[ChevyGuy]

There's a few threads on chirping. Working from memory:

• It could be a PCV malfunction - try puling the dipstick and see if it goes away. If it does, then that's the problem.
• Bad seals - aggravated by above.
• Loose sparkplug. Pop the coil and check the torque.

 

[Robby]

In addition to ChevyGuy's response, there have also been dry crankshaft seal chirps.....also go away with dipstick removal (for testing).

Seal replacement ends the concern.

Rob

 

[dhpnet]

That sounds exactly how mine sounded when a spark plug was loose. I would check that first since it is so easy to do.

 

[ChevyGuy]

I would check that first since it is so easy to do.

I'd pull the dipstick first. If the sound doesn't go way, then try the sparkplugs.

 

[NickD]

18 ft.-lbs or pound feet of torque on the spark plugs, around a hundred with the belt tensioner and should work smooth.

Can remove the belt from the tensioner and with a finely tuned index finger, can rotate all the sheaves for any rough spots, insufficient gaps in the AC compressor clutch been known to cause these problems.

To the good ear, a chirping sound is different than a whistle, taking me longer to type this than to check it.

 

[JoshDS]

thanks guys really appreciate it. ill try a few things out.

 

[justinalbs]

I had a chirp from my 13 only at full operating temp. Turned out to be from the water pump.

 

[JoshDS]

i thought that was the problem too since the housing was leaking so they changed the water pump and new belt. im going in on the 13th for gm to try and figure it out.