2005 Yukon Denali 6.0 1500 series. Ever since I bought it I had to baby the fuel in when gassing it up. Sucked on cold days. Bought a new vent solenoid/canister and installed it a month ago. Significant improvement but I can still only use the slowest setting on gas pump handles. Wondering if there could be a plugged line somewhere or if there is an additional part that could contribute to the problem?
Thanks for any thoughts or suggestions