What belt do I need to bypass AC in 99 4.0 liter?

[scguru92]

Anyone know a part # for this? I want to bypass the AC just to figure out where a chirping noise is coming from. Its either my AC compressor or my power steering pump......I think.
99 4.0 liter 5-speed

 

[Hardwareman]

Try this:

http://www.autozone.com/addVehicleId,2545201/initialAction,partTypeResultSet/initialN,15300077/shopping/vehicleSelected.htm


You could also remove the belt entirely and briefly start the engine to see if the sound goes away. If it does'nt then it's a different problem, but if it does then it's one of the pulleys.


Allen

 

[AllanD]

More likely it's one of the idler/tensioner pullies.

AD

 

[scguru92]

Thats what I thought at first too. Already replaced the belt, idler pulley, and tensioner assembly and pulley. That leaves the AC, power steering, crank, water pump, and alternator. Its not the alternator or water pump. I guess I'll start it up tomorrow without the belt to eliminate the crank. I picked up a no AC belt today for $20, so hopefully that will tell me what it is. Hopefully its the steering pump, since its cheaper. And I've already blown my whole budget just troubleshooting! ~sigh~

 

[Hardwareman]

My 2.3 Ranger had a slight squeek/chirping/whistling sound right off of idle as I would take off while releasing the clutch. It IS NOT the clutch however as I disconnected the entire serpentine belt and started it yesterday. The sound mysteriously disappeared.

I took off the idler pulley and added a washer to it so the metal bushing was farther away from the sealed bearing area thinking maybe it was touching and causing sound. I also put on a no A/C belt yesterday as well and now the noise is gone.

I have a whole new (2 months old) A/C clutch/pulley assembly so it's kind of weird that the sounds gone you know? These kind of problems are the worst sometimes, good luck.




Allen

 

[JaBradt85]

I have the same issue when I start it on a chilly or damp morning. Its just about every morning since its cold and damp, and when its cold after getting out of work. It has only started since its been cold out. This lovely sound goes away after about 5 or 6 minutes when I am off the highway. I thought it was the belt being tight from the cold, I spoke to the mechanic and believes its the A/C compressor. Have also replaced the belt 2 or 3 months ago along with the tensioner. Any ideas...

Its the vehicle in my signiture....

 

[scguru92]

Well, I started it without the belt...no noise, so its one of the accessories. Put on a no AC belt....still get the noise, not the AC compressor. Thought I would try to bypas the power steering pump with that belt, it worked.....still get the noise, not the steering pump. I've already replaced the belt, tensioner, tensioner pulley, and idler pulley. All that leaves is the alternator and water pump. So I borrowed a stethoscope and listened. Could hear the noise thru the alternator then went to the water pump. Well I almost tore the thing off of my ears, it was so loud. So I guess that answers my question.....water pump. I've just never had one be this difficult to diagnose, usually they always show some visual sign, like play in the bearing or leaking from the snout. Oh well, I was kinda hoping it was the alternator since its much easier and cheaper to do. But I'll take the water pump anyday over the AC compressor!

Thanks guys.