Question about GMC Sierra 1500

2 Answers

The "tighten fuel cap" message comes on the dash. Followed shortly by the check engine light coming on. Used and engine analyzer to clear the check engine light. Put light coating of petroleum jelly on the gas cap gasket and tightened. Cleared check engine light after a few days it returns???

Posted by on

  • Anonymous Mar 23, 2014

    if I clear the code it goes back to normal

×

Ad

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 183 Answers

It's the gas cap sensor. Or you are getting a vaccuum leak somewhere.

Posted on Apr 24, 2009

  • Suzy Hastings
    Suzy Hastings May 05, 2014

    Where is the gas cap sensor?

×

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

0mg I don't have GMC Sirriea I have a 1997 BuickSkylark...

Posted on May 05, 2014

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
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.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Check engline light on and check gas cap message


If the gas cap is tight then rpelace it.

May 24, 2012 | 2005 Buick LaCrosse

1 Answer

2009 crv check fuel cap


Go to the parts store where you bought the cap. Sometimes the code clears on it's own and sometimes you need to have it reset. If this is not an option disconnect the negative battery cable for a minute. Just as a warning, if you disconnect the battery you will have to reprogram most all of your electronics.

May 08, 2012 | 2009 Honda CR-V

2 Answers

Holden captiva is lacking in power, check engine light comes on and traction control lights come on and decline ascent light on dash shortly followed by service light and a large clunk sound. The motor...


I got a same problem in Holden Captiva diesel 2010 model as soon as you accelerate on traffic light the traction control light comes on engine light on dash, engine lack of power, turn the engne off for few seconds and goes ok but engine light stays on dash. Checked with the tech tool, it comes fuel metering code, can bus code... What it could be????. I've already changed fuel filter and did general service, still comes on. ANY IDEA PLEASE. OR I BURN THIS CRAPTIVA

Oct 13, 2011 | Cars & Trucks

1 Answer

Hi have a pontiac G6 GT 2005 I have a message that comes on saying check gas cap the 1st time it happened it was under warranty and the dealership replaced the gas cap for me, a year later the same thing...


The fuel cap needs to be tight or it will set a code. It's a pressurized fuel system. Try to tighten snug the code should clear itself. If this does'nt work exchage the fuel cap, it may not be working properly.

Jul 25, 2011 | Pontiac G6 Cars & Trucks

1 Answer

Hi my kia sedona CHECK ENGINE light comes on now then. what could be wrong, can it affect performance.


Ususally when they come on and go out peroidically it is fuel related. Low octane fuel will give a bad oxygen sensor reading triggering the light for short periods. (Modern engines are recommended to use mid to high octane -grade fuel) Also a bad gas cap seal or not tightening it properly after fueling can cause that. (Manufacterers recommend replacing the gas cap every 2-3 years) Whatever it is , it is affecting your engine performance to some degree or the light would'nt come on. See if you can get a code out of the computer, that will give you a better indication of a potential problem.

Jul 03, 2011 | 2006 Kia Sedona

1 Answer

2004 gmc sierra ext cab z-85 message screen will flash tighten fuel cap a couple of times and then the check engine light comes on. this has happened a couple of times before and the check engine light...


Your vehicle does two types of evaporative leak detections by the on board diagnostics. Depending on the test your a getting a gross leak detection fault this is usually caused by a faulty fuel cap that is not holding the vapor in the tank. The tests have to be done under set conditions so the problem will only occur when the test is commanded and the test fails. You will get the fuel cap then the check engine light.

Feb 16, 2011 | 2004 GMC Sierra

1 Answer

When I'm on the road my check engine light comes on but it happens at different times, sometimes it never comes on or sometimes it comes on a few miles down the road. when I turn my car off then turn it...


The most common cause of this is the gas cap not being tightened completely after re-fueling or a worn rubber gasket on the cap.Remove the gas cap and turn it over and check the gasket if it looks like it's not worn put the gas cap back on and then tighten it until it clicks several times, then it make take a little while before the check engine light goes off. If this still happens shortly after tightening the gas cap have the check engine code read at an Automotive Parts store. Some stores have the code readers and they'll get what the code means and advise you at that point.

Aug 28, 2009 | 1993 Lincoln Town Car

1 Answer

Gas cap?


have a local dealer clear the light(they will most likely charge u/ but they may not)), and make sure u tighten ur fuel cap at least 3 clicks after ur next fill up...

Aug 06, 2008 | 2008 Honda Element

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

1,655 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

76109 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...