There are shotgun shell shaped cartridges in the rear brake lines just under the rear driver side door, and one of them went kablooey. What are they? (don't have my fsms with me, and can't drive the car back home to get them!)

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1993 SSE Since 11-12-2000
2011 Camaro 2SS
2006 Silverado 3500 4x4

I think they are proportioning valves. And the last time I recall seeing them on here, they were expensive.

EDIT - http://www.rockauto.com/catalog/x,carco ... ttype,1888

Yup, they are $32 a piece.

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2012 Grand Cherokee Overland Summit - Hemi
1996 Thunderbird LX - 3.8

Thanks! It turns out thought that it was the line leaking, right by the fitting. I think i might pickup one of those and replace it anyway since it looks so bad. I'm going to try one of those compression brake line patches so i don't have to replace the whole line. Are the compression patches ok, or do i need to flare the lines?

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1993 SSE Since 11-12-2000
2011 Camaro 2SS
2006 Silverado 3500 4x4

I would flare the lines, but I'm paranoid...

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Bye Bye:

RIP sandrock

00beast is not paranoid about the fairing. It will save you a ton of grief. - JMHO - BC

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In Memory of Brad - 1/21/1977 .. 10/23/2013 ...... Aaron - 1977 .. 2017 .....
2017 Hyundai Santa Fe Sport ..... 1992 Bonneville SSE 1SB 170 HP L27 4T60E retired/sold to MattStrike ..... 2005 Bonneville SE 1SC 205 HP L36 4T65E - retired/salvage yard ..... PBCF user 2321

Compression fittings on brake lines mean you're ending up in a collision since it blows off under brake system pressure. Compression fittings are fine for fuel systems but not for brake systems, which have 10-20x the pressures of a fuel system in a panic stop.

They make double-flare to bubble-flare lines that are available for cheap at about any parts store. Double-flare the cut-off end on the factory brake line, then use that to connect in your piece of line with a union fitting.

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2012 Chevrolet Cruze Eco - Current car

1999 Buick LeSabre Custom - Former car

Learn from the mistakes of others, that way when you mess up you can do so in new and interesting ways.

Thanks for the advice. Unfortunately i headed to the parts store before checking in here and the parts store guys said compression would be fine. I made a couple panic stops last night, and pumped up as much pressure on the pedal as i could and it hasn't blown off yet, but i guess i better re-do it.

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1993 SSE Since 11-12-2000
2011 Camaro 2SS
2006 Silverado 3500 4x4

Parts store guy is wrong and potentially liable in NY if he knowingly sold a compression fitting for use on brake lines. With the annual state safety/emissions inspections here, if the inspector spots a compression fitting on the brake lines it's an automatic fail for safety. If they see a double-flare union they permit that if there is no evidence of leaking.

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2012 Chevrolet Cruze Eco - Current car

1999 Buick LeSabre Custom - Former car

Learn from the mistakes of others, that way when you mess up you can do so in new and interesting ways.

If you get new valves, pay close attention to how the old ones are pointing. If you're patching in new lines, it's not self explanatory.

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WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser, 3.45 diff and various Camaro suspension bits, LED Taillights

Though I know I'm going to get grilled by saying this: The warbird doesn't have those valves on the new rear lines! I had to replace almost the entire brake system two years back and couldn't find any info on these things (mid project). Its not so bad at all! Oh yea NYS inspections are the biggest scam law in place! Totaly unfair to us over here!

I believe they only came on cars with ABS. Non ABS cars don't have them if I am correct. I can't be certain on that though.

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2012 Grand Cherokee Overland Summit - Hemi
1996 Thunderbird LX - 3.8

Yeah i love indiana...we can get away with anything here. Neons, tint, rolling black smoke, you name it. But i sure as hell don't want to wreck because of my own crumby repair job.

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1993 SSE Since 11-12-2000
2011 Camaro 2SS
2006 Silverado 3500 4x4