Check fuel cap warning came on[

45

Asked by Feb 08, 2013 at 10:20 PM about the 2005 Pontiac G6 Base

Question type: Maintenance & Repair

Fuel cap worn out replaced it,Now it idles too high and no fuel pressure.when fuel cap is taken off no  pressure escapes.

4 Answers

get that cap from the dealership?

1 of 1 people found this helpful.

This obsession with not putting unburned petrochemicals into the atomsphere has us putting a device that makes it breathe it's own output...the EGR..of all tarnation, look-here, have a source of failure! The cap on my toyota seals completely, and don't know if this is right, kinda obsessive, doncha think? The Japanese will stop at nothing to comply with regulations. seems like it should 'breathe' a little, seeing as this is an American buggy, cut us some slack...to answer your question, IT SHOULDN'T. The fuel pump is designed to draw the gas no matter what, pulling the tank into a vacuum. It is designed to!...have to admit turning the cap and hearing ssssshhhhsss for more than a couple of seconds is a bit disconcerting.

my MINI just has an ordinary vented cap. bully for the sportscars!

8,765

NO new car (and that means built after 1970, by the way) has a self venting fuel cap. They should all seal tightly. That is why gas tanks have vent lines connected to a charcoal canister under the hood. Vapors are trapped in the charcoal and are then sucked into the engine to be burned off. Over filling the tank can flood the canister, and then you have to replace it. Fuel injected cars NEED to have the system under slightly positive pressure. The pump, regulator and venting system are calibrated to work together. The 'hiss' should last no more than about 1 second when you take the cap off. Of course, that is not applicable if the car is not running. The vent system should release the pressure when the engine is turned off. In this case, I would guess that you have the incorrect cap or the venting system is not working correctly. Make sure you get the proper replacement cap.

Your Answer

G6

Looking for a Used G6 in your area?

CarGurus has 3,916 nationwide G6 listings starting at $1,295.

ZIP:

Pontiac G6 Experts

  • #1
    dandyoun
    Reputation
    620
  • #2
    Norm Davis
    Reputation
    590
  • #3
    Andy Huhn
    Reputation
    560
View All

Related Models For Sale

Used Pontiac Grand Prix
32 Great Deals out of 2,705 listings starting at $1,491
Used Chevrolet Malibu
1,053 Great Deals out of 70,544 listings starting at $2,499
Used Chevrolet Impala
521 Great Deals out of 34,032 listings starting at $950
Used Ford Mustang
693 Great Deals out of 37,655 listings starting at $895
Used Nissan Altima
941 Great Deals out of 74,672 listings starting at $1,300
Used Honda Accord
1,089 Great Deals out of 60,890 listings starting at $1,099
Used Honda Civic
784 Great Deals out of 72,342 listings starting at $1,400
Used Pontiac G5
10 Great Deals out of 456 listings starting at $2,000
Used Dodge Charger
415 Great Deals out of 27,643 listings starting at $1,979
Used Pontiac GTO
9 Great Deals out of 472 listings starting at $5,995
Used Ford Fusion
1,009 Great Deals out of 70,464 listings starting at $1,595
Used Toyota Camry
1,037 Great Deals out of 72,820 listings starting at $295

Used Cars For Sale

2010 Pontiac G6 Base For Sale
4 Great Deals out of 196 listings starting at $3,499
2009 Pontiac G6 Base For Sale
12 Great Deals out of 392 listings starting at $1,295
2008 Pontiac G6 Base For Sale
11 Great Deals out of 453 listings starting at $1,700

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.