vaccuum hookup?

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06-10-2007, 07:45 AM

stylincompact

HCF Member

Thread Starter

Join Date: May 2006

Posts: 172

vaccuum hookup?

hey guys i blew the block on my 98y5 and bought a 99 y8 block. on the thermostat housing there is what look like a vaccuum line off it next to the temp sensor. my 98 doesnt have that. what is it?

06-11-2007, 03:45 AM

Forty04

Laced with Sarcasm

Join Date: Mar 2005

Posts: 15,280

RE: vaccuum hookup?

If it connects to a little black cylinder, it's the Air Assist Solenoid. If you're still running your OBD2a ecu, you can just put your 98 T-stat onto the 99 y8 block.