Question about 1998 Cadillac DeVille

2 Answers

Check gas cap light comes on, i clear the code but comes back every 50 to 75 miles

Posted by on

  • 4 more comments 
  • joebahbah Mar 02, 2009

    then gas should leak out during fill ups, no gas leaks out when i fill it

  • joebahbah Mar 02, 2009

    then gas should leak out during fill ups, no gas leaks out when i fill it

  • joebahbah Mar 05, 2009

    so i should buy a new gas cap

  • Anonymous Apr 05, 2009

    after we filled up the tank on our 98 cadillac deville. we parked it in our drive way that was on a small incline. we descovered that it leaked out some gas. but when we moved it to level ground no leak,

  • Dave Real
    Dave Real May 11, 2010

    Just leaking fuel vapor can turn the light on. Your vehicle's computer runs a test to check for vapor leaking, if it finds one the light comes on until you repair it.

  • Dave Real
    Dave Real May 11, 2010

    What is the code that comes up? If it is a PO442, there are other reasons the light comes on, leaks in other evap hoses are common.

×

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 362 Answers

Yes, I think it is worth a try.

Posted on Mar 05, 2009

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 6 Answers

I bet you have a rust hole in the fill tube going to the gas tank.

Posted on Mar 02, 2009

1 Suggested Answer

jeepguyracin
  • 549 Answers

SOURCE: replaced gas cap on '05 cadillac keep getting check gas cap message

May be a evap system leak.

Posted on Mar 20, 2013

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Gas cap light stays on


Take off your gas cap and put it back on if that does not fix it so the light goes off replace the gas cap. This light usually indicates. A problem with the gas cap. It maybe on crooked or is not sealing properly in which case it would need to be replaced. It may need to be driven a few miles before the light goes off

Jul 27, 2015 | Cars & Trucks

2 Answers

How to reset Service Engine Soon light after replacing gas cap? Took to AutoZone when the Service Engine Soon light came on Error code P0440.


Disconnect the negative battery cable for 30 minutes. Reconnect after and the code will clear. However if the problem persists, the code will come back with in 20 miles or 30 minutes.

Aug 02, 2014 | 2000 Buick Regal LS

1 Answer

My check engine and check fuel cap light keep coming on after i changed the gas cap twice and reset the light it came back on what could this be. I drive a 06 lincoln navigator


You need to diagnose any codes you get
& smoke test the evap system, to find a
problem

Seldom does throwing on parts with a name similar
to a code work

Codes have nothing to do with installing parts

Clearing codes, clears all data needed to diagnose
the failed system & the evap system only runs every few
days,so you done as far as codes helping

Mar 22, 2014 | 2006 Lincoln Navigator

1 Answer

Engine light


Ok what about transmission codes most obd2 readers wont read trans codes or its a short in the computer

Mar 10, 2014 | 2007 Saturn VUE FWD 4

1 Answer

I have a 2006 Saturn Relay with just over 70k miles. The "check gas cap" came up on screen after a few days the check engine light came on. was at a friend's who has a code reader and he...


The P0455 code indicates a leak in the evaporative gas system.

A loose, improprely seated, or defective gas cap will set the code in the computer.

Insure the gas cap is on and working as it should most caps gives a ratcheting clicking sound when seated. Inspect the cap for any damage and if found replace it.

If in doubt replace the gas cap.

Aug 03, 2011 | 2006 Saturn Relay

1 Answer

P1456


code P1456 set when there's small leak in the fuel tank system.
Most known reason for P1456:
-Didn't tight fuel cap on until it click for more that 3 time after fueling up and drove the car too long with cap loose.
-or a bad gas cap.
I'll try tighting the gas cap.
clear check engine.
if code come back, replace gas cap and clear check engine light again.

Dec 15, 2010 | 2001 Honda Odyssey

2 Answers

Engine light on not flashing


you will have to have a scan tool hooked up to retrieve the code that triggered the light to go on,then you can clear the code to see if it reappears on not

Nov 21, 2009 | 2002 Dodge Caravan

1 Answer

2007 range rover check engine light is on! 35,000 miles


Take it to a Shucks auto supply and have them read the code for free before you take it the the dealer and pay large fee. The typical check engine light code comes on when and with that low of miles might be, just not tighten the gas cap enough. Make sure you hear the gas cap click at least 3 times after filling up. It might be that simple, it may take another 100 miles or so but it possibly will clear the code on its own. That's all mine was. When they read the code and they say its fuel related, good chance that it is. FYI, I'm sure your also always using super unleaded and not going to Arco for gas right?? Good Luck.

Jun 05, 2009 | 2008 Land Rover Range Rover Sport

2 Answers

Check engine light on. Code P0440.


wow thermostat >>>> shucks i believe its evep emissions code like faulty gas cap ....you can reset any computer the chck eng light will come on in 50 to 100 miles if not fixed....

May 07, 2009 | 2001 Buick Regal

1 Answer

2004 Audi allroad V8 Check Engine Light ON: 65,000 miles.


It can be your CO2 sensor. And another one that all ways makes the check engine light come on is your gas cap be for you turn your car on make sure your gas cap is on like 3 clicks then go clear the codes. If that doesn't help then good luck

Apr 13, 2009 | 2004 Audi allroad

Not finding what you are looking for?
1998 Cadillac DeVille Logo

Related Topics:

249 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts

yadayada
yadayada

Level 3 Expert

60792 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

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

Answer questions

Manuals & User Guides

Loading...