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Nissan 300ZX

315 messages,  Last post on Aug 18, 2009 at 11:47 PM

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What is this discussion about? Nissan 300ZX, Coupe

This forum is for anyone interested in the 300ZX, all years and variations.

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#60 of 315 300ZX Air Conditioner Problems by myputtputt Sep 10, 2005 (8:42 am)
It seems that 1985 through 1987 Z air conditioners are prone to a very specific type of problem. When manifold vacuum drops, the air conditioner switches from cold air to hot air. The bad news is that most A/C shops will charge $800 and up to fix it. The problem is typically caused by a vacuum leak under the dash. The control baffles and vacuum lines eventually degrade and leak. I've had 3 300zx's and they have all had this problem. After several trips to the wrecking yard I've worked out a way to get to access the baffles and vacuum controls. The final obstacle is the duct work. When I've worked it out, I plan to post it here but in the mean time I'd like to hear from anyone who has found a way to replace the baffles without cutting through the duct. Replies to this message: snyderhouse2 (Oct 03, 2005 9:58 am) tompop (Nov 12, 2005 9:31 am) turbozx (Feb 26, 2006 7:43 am) dorney (Nov 16, 2005 8:16 am)
#61 of 315 '87 300ZX Body Parts by ddunlap Sep 11, 2005 (8:31 am)
O.K. If nobody knows whre to find a replacement hatchback, does anyone know where to find major body parts? Maybe there's a parts house specializing in 300ZX's somewhere. Tweeks in Indianapolis used to deaal in Porsche and 300ZX's - but now only Porsche. Any help would be greatly appreaiated. Thanks. Dave Replies to this message: murrade (Sep 20, 2005 4:56 am)
#64 of 315 Re: '87 300ZX Body Parts [ddunlap] by murrade Sep 20, 2005 (4:56 am)
Replying to: ddunlap (Sep 11, 2005 8:31 am) What major body parts are you looking for? I live in Indianapolis.
#65 of 315 Re: 1993 300ZX NA - Low Idle [andydelmar] by uk300zxtt Sep 22, 2005 (12:00 pm)
Replying to: andydelmar (Aug 15, 2005 3:28 pm) Try cleaning the air flow meter ! my car had the same symptons if this doesnt work then most likely an air leak ,ie air being sucked in somewhere its not supposed to , if cleaning air flow meter doesnt work then check all the vacum pipes around the engine bay , maybe a cracked or split pipe !! hope this helps!! let me know how you get on . alan
#67 of 315 300ZX bose speaker availability by ronaries10 Sep 23, 2005 (9:20 am)
Need suggestions on where to find the orig Bose speaker (front door rt) for the 1992 300zx 2dr coupe Surely. there must be a online board somewhere that has info on parts/availablilty & -if need be- salvage for the 300z. Thanks ronaries
#68 of 315 300 zx need a speaker by pete18 Sep 26, 2005 (4:13 pm)
Did you find a speaker? I have a 95 TT and need a driver door speaker. Just lost a bid on one on e Bay   Thanks, LP
#69 of 315 Re: Air Conditioner Problem [myputtputt] by myputtputt Sep 27, 2005 (10:16 pm)
Replying to: myputtputt (Sep 10, 2005 9:05 am) Welp, finally this nasty problem is solved. AND I DON'T HAVE TO FORK OUT $800 BUCKS TO FIX IT!!. The fix for this is simple but takes some time and a visit to the auto wrecker. Turns out that the Turbo model was manufactured with a vacuum pump!! Soooooo I pulled the pump off a Z I found at the wrecker and installed it in my non-Turbo Z. The pump has a 2 line electrical connection. The trick is to wire it so the pump only comes on when you push the A/C button. I found a relay under the hood that is electrically tied to that button. One line goes to ground and the other to the relay. The vacuum line from the pump is Tee'd into the heater side of the vacuum tank. The pump provides sufficient vacuum to prevent the Climate Control from fail safe -ing to the heater. The system is designed to turn on the heater when the vacuum drops below a preset level. Unfortunately this happens when manifold vacuum can not make up for line losses caused by an old system. Bottom line - it works!!!

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