sounds external to me, take off the ac belt and try again.
What did you do to your NNBS GMT900 Tahoe/Yukon Today?
- Thread starter phattyford
- Start date
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Geoffsfas10
Full Access Member
I know...it does but it doesnt. its 100% is coming from the front of the engine, just hard to pin point. was also thinking of just taking the belt off and manually spinning the pullies to see if any squeal. ive had them go bad before but they sounded more like blower noise then this
pwtr02ss
Full Access Member
That doesn't sound internal to me. Any chance the flywheel is cracked and is hitting randomly?
Geoffsfas10
Full Access Member
pretty sure the bendix in the starter is broken and that casuing a secondary noise/tick. whole thing is a mess haha
im gonna take the belt off tomorrow when its cold, since the water pump wont be driven, and see what sounds it makes. its a little too warm here for my liking to run it without water
wjburken
Supporting Member
I’d check that starter sooner rather than later or you’ll have a greater chance if needed a new flex plate.
I agree that it sounds external as well.
I agree that it sounds external as well.
take off both belts then, I have had ac pumps sound almost identical to that and much worse.
Geoffsfas10
Full Access Member
arent the ac belts the stupid stretch fit ones?
yes, depending on the year I think 07-09 have a tensioner might only be 07-08
in that case lisle makes a tool for getting it off and on, getting it off is easy, getting it back on is a little trickier you have to place the tool in just the right spot because of the plastic or metal piece that goes over the balancer
I have seen it done with a screw driver on youtube
I have seen it done with a screw driver on youtube
