weird ringing noise in 99' yukon

[jlbourdeau]

hey im getting a weird ringing noise when i first start up my 99' yukon, it will last for awhile then it goes away. but it always does it in the morning after it has been sitting all night. anyone know if this is normal? thanks.

[bajakid2]

Hey,does it sound like its coming from underneath your truck??

[jlbourdeau]

Hey,does it sound like its coming from underneath your truck??

 

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yea it does but more towards the front.

[bajakid2]

mine sounds like its in the middle sort of..it bugs the heck out of me..i cant find out what it is im going to look more today

[bajakid2]

bump

[bajakid2]

hey, i checked out my truck today and it sounded like it was coming from the 02 sensor..im not sure thought im going to look into replacing them because they have almost 100000miles on them...

[jlbourdeau]

hey, i checked out my truck today and it sounded like it was coming from the 02 sensor..im not sure thought im going to look into replacing them because they have almost 100000miles on them...

 

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hmm... i guess ill have to go get mine checked out too then...thanks for the info

[bajakid2]

i checked today and i was hitting the pipe were the o2 sensor is at and its making that ringing noise..im going to replace them soon..will new ones make the truck run better??i have 91k on the truck

thanks-Travis

[getcrunk88]

i checked today and i was hitting the pipe were the o2 sensor is at and its making that ringing noise..im going to replace them soon..will new ones make the truck run better??i have 91k on the truck

thanks-Travis

 

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Well if the o2 sensors are bad then it will improve your gasmilage and how efficient your engine runs i would do it any way bec they have alot of miles on them