Question about 2005 Chevrolet Tahoe

1 Answer

I have an engine check light on. The error is p0049. i've replaced the gas cap and error comes back. what should i do next?

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 3,400 Answers

Take it to your local Autozone, advance, etc.. parts store and have them do a FREE fault check. They'll print out the faults for you and reset your light(s)

Posted on Jan 02, 2011


1 Suggested Answer

  • 2 Answers

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

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


Add Your Answer

Uploading: 0%


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



Related Questions:

2 Answers

What does a P0049 Code mean on a 2008 Chevy Corvette

HI Donna.

Are you sure the code is P0049? I have a little book that came with my code reader and I see a code under Chevrolet listed as P0449 which relates to the Evap Cooler Solenoid Malfunction, but nothing on the code you listed. I'm assuming the Check Engine Light (CEL) is on? One question for you too... have you recently filled the gas tank? I'm thinking the seal on the gas cap might be bad? Let me know or if you can attach an image of the code, I can be of more assistance.

Jun 21, 2016 | Cars & Trucks

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

Check engine light on and tighten gas cap comes on. I've replace the gas cap and it still happens. 2006 Denali 6.0L engine

I just repaired this problem this past weekend. It is the Emission Control Solenoid. It is located next to the fuel tank. The cost of the part is about $30.00 from the dealer. It has one electrical connection and one hose attached. The total repair, including jacking the truck up was about 20 minutes.

Sep 19, 2011 | 2006 GMC Yukon Xl Denali

3 Answers

My check engine light came on code P0446; dashboard says "check gas cap" i took it off retightened it and check engine light still on. I noticed that the metal flap for the gas nozzle is...

The metal flap should not trigger the sensor. Once you tighten the gas cap you should clear the code and see if it comes back. Otherwise it will take a while to go away.
If it does come back even though the gas cap is tight it could be the rubber seal around the gas cap replacing that can sometimes fix this issue also.

May 04, 2011 | 2008 Jeep Grand Cherokee

1 Answer

I left my gas cap off after fillig upand the next day and the check engine came on.

The check engine light will come on when you leave the gas cap off or don;t put it back on securely. If you have replaced it, just disconnect the battery for about 15 minutes and the light should go off. If it comes back on then there is a different problem that needs to be addressed.

Feb 08, 2011 | 2000 BMW 3 Series

2 Answers

I'm getting gascap error and check engine light. What's causing the issue?

If you allready checked the gas cap and its on right.
Try replacing the gas cap with a new one.
You should here air wen you open the gas cap after driving
This is part of the emision controls and if it dosn't seal it will cause the check engine light to come on .

Jul 28, 2010 | 2007 Dodge Ram 1500 Quad Cab Sport

1 Answer

2006 Saturn Relay Check Engine Light

PO455 is a large evaporative fuel leak. A bad fuel cap is ONE of the things that COULD be the problem. Fuel system cleaning only lightened your wallet. Reading your post is confusing. Did all this start AFTER the Valvoline Wallet Flushing? If so , they left something loose or disconnected. I would find a qualified repair shop to fix the problem, and if it has anything to do with what Valvoline did, make them pay the bill.

Nov 12, 2009 | 2006 Saturn Relay

3 Answers

Check Engine Light won't go off

If you have an Advance Auto Parts store where ever you are, they will read the code and tell you exactly what to code is and what it means. Any mechanic who "guesses" isn't a mechanic at all - he's a thief. Emissions leak can be any number of things, but not the gas cap!

Aug 21, 2009 | 2003 Dodge Caravan

3 Answers

Gas Cap Error with Check Engine light

By "Replace the gas cap", do you mean put it back on, or buy another one? If you fuel these trucks with the engine running, or don't tighten the gas cap, the light will come on. It will also come on when the seal in your gas cap goes bad. I have had to replace the gas cap on my jeep and dodge already. It fixed the problem both times.

Jul 07, 2009 | 2007 Dodge Ram 1500 Quad Cab Sport

Not finding what you are looking for?
2005 Chevrolet Tahoe Logo

324 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

76164 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8273 Answers

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

Answer questions

Manuals & User Guides