Ticking noise coming from my 2004 envoy

Probably blown, replace it, they're cheap enough.

As near as I can tell, the C codes indicate a indicator circuit problem - check the FWD fuse. The transfer case control module (TCCM) may also need reprogramming.

Hi! It should be on the trans axle or cv joint these could be the common problems when you are turning the wheel from left to right. Sometimes if ball bearing damage it would craete noise.. You must get back into your mechanic and remove and check for mechanical error..

Is it under the hood, In the cabin? Vehicle speed related? Engine speed related?

for one take that shop to court there jucing the hell out of ya replacing the same parts over and over agian. 2nd wd 40 the bushings on the lower connects that will take care of the squeaks and have a mechanic install some grease fittings down there so u can grease them. apparently in the turn of melinium cars the didnt come stock that way from the factory. meaning u had to have a mech do it when the part wore out or broke found that out the hard way. take you recipets and take those ***** mechs to court then use that money and get it done right

These engines are known for ticking fan clutches. If the ticking doesnt significantly increase with the engine revving, it may be the fan clutch. The clicking usually happens momentarily and dissipates, and increases only to a certain engine speed. If its an internal mechanical issue, ticking will increase simultaneously with the engine speed increase.

Looking on autozone.com, the calipers are about $50 each, similar for rotors, and the pads are about $60 for the set. Total parts is about $250. Labor is about 2-3 hours. $1200 sounds steep to me. I would ask for a line item estimate. Thanks for using FixYa.

http://www.autozone.com/autozone/parts/2004-GMC-Envoy-2WD/Brake-Caliper-Front/_/N-jlz79Z8knro

Our mechanic said we need to replace the computer! The cost will be $1,000.

It is very hard to give you a reliable answer without knowing or hearing the noise for myself. I would take it to another local shop for a real mechanic to listen to the noise. It really ticks me off that the parts changers you have dealt with are so Un-helpful. When working on a Subaru they should have more respect for the customer. Anyway, I would take it to a shop in your area to allow another person to hear the noise. If you give me your area, I will suggest a shop in your area that maybe better at diagnosing your problem.

I had same problem with a 2005 Envoy in Jan '09. I took it to the ex-GM dealer. He said he'd try. The unit would only play using radio.
Mechanic took unit out of dash, and top off of unit. Ejected CD bu moving the eject mechanism. Replaced top and unit.
Works and plays cds. Cost $25.00 And i tipped the mechanic $10.00 for his knowledge.