1988 R30 Vent Issue - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Ford Assassin · 06-06-2019, 01:59 AM

Hey guys picked up a very clean 1988 R30 last week. Been messing with getting AC going, noticed that I am getting a decent air flow from the two inter vents, but absolutely zero flow from the outside dash ventZ. I haven't taken much else apart to check.

Any thoughts to this? The controls will allow me to direct to the floor (heater), but can't get any flow to the outside (near doors) vents.

I am replacing the original DA6 compressor due to a blockage on the low side (which I hear is common with these compressors) with a HR6 which will be here Friday. The accumulator and orifice tube will be replaced too, along with all of rings with a R-134 conversion.

**57NAPCO** · 06-08-2019, 05:09 AM

I have an 88 V30 but I don’t know chit about the vents....but I did graduate from Amador HS

Ford Assassin · 06-08-2019, 05:16 AM

Quote:

Originally Posted by 57NAPCO

I have an 88 V30 but I don’t know chit about the vents....but I did graduate from Amador HS

Not me, moved here about 3 years ago.

**cdub2010** · 06-10-2019, 10:03 PM

Check if the venting tubing separated. My glove box was jammed, it turned out to be the flex tubing to the passenger outer vent was separated. I don't think any of the venting was screwed together just press fit.

Ford Assassin · 06-11-2019, 12:56 AM

Quote:

Originally Posted by cdub2010

Check if the venting tubing separated. My glove box was jammed, it turned out to be the flex tubing to the passenger outer vent was separated. I don't think any of the venting was screwed together just press fit.

Upon further inspection, there is no ducting going to either end vents.

So looks like I am going junkyard crawling. What years interchange?

Thanks!!

06-06-2019, 01:59 AM	#1
Ford Assassin Registered User Join Date: Jun 2008 Location: Jackson, Ca. Posts: 674	1988 R30 Vent Issue Hey guys picked up a very clean 1988 R30 last week. Been messing with getting AC going, noticed that I am getting a decent air flow from the two inter vents, but absolutely zero flow from the outside dash ventZ. I haven't taken much else apart to check. Any thoughts to this? The controls will allow me to direct to the floor (heater), but can't get any flow to the outside (near doors) vents. I am replacing the original DA6 compressor due to a blockage on the low side (which I hear is common with these compressors) with a HR6 which will be here Friday. The accumulator and orifice tube will be replaced too, along with all of rings with a R-134 conversion. __________________ Cable -K5 Blazer 2wd: 6.0 LQ4, 7875 Turbo, Tick Stage II Turbo Cam, Built 4L80e, RevMax Billet 3600, 9.5" 14 Bolt -Chevy 3+3 Crew Cab Dually: Cummins 12v P-Pump Swap, Compound Turbos, A2W Intercooler, NV4500HD, 4wd conversion, Radius Arms, Coilovers, Crossover Steering, etc Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=803608 Last edited by Ford Assassin; 06-08-2019 at 05:27 AM.

06-08-2019, 05:09 AM	#2
57NAPCO F’B’D guy Join Date: Feb 2004 Location: Texas/Maine Posts: 2,234	Re: 1988 R30 Vent Issue I have an 88 V30 but I don’t know chit about the vents....but I did graduate from Amador HS

06-10-2019, 10:03 PM	#4
cdub2010 Senior Member Join Date: Apr 2014 Location: detroit mi Posts: 209	Re: 1988 R30 Vent Issue Check if the venting tubing separated. My glove box was jammed, it turned out to be the flex tubing to the passenger outer vent was separated. I don't think any of the venting was screwed together just press fit.



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