1990 dually kick panel vents vac line?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**cag** · 05-22-2025, 07:13 AM

so there is a vac line that is teed with a gromet on it, where does this vac line go? one side is on the diaphragm on the kick panel vent.

Thanks!

**kwmech** · 05-23-2025, 11:08 AM

up to the ac control panel I believe

v30crewcab · 05-27-2025, 12:58 AM

theres a vac diafram up in the cowl for recirc. hose goes thru a grommet out to that.

05-22-2025, 07:13 AM	#1
cag Active Member Join Date: Aug 2022 Location: winneconne, wisco Posts: 185	1990 dually kick panel vents vac line?? so there is a vac line that is teed with a gromet on it, where does this vac line go? one side is on the diaphragm on the kick panel vent. Thanks!

05-23-2025, 11:08 AM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,941	Re: 1990 dually kick panel vents vac line?? up to the ac control panel I believe

05-27-2025, 12:58 AM	#3
v30crewcab Registered User Join Date: Apr 2012 Location: Chatt Tn Posts: 1,022	Re: 1990 dually kick panel vents vac line?? theres a vac diafram up in the cowl for recirc. hose goes thru a grommet out to that. __________________ 88 military v30 crewcab shortbed 5.9 cummins, nv4500, 205 86 k30, 89 diesel burb, 76 gmc pathfinder 71 longbed 5.3 4l80 http://67-72chevytrucks.com/vboard/s...d.php?t=522535



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