B5 Models Please discuss all 1996 - 2001 B5 A4 topics here...

Weird pumping gas problem?

Old Nov 29, 2012 | 08:59 PM
  #1  
Pbcrazy's Avatar
Thread Starter
|
2nd Gear
Joined: Jul 2012
Posts: 988
From: Warrenton VA
Default Weird pumping gas problem?

I've been meaning to ask this for awhile, whenever I go to the gas station (I have tried several bp and shell stations) the gas doesn't pump right. I either have to hold the handle half way or it will cut off, or I can hold it sideways and it will work for awhile. It's really weird and I've never seen another car do it. I only fill up when I have <1/4 tank. Any possible explanations and/or fixs? It gets annoying because I never know if my tank is full or it's just cutting off
 
Old Nov 29, 2012 | 09:45 PM
  #2  
MetalMan's Avatar
3rd Gear
Joined: Jan 2010
Posts: 1,973
From: Costa Mesa, SoCal
Default

This is actually decently common on our cars. There's a part underneath a round circular plate at the rear of the car (held in by 3 nuts) called the charcoal canister. The purpose of this piece is to catch gasoline vapors from the tank. Over time it fills up or whatever and eventually is no longer effective at catching vapors, so as you fill up the tank excess pressure builds up and cuts off the flow of gasoline from the pump. Holding the handle half-way reduces the flow from the pump and thus lessens the pressure buildup in the tank.

I used to have the same issue you do... fixed it by swapping in a used charcoal canister from a car with only about 50,000 miles. Now my car always pumps until the tank is actually filled

DIY: Charcoal canister replacement
 
Old Nov 29, 2012 | 10:57 PM
  #3  
redmond1501's Avatar
1st Gear
Joined: Nov 2010
Posts: 390
Default

Charcoal canister and/or EVAP purge valve.

I don't let anyone pump gas for me anymore -- topping it off causes this problem.
 
Old Nov 30, 2012 | 06:10 AM
  #4  
Pbcrazy's Avatar
Thread Starter
|
2nd Gear
Joined: Jul 2012
Posts: 988
From: Warrenton VA
Default

If anybody knows of someone selling one cheap let me know, thanks guys! This has been driving me crazy since I bought the car!!
 
Old Nov 30, 2012 | 11:18 AM
  #5  
MetalMan's Avatar
3rd Gear
Joined: Jan 2010
Posts: 1,973
From: Costa Mesa, SoCal
Default

The part number is 8D0201801E. Check on Ebay and whatnot, you're bound to find one (that's where I got mine).
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
DannyG
Forum Issues
0
Mar 2, 2015 03:39 PM
awhit28
General Tech
0
Sep 5, 2009 01:27 PM
kenus
General Tech
2
Jun 27, 2007 12:11 PM
TTsteve
Audi TT
1
Dec 27, 2005 12:21 AM


Thread Tools
Search this Thread

All times are GMT -4. The time now is 01:11 AM.