| Subject: | Fuel Tank Hard to Fill Or Displays 1/2 Tank After Filling |
| Models: | 2004 - 2009 Cadillac XLR |
| 2005 - 2013 Chevrolet Corvette |
This PI was superseded to update models and years. Please discard PIC5049.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Some customers may comment that after filling their vehicle, the fuel gauge only reads 1/2 tank or they are having a difficult time filling their fuel tank. Further inspection may reveal that the fuel tanks did not fill up completely. This may be due to a fuel station concern or a kinked/twisted EVAP canister hose.
If the customer is having a hard time filling their fuel tank (the pump continues to click off as if the fuel tank is full), try several different filling stations or compare with a like vehicle at the same filling station. Filling stations may vary in fuel flow rate from their pumps. Changing fill stations may eliminate this concern, if the other filling station has a lower flow rate for its pumps. If the customer still has a concern, inspect the EVAP vent hose for a kink. Repair or replace the hose as necessary.
For vehicles repaired under warranty, use published Labor Operation and applicable Labor time.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
Article ID: 114
Created: March 14, 2017
Last Updated: March 14, 2017
Author: Rob Loszewski
Online URL: https://www.xlr-net.com/knowledgebase/article/2004-2009-cadillac-xlr-service-bulletin-pic5049a-fuel-tank-hard-to-fill-or-displays-1-2-tank-after-filling-oct-22-2012-114.html