986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Two problems / Q's: Sticky Clutch / Gas Tank does not fill to Full

RandallNeighbour · 05-19-2012, 07:18 AM

I replaced my fuel sending unit and my mechanic recalibrated it with a PST tool by slowly adding fuel to a nearly empty tank and I still don't get a 4/4 reading on a totally full tank. 7/8 is as good as it gets.

It's very frustrating for me because I want my cars to be perfect.

One problem some 986/996s have is the cables/hoses in the tank keep the float down and they need to be zip tied away. This could also be a contributory problem, but Ghostrider's suggestion above about a clogged vent should be explored first.

05-19-2012, 07:18 AM	#3
RandallNeighbour Registered User Join Date: Jul 2004 Location: Houston, Texas Posts: 7,243	I replaced my fuel sending unit and my mechanic recalibrated it with a PST tool by slowly adding fuel to a nearly empty tank and I still don't get a 4/4 reading on a totally full tank. 7/8 is as good as it gets. It's very frustrating for me because I want my cars to be perfect. One problem some 986/996s have is the cables/hoses in the tank keep the float down and they need to be zip tied away. This could also be a contributory problem, but Ghostrider's suggestion above about a clogged vent should be explored first. Last edited by RandallNeighbour; 05-19-2012 at 07:20 AM.