[bansheejoel]

My truck makes a noise in the cab that is driving me nuts!! It almost sounds like a bad blower motor for the heater but doesnt do anything different when you turn the heater on of off. It only does it when the engine is warm and the throttle is steady. It doesnt do it when your acc. or dec. Its not a knock or tick. Any ideas?

 

[054x4dmax]

its not the lil speaker above ur head for onstar ? mine was making sum crazy noises b4.

 

[jc1843]

its not the lil speaker above ur head for onstar ? mine was making sum crazy noises b4.

That "speaker" NOT a speaker-- it is a sensor for the environmental system. It samples the air temperature for the heater/air cpndition system and has a small fan inside of it.

 

[bansheejoel]

Its a plain jane model truck, doesnt have onstar or a outside temp deal. Its odd, if i hold a steady throttle and let off a little bit and put the throttle back where i had it is louder for a split second then goes back to the "normal" Wierd noise. I know this isnt much help.....