Loud clicking noise on startup - HP D1660 InkJet Printer

A loud screeching sound from your dryer could be caused by a few different issues. Here are a few things you can check:

1. Belt: A worn or broken belt can cause a loud screeching sound. To check this, unplug the dryer and remove the front panel. Look for any signs of wear or damage to the belt. If it looks worn or broken, you'll need to replace it.
2. Drum Rollers: Dryer drum rollers can also cause a loud screeching noise. You can check this by turning the drum by hand. If it feels rough or wobbles, the rollers may be worn and need to be replaced.
3. Idler Pulley: A faulty idler pulley can cause a screeching noise. You can check this by removing the belt and spinning the pulley by hand. If it feels rough or wobbles, it may need to be replaced.
4. Motor: A motor that is failing can also cause a loud screeching noise. You can check this by turning the drum by hand and listening for any unusual sounds coming from the motor.

If you're not comfortable checking these components yourself, it's best to call a professional to diagnose and repair the issue.

When I had this on a low power transceiver used a fluorescent choke in series with the 12-volt line. Well, it worked for me.

If it makes a loud clicking noise on startup or shutdown, it could be caused by a weakness in the springs that hold the compressor in place in the hermetically sealed shell.

If it is a constant noise while compressor is running it could be a slightly bent fan blade hitting its surroundings. Check the condenser and evaporator fans.

Clicking noises are normal...banging noises are not. Replace the thermostat.

This sound like you have either delay on internal lubrication to tappets,most probably due to correct oil either change or viscosity.
In how many miles you do change the oil ? Just do an engine oil flush and a engine oil & filter change using also a viscosity improve and follow for a different engine behavior.

2008 GMC Envoy is only equipped with one of two engines:
4.2L (254") 6-Cylinder SFI
5.3L (325") V-8 SFI

Niether of these engines are equipped with an EGR valve, so I guess the probability of that being the cause of your noise is pretty much zero to none.

If you believe the noise is being caused by the exhaust ststem, then the only way to verify that is to inspect the exhaust system. Leaks are easier to verify with the engine running.

With that said, there is also a Technical Service Bulletin (TSB) that is published by GM that addresses customer complaints about loud noise that is being caused by the electro-viscous engine cooling fan clutch. Some people describe it as exhaust noise and others describe it as the engine "racing" or "roaring".(even though the tachometer (if equipped) will be reading normal)

It basicly says that it can make noise on startup due to high rpm of the fan which goes away once the electric solenoids open and allow the fan to start free-wheeling. GM says this is normal operation. You might want to check to be sure this is not what you are hearing. (it can be pretty loud)

Possibly a leaking hydraulic lifter. They can leak down while engine isn't running and then make a ticking noise for a while on startup. If it takes 10-15 minutes to go away, it is more likely to be a loose tappet which needs adjusting.

Hi Charlie, These machines have a history of growling, however usually they growl before changing the fuser. The fuser is most likely the problem maybe you got a bad one. If you still have the old one and it was quiet you could pop it back in to confirm. Ther is also a gear kit available to replace the fuser drive gears but usually the noise is in the fuser.
Another growling noise can come from optional tray3 if installed. Easy to diagnose just lift machine off the assm. and print.

Hope this helps

I would have you oil pressure checked. The oil pump or bearings could be going out. The lifter noise on this car usually will go away faster then 5 minutes. I think the noise is lasting a little to long.

It is probably a rotary compressor unit.
They tend to make a start up noise.
Some technicians advocate adding a booster starting device to help the compressor start more quickly, thereby reducing startup noise.