# A Regular Regulator Problem? 12a **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [January 13, 2020, 1:00am UTC](https://community.cartalk.com/t/a-regular-regulator-problem-12a/156415 "2020-01-13T01:00:25Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![gudenteit](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/gudenteit/32/3004_2.png) [@gudenteit](https://community.cartalk.com/u/gudenteit)\ **Post date:** [January 13, 2020, 1:00am UTC](https://community.cartalk.com/t/a-regular-regulator-problem-12a/156415/1 "2020-01-13T01:00:25Z")
I smelled fuel & found that my 2000 Buick Century 3.1 L fuel regulator had fuel coating it from about halfway up the vacuum diaphragm chamber on down to the fuel inlet slipnut. No fuel dripping or spraying. But I couldnt see where the fuel was leaking out from. Several times later I checked to see if the leak got worse but then it dried up and hasnt returned as i drove it today. What might be a common type of leak source with this type of fuel regulator? A slit in the diaphragm causing a leak at the vacuum nipple? An inlet or outlet o-ring? The crimp for the 2 halves of the vacuum chamber is underneath the seam between the 2 chamber halves. Yet i didnt check to see if fuel was dripping from it. And i dont understand how fuel would get up onto the upper chamber half unless a small pinhole is there, that sounds reasonable, might that be a common problem? ---
**Author:** ![gudenteit](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/gudenteit/32/3004_2.png) [@gudenteit](https://community.cartalk.com/u/gudenteit)\ **Post date:** [January 13, 2020, 1:02am UTC](https://community.cartalk.com/t/a-regular-regulator-problem-12a/156415/2 "2020-01-13T01:02:09Z")
The jpeg only shows the regulator after fuel got dried up on it. ---
**Author:** ![gudenteit](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/gudenteit/32/3004_2.png) [@gudenteit](https://community.cartalk.com/u/gudenteit)\ **Post date:** [January 13, 2020, 1:28am UTC](https://community.cartalk.com/t/a-regular-regulator-problem-12a/156415/3 "2020-01-13T01:28:14Z")
this post went all whacky on me, i dont know how, i cant fix it, i asked the moderator to please straighten it out… ---
**Author:** ![Barkydog](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/barkydog/32/2470_2.png) [@Barkydog](https://community.cartalk.com/u/Barkydog)\ **Post date:** [January 13, 2020, 1:49am UTC](https://community.cartalk.com/t/a-regular-regulator-problem-12a/156415/4 "2020-01-13T01:49:39Z")
No worries, been through worse. Sounds like an intermittent fuel pressure regulator? ---
**Author:** ![cdaquila](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cdaquila/32/18089_2.png) [@cdaquila](https://community.cartalk.com/u/cdaquila)\ **Post date:** [January 13, 2020, 5:29am UTC](https://community.cartalk.com/t/a-regular-regulator-problem-12a/156415/5 "2020-01-13T05:29:40Z")
Hi gudenteit. I deleted the duplicate quotes but in the end accidentally deleted your picture. Sorry about that. Can you please repost? ---
**Author:** ![gudenteit](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/gudenteit/32/3004_2.png) [@gudenteit](https://community.cartalk.com/u/gudenteit)\ **Post date:** [January 13, 2020, 7:47am UTC](https://community.cartalk.com/t/a-regular-regulator-problem-12a/156415/6 "2020-01-13T07:47:14Z")
![intermittent leak somewhere](https://global.discourse-cdn.com/cartalk/original/3X/a/1/a110f3adbbf0f24e62d664ca6a99c67957bf3952.jpeg) ---
**Author:** ![gudenteit](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/gudenteit/32/3004_2.png) [@gudenteit](https://community.cartalk.com/u/gudenteit)\ **Post date:** [January 13, 2020, 7:49am UTC](https://community.cartalk.com/t/a-regular-regulator-problem-12a/156415/7 "2020-01-13T07:49:59Z")
cdaquila, thanks much for editing! I couldn’t get anywhere trying to get that post back down to the single text paragraph.