Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 05-08-2012, 07:55 AM   #1
Registered Boxster abuser
 
healthservices's Avatar
 
Join Date: Oct 2011
Location: socal
Posts: 1,014
fuel gauge or?

One of the boxsters I have never goes to empty on the gauge but runs out of gas at 1/4 tank. I believe the tank to be reading correct because I can only put 10-11 gals in when empty.

Any insight?

healthservices is offline   Reply With Quote
Old 05-08-2012, 09:43 AM   #2
Opposed to Subie Burble
 
Overdrive's Avatar
 
Join Date: Mar 2007
Location: Central CT
Posts: 1,197
Garage
No way, something's off there. The Boxster has about a 16-17 gallon tank, so if you were bone dry you'd be filling up with close to that much...strange that the car is dying with seemingly 1/4 tank still in it.

I know my gauge can be a little funky at times, and when I first got the car it would not read full even when the tank was full...it would settle at around the 7/8 mark. When I picked up the car there was little fuel in it, and I think the float got used to being at that low position for a long time, maybe some corrosion even built up on the parts that were not sitting in fuel. Eventually this stopped and now it shows around that mark on a fillup and slowly moves to full as I drive away, then starts working its way back down. I guess the float is showing its age, but it still works, and I can drive right down to my low fuel warning light and still be running, not that I make a habit of it.

Your situation sounds really strange, though. I can't really imagine why the car would stop running with fuel left in the tank, or if it really is empty, why it would not take in enough fuel to its full capacity...something, be it mechanical or electronic, has to be tricking the car into thinking it does or does not have fuel when the opposite is the case.

Sorry I can't do more than speculate here, but I've never heard of something like this before.
__________________
-O/D

1997 Arctic Silver Boxster, 5-spd
IMSR + RMS
Robbins glass window top
Overdrive is offline   Reply With Quote
Old 05-08-2012, 12:51 PM   #3
Registered Boxster abuser
 
healthservices's Avatar
 
Join Date: Oct 2011
Location: socal
Posts: 1,014
Yeah the way the car is reacting, it is almost like the bottom 1/4 tank was filled with rocks or something. Is soon as the tank hits 1/4 the car runs funny and dies.

I wonder if it is possible the pick up is not at the bottom of the tank.
healthservices is offline   Reply With Quote
Old 05-08-2012, 01:13 PM   #4
Registered User
 
ppbon's Avatar
 
Join Date: Nov 2005
Location: Florida
Posts: 529
If you can only put 11 gallons when empty ...

Quote:
Originally Posted by healthservices View Post
One of the boxsters I have never goes to empty on the gauge but runs out of gas at 1/4 tank. I believe the tank to be reading correct because I can only put 10-11 gals in when empty.

Any insight?
... then the fuel pump was probably dislodged from its base and is "floating".
You'll have to access the tank, which is under the battery.
Happy Boxstering,
Pedro
__________________
Racecar spelled backwards is: Racecar!
ppbon is offline   Reply With Quote
Old 05-08-2012, 02:55 PM   #5
Registered Boxster abuser
 
healthservices's Avatar
 
Join Date: Oct 2011
Location: socal
Posts: 1,014
That's was along the lines of what I was thinking. Because it is not on the florr of the tank the pickup is not either.
healthservices is offline   Reply With Quote
Old 05-09-2012, 03:49 PM   #6
Registered User
 
Join Date: Sep 2011
Location: eastern NC Crystal Coast
Posts: 413
Quote:
Originally Posted by ppbon View Post
... then the fuel pump was probably dislodged from its base and is "floating".
You'll have to access the tank, which is under the battery.
Happy Boxstering,
Pedro
I feel the same as Pedro having changed one myself. The pump has to go in as directed and the fuel lines have to be routed properly. You must pay attention when replacing the fuel pump. Throw your cell phone in the trash can. Do it yourself, alone. Save the beer until you hear the engine start !!! No distractions.

milliemax is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 07:39 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page