2002 Ford Mustang chirping noise

Tiny
BILL BEGLINGER
  • MEMBER
  • 2002 FORD MUSTANG
2002 Ford Mustang 6 cyl 73000 miles

I have an '02 mustang that developed a chirping noise that sounds exactly like the cam position sensor noise that went out on my '02 taurus. The usual suspects were checked; water pump, alternator, idler, tensioner, etc. The water pump and idler both have some play in the bearings. They don't seem to be the culpret.

The chirping seems to be coming in the area of the CPS which is located directly above and behind the water pump on the timing chain cover. The chirping is intermittant. My daughter was driving the car the other night, when the noise started, and advised that it stalled while at a stop sign several times. It now seems to run fine. The MIL has not been "tripped" so no codes are present.

Is it possible the Cam Position sensor assembly is bad?
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Tuesday, July 7th, 2009 AT 8:06 AM

3 Replies

Tiny
RACEFAN966
  • EXPERT
Well it is possible. You did spray water on the belt to see if the noise goes away? It could simply be the belt as it was on my 98 Mustang. Thats why I only use Gates belts. It is worth a check and if that doesn't determine anything then I would get a long screw driver or a mechanics stethiscope and listen to the idler and tensioner pulleys. Just put it on the bolt in the middle and see if you hear the chirp if not listen to the alternator and power steering and A/C and if still not found then give a listen to the cam sensor to see if it hitting at all. I use a stethescope in my shop as it helps to hear it kind of like the doctor listening to your heart it will amplify it. Let me know what you find.
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Tuesday, July 7th, 2009 AT 9:32 AM
Tiny
BILL BEGLINGER
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I do have a stethoscope and did listen to the alternator, idler P/S pump H20 pump, tensioner etc. I kept hearing the noise in the area of the Cam position sensor. It wasn't until last night before I had the opportunity, but I removed the belt taking anyand all ratation off of those things that I noticed the chirping still there. Taking the stethoscope to the CPS I noticed the noise coming from there. So It would seem to me to be the CPS>
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Monday, July 13th, 2009 AT 10:40 AM
Tiny
RACEFAN966
  • EXPERT
It would seem that you would be right. You don't hear of them making noise very often but it can happen. Yours may be gear driven and that would explain why it would be making noise. Let me know how it goes.
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Tuesday, July 14th, 2009 AT 9:48 AM

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