear. This may lead to visible scoring marks on the surface of the pulley, as a result of contact with the belt.
Can a car run without an idler pulley?
An engine without a belt can quickly run into issues such as overheating and stalling, as it’s the drive belt that allows the engine accessories to function. Idler pulleys are a common component found on the majority of road going vehicles that will eventually require replacement, especially in high mileage vehicles.
Why does my idler pulley squeal when I Turn on the engine?
Another common symptom of a possible issue with the idler pulley is squealing from the engine belts. If the surface of the idler pulley wears, or the pulley seizes or binds it may cause the engine belt to squeal as a result of it rubbing against the surface of the pulley.
One of the first symptoms of an issue with an idler pulley is visible wear on the pulley. Over time, as the pulley spins against the belt, both components will eventually start to wear. This may lead to visible scoring marks on the surface of the pulley, as a result of contact with the belt.
Another common symptom of a possible issue with the idler pulley is squealing from the engine belts. If the surface of the idler pulley wears, or the pulley seizes or binds it may cause the engine belt to squeal as a result of it rubbing against the surface of the pulley.
An engine without a belt can quickly run into issues such as overheating and stalling, as it’s the drive belt that allows the engine accessories to function. Idler pulleys are a common component found on the majority of road going vehicles that will eventually require replacement, especially in high mileage vehicles.
When to replace the idler pulley on a Pontiac Grand Prix?
This “how to” automotive repair guide was specifically written to assist owners of the 6th generation (1997, 1998, 1999, 2000, 2001, 2002 & 2003) General Motors Pontiac Grand Prix GTP in replacing a tensioner pulley and idler pulley. Owners of other GM cars with engines similar to the 3800 Series II 3.8L V6 may also find the guide to be useful.
Why is my idler pulley on my GTP not working?
A few days ago the serpentine or “accessory” belt in my 2001 Pontiac Grand Prix GTP tore itself apart after some spirited driving. While replacing the Serpentine Belt and the Supercharger Belt, I noticed that a tensioner pulley and an idler pulley didn’t spin easily due to their bearings being worn out.
Where is the tensioner pulley on a Pontiac Grand Prix?
The supercharger tensioner pulley is located near the front of the car right behind a black 3″ grooved idler pulley. Then push the wrench towards the front of the car to relieve the tension on the belt.
When to replace the idler and tensioner pulleys?
Pictures illustrated instructions for replacing the idler and tensioner pulleys in a 1997-2003 GM Pontiac Grand Prix GTP.