Question about 2009 Volvo S80

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Can a lose gas cap cause the engine light to come on on a 2009 280 volvo

I think I recall on a former volvo that my gas cap was loose (not tighte enough) and it's caused my enginn light to come on. Is this true?

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Yes, the Check Engine Light (CEL) triggers when something affects the emissions system. The gas cap is part of that, what with sealed fuel tanks (so no harmful hydrocarbon vapors can escape) and thus if the cap isn't on securely, the tank isn't sealed and you get a code.

The code can sometimes 'stick' until you've completed five drive cycles. One cycle is "start engine, drive to destination, stop engine" so some tooling around town for holiday gifts and the light should go off.

Alternatively, shut off the engine, pull the key out and WAIT 30 MINUTES, then disconnect the NEGATIVE battery post for an hour.

That should clear the light.
Of course, if there's another issue, the light will come back on. Check with your local Volvo mechanic if they can use VIDA software with the DiCE connector to read the actual problem code. That will tell you specifically what is wrong with the car.

THe cheap and easy fix (if the car otherwise runs fine) is to check the cap.

Posted on Nov 26, 2014

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  • Master
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Answer to this is YES. Replace cap with about 3 clicks this is enough. If your check engine light is on the cars computer wil erase after a few miles. GOOD LUCK FRIEND.

Posted on Nov 13, 2014

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6ya6ya
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Posted on Jan 02, 2017

repairpal
  • 128 Answers

SOURCE: how do you reset check engine light prob. fixed

I don't believe that a 199 will set a code for a loose cap. Either way, pull the fuse for the ECM (Electronic Control Module)

Bret
RepairPal.com

Posted on Nov 23, 2008

sleepygsx
  • 98 Answers

SOURCE: 1999 volvo s80 t6

just put a compression gauge on each cylinder that will let you know if engine has a bent valve, gauges are relatively cheap. if the belt didn't have anything to do with your timing belt i doubt you have a bent valve, any check engine light? do you have spark? fuel pump turning on when key is turned to on position?

Posted on Dec 09, 2008

  • 4 Answers

SOURCE: VOLVO S40 DOESNT START OCCASIONALLY

sounds like you need a new battery, it probably isnt running enought cranking amps to start your car, try a different battery and it should start fine

Posted on Dec 22, 2008

onyeredson
  • 404 Answers

SOURCE: 1993 volvo 850 glt

Hello,
Have you made sure the rotor is turning in the distributor, as this sound like a cambelt failure.
Sorry to bear bad tidings if this is so.
Paul 'W'
Onyer~EDson(:0) {#><U.K.
Please remember to politely rate my effort!

Posted on Jan 21, 2009

  • 215 Answers

SOURCE: Hi, I have a 94 Volvo 850 Turbo. When it is in

is it manuel or automatic? sounds like internal trans gear problem. gonna have to bite the bullet and take it to transmission shop

Posted on Feb 22, 2010

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Can a lose gas cap cause the engine light to come on


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