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!

8,585

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

Add photo

Related Questions

  • Check fuel cap warning came on[ 4 answers

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

    2005 Pontiac G6 Base

    -

    Maintenance & Repair

  • Check Engine Light on after changing oil 15 answers

    I had to take my daughters car away from her. There was 0% oil life left and I dont know how long she had been driving it like that. I had the oil changed today and now the check engine light is on....

    2010 Pontiac G6 Base

    -

    Maintenance & Repair

  • dome light came on and now it won't turn off. 1 answer

    Went to store, came out and now my dome lights won't shut off.

    2007 Pontiac G6 GT

    -

    Maintenance & Repair

  • Check engine light P0013-P0014 1 answer

    My daughters 2008 Pontiac G6 check engine light came on,checked code came out P0013-P0014, replaced can shaft sensor light went out for 2 weeks then came on had code checked again P0013-P0014 came u...

    2008 Pontiac G6 GT

    -

    Maintenance & Repair

  • rattle & clunking in front end. at 46,000 miles & power steering light came on and steering is very loose? 14 answers

    We bought a 05 G6 GT with 46,000 miles. There was a loud noise in the back but it went away with new tires. Then we noticed a clunking and rattling at slow speeds in the front end. Also the power stee...

    2005 Pontiac G6 GT

    -

    Maintenance & Repair

G6

Looking for a Used G6 in your area?

CarGurus has 4,082 nationwide G6 listings starting at $1,975.

ZIP:

Search Pontiac G6 Questions

Pontiac G6 Experts

#1 dandyoun
dandyoun
Reputation 620
#2 Andy Huhn
Andy Huhn
Reputation 550
#3 Norm Davis
Norm Davis
Reputation 540
View All

Related Models For Sale

Used Pontiac Grand Prix
27 Great Deals out of 2,823 listings starting at $1,991
Used Chevrolet Malibu
1,161 Great Deals out of 79,219 listings starting at $2,500
Used Nissan Altima
1,296 Great Deals out of 75,736 listings starting at $1,695
Used Chevrolet Impala
611 Great Deals out of 35,546 listings starting at $899
Used Ford Mustang
717 Great Deals out of 44,995 listings starting at $1,500
Used Honda Accord
1,051 Great Deals out of 68,868 listings starting at $1,000
Used Honda Civic
871 Great Deals out of 85,333 listings starting at $500
Used Pontiac G5
12 Great Deals out of 461 listings starting at $2,350
Used Dodge Charger
529 Great Deals out of 28,912 listings starting at $2,500
Used Chevrolet Cobalt
57 Great Deals out of 3,833 listings starting at $500
Used Ford Fusion
1,324 Great Deals out of 76,763 listings starting at $1,500
Used Pontiac GTO
6 Great Deals out of 474 listings starting at $6,950

Used Cars For Sale

2010 Pontiac G6 Base For Sale
7 Great Deals out of 214 listings starting at $3,500
2009 Pontiac G6 Base For Sale
10 Great Deals out of 358 listings starting at $2,600
2008 Pontiac G6 Base For Sale
10 Great Deals out of 465 listings starting at $1,988

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.