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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999


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Old Tue, Apr-14-2015, 03:56:29 AM   #1
likwidmonster
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Default Evap Leak

Hello,

I am getting a CEL for an evap leak and believe I found the source but want confirmation on my findings. I am also looking for advice on the repair.

See the photos below.







Thanks for the help guys!
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Old Tue, Apr-14-2015, 10:23:13 AM   #2
falciott
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Default Re: Evap Leak

A broken nipple on that tank will definitely throw an evap code, mine did . .but it wasn't the bottom nipple that had a crack, it was the top one . I didn't attempt to repair it ,although there are dyi s that show you how , but I doubted their reliability . I just ended up buying a new tank .
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Old Tue, Apr-14-2015, 05:00:32 PM   #3
Jrrrrrrr
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Default Re: Evap Leak

That's the fuel evaporative liquid/vapor separator -it's not uncommon for one of the nipples to break and cause a leak code.

Luckily, this part is the same on all obd-2 e36s, so it's not hard to find. Jb weld, epoxy, or even plastic welding (polypropylene iirc) could all work depending on where the crack is. IE, if the crack is at the junction of the tank and nipple, you'd be better off replacing the whole tank.
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Discussing Evap Leak in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)