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#1 |
Join Date: Nov 2012
Location: brooklyn, ny
Posts: 4
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Newly Aquired 90. I hear a loud constant whistling noise coming from behind what i believe is the Throttle Position Sensor (Left front of motor). Im guessing its a vacuum leak, and after i took off the plate that covers the TPS sensor. i found this zip tie and mess of glue.
Ive searched but i dont know what to call it or what to buy. Id like to figure out what its supposed to look like. Does anyone have a picture of the correct setup? |
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#2 |
Join Date: Nov 2012
Location: brooklyn, ny
Posts: 4
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here are the pictures
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#3 |
Join Date: Oct 2004
Location: Folsom CA
Posts: 1,648
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Sorry to be the bearer of bad news but it's a one year part only (1990) and the design was so bad that GM changed it the very next year.
As far as I know they are long gone from the inventory and they have never been remade. I don't remember what it was called exactly, but I'll dig out the big old red book and have a look see just as soon as I have my coffee and find my glasses. [edit] It's called a "Fitting, PVC/Purge Canister Hose". Page 6A2-21 of the FSM. [/edit] I'll bet that Marc Haibec will have something, or knows exactly what to do. http://zr1specialist.com/ I'd also check with Jerry at Jerry's Gaskets: http://jerrysgaskets.com/store2/root/ He may have one laying around. Doubt that Kurt White would have one, but you never know. http://www.whiteracingproducts.com/ Failing that, time to get creative. 'Crabs
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TomC '90ZR1 #792 Honorary Pirate [B]If it ain't FUN, you're doing something terribly WRONG. [/B] Last edited by tccrab; 12-15-2012 at 12:10 PM. |
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#4 |
![]() Join Date: Jun 2012
Location: PA
Posts: 772
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Had the exact same problem. Was able to find a NOS one from someone. If you don't have the info already, PM me and I'll forward you the email address of the guy.
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Joe 1990 Bright Red ZR-1 #2599 |
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#5 |
Join Date: Dec 2012
Location: NC
Posts: 1,786
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Gotta' second recommendations on Mr. Haibeck, and PETE (on boards here), as Z-car knowledgebase types...
and both pleasant to deal with as well ![]() |
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#6 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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just replace with rubber tubing, no need for the NOS stuff to make it work right
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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#7 |
![]() Join Date: Jul 2004
Location: Kalamazoo MI
Posts: 1,735
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yeah if you can't find a NOS one get some rubber tube and some clamps and swap them out, All of my 90s I have owned have had an issue with that one little POS area for vacuum.
The get soft over the years, I actually got a brnd new one and it was pretty stiff so I think they just age, get soft and no longer provide the seal that you need.
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JOHNNY P Currently own 90 ZR-1 #845 DRM 500 engine package 90 #226 Parts car Hit me up if you need anything. |
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#8 |
Join Date: Nov 2012
Location: brooklyn, ny
Posts: 4
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Thanks guys, will search for the correct part. if its proves to be a pain ill just go with the hose and clamps.
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#9 |
![]() Join Date: Jan 2009
Location: Portland Oregon metro area (Washington side)
Posts: 3,207
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I could swear this is one of those parts that someone was using their CAD system to design and produce a replacement NOS looking part.
Search for some thread on it. Problem is what to search for. I fixed mine some years back by placing a 4/40 screw through the middle and putting 1/2 washers on both sides. This tightens up both orifices on that side. Tie wraps don't work because of the geometry.
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Scott ![]() Vett owner since 1979._It's about the car and the people |
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#10 | |
![]() Join Date: Jun 2012
Location: PA
Posts: 772
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Joe 1990 Bright Red ZR-1 #2599 |
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