Question about 2003 GMC Yukon Denali
Hisses when gas cap is opened
Supposed to hiss. There is a pressure sensor on the tank which when bad willl let you know there is a problem. That is why there is usually a warning about fuel spray on the gas cap/lid.
Posted on Mar 08, 2009
I think you have problem in fuel tank ventilation the (EVAP) system do to ventilate the fuel tank and pull up fuel vapor to the engine
may be there is blocked pipe or electrical fault in valve (EVAP system) in engine room
Posted on Jul 02, 2008
no it has a closed system so no smell of petrol so their is something wrong with the suction pump and the pipes that come from teh engine compartment
Posted on Apr 04, 2011
Testimonial: "Thanks for being so quick!"
SOURCE: 2006 torrent po446 code smoke
this could verry well be the gas cap vent broke, even if tightned still broke inside.if the smoke test was done correctly, then this should have been noticed.
Posted on Jan 05, 2011
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Feb 03, 2011 | 2000 Nissan Quest
Jan 04, 2011 | Pontiac Torrent Cars & Trucks
Dec 27, 2010 | 2004 Chevrolet Suburban
Nov 13, 2010 | Chevrolet Monte Carlo Cars & Trucks
Apr 12, 2010 | 2003 Chrysler Town & Country
Mar 13, 2010 | 2000 Mercury Grand Marquis
Oct 10, 2009 | 2000 Toyota Camry
Jul 11, 2009 | 1990 Ford F150
May 23, 2009 | 1996 Chevrolet C1500
Jun 21, 2008 | 1999 Daewoo Leganza
1,592 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: