98 Yukon 4x4 squeaky on cold start

[olliec420]

Have you confirmed you don't have a weeping water pump? That could be a culprit too, in my experience.

No, I never heard of that. I'll look it up.

 

[ZEUS1]

It is very rare but I have ran across where a seal will have a squeak noise till heat builds in it. I have found noises at the rear main seal and the harmonic balancer seal.

Found my issue, the ac compressor bearings just went out .

 

[wilcfr]

The 98 is doing great. Only issue (well besides the minor ignorable ones) is it has recently started squeaking on startup. See video. Anyone know what that is?

Sounds remotely like a water pump bearing my be going