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

LinkBack Thread Tools Display Modes
Old 11-30-2007, 08:28 AM   #1
Registered User
KevinH1990's Avatar
Join Date: Feb 2006
Location: Virginia
Posts: 1,481
Hard Starting After Refueling

Here's the situation:

If I refuel the car after completing most of my drive to work (about 30 miles) it is difficult to restart the car. I might have to crank it 4 or 5 times before it will run.

If I refuel the car while it is still cold I can usually get it to fire right up. I have no other problems with the car starting whether it is hot or cold.

I had the same problem last year, but after I had the MAF and the air vent hose replaced, the problem went away. Both the MAF and the vent hose were causing CEL's. The vent hose problem was making it difficult to fill the tank more than 3/4's full. The current problem is not causing a CEL or preventing me from filling the tank.

Yesterday I took the car to the shop that replaced the MAF and the vent hose. They checked the car and here are their comments "Check for DME codes, none found. Fuel trim numbers, as well as tank vent, etc. are all spot on as far as parmenters within DME actual values, as well as status of OBD function." This is a good shop, so I'm sure they would have found a code if there was one.

Has anyone else experienced this problem? Is there anything I can be looking for to tell the shop about? I don't "top off" the tank after the gas pump cuts off, but I'm trying to think if it's something I'm doing (such as refueling with the car on a slope or sticking the nozzle too far down the filler tube) that is causing the problem.

2000 Arctic Silver/Black, Hard Top, On Board Computer
PNP Rear Speakers, HAES 6-Channel Amp, Avic Z140BH,
Painted Bumperettes, 2004 (OEM) Top, Homelink integrated in dash with Targa switch, 997 Shifter, Carrera Gauge Cluster with silver gauge faces, heated 12-way driver & 8-way passenger seats, Litronics, silver console

Last edited by KevinH1990; 11-30-2007 at 08:32 AM.
KevinH1990 is online now   Reply With Quote
Old 11-30-2007, 10:28 AM   #2
Registered User
Join Date: Jul 2004
Location: Houston, Texas
Posts: 7,241
Sounds like vapor-lock.

At the next fill up, just put in 8 or 10 gallons and fire up the car. If it fires right up, then you know you've got a vapor lock issue.

While it hasn't happened to me, I've read about boxsters not starting after they've been filled up due to vapor lock.
'97 Boxster (Black Hole for 42,000 Dead Presidents and counting) - 122k
New motor, transmission, suspension, and on and on and on it goes...
RandallNeighbour is offline   Reply With Quote
Old 11-30-2007, 10:44 AM   #3
Registered User
Join Date: Nov 2006
Location: Greensboro, NC
Posts: 139
I just had a similar experience. Last weekend I could not get the car to start. It would turn fine but not ignite. I tried several times and finally had it towed to the dealership. When they recieved it they had the same problem but the next day when the mechanic looked at it it started just fine and has been since. They looked it over and it was clean (no codes). They thought that I'd gotten some bad gas and suggested using some techron or similar.
stjoh is offline   Reply With Quote
Old 11-30-2007, 01:25 PM   #4
Posts: n/a
I was told Porsche had a recall on gas caps, not sure which of the years but 1998 for sure; free replacement by dealer. Mine is the old one and needs to be replaced, however, since I have never had any problems I have avoided the dealer, after all it's not like you could kjust bring them the cap for a swap....

  Reply With Quote

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 06:19 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, 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