During hot weather it acts like it runs out of gas when the tank is under 1/2 full, if you fill the tank back up runs great,

Asked by Mar 17, 2017 at 12:32 PM about the 2005 Pontiac Montana SE

Question type: Maintenance & Repair

1 Answer


Well the fuel pump is cooled and lubed by the gas in the tank, however it only takes about 1-2 gallons to do that, but there may be a remote chance the fuel pump is failing, you can get the fuel pressure checked, if it's out of spec replace it. You don't mention any trouble codes or check engine light being on, so i don't think this will have anything to do with the EVAP system. Get the fuel pressure tested (you can buy the gauge as it's fairly cheap, or rent/borrow one from most auto parts stores) and proceed from there.

Your Answer

Pontiac Montana Experts

  • #1
  • #2
    Robert Reed
  • #3
    Jim Space
View All

Related Models For Sale

Used Dodge Grand Caravan
312 Great Deals out of 14,961 listings starting at $2,000
Used Dodge Durango
151 Great Deals out of 1,095 listings starting at $1,888
Used Chrysler Town & Country
34 Great Deals out of 596 listings starting at $4,995
Used Chevrolet Uplander
139 listings starting at $2,495
Used Chevrolet Tahoe
6 Great Deals out of 750 listings starting at $3,995
Used Kia Sedona
15 Great Deals out of 576 listings starting at $3,995
Used Dodge Caravan
95 listings starting at $3,900
Used Chevrolet Silverado 1500
179 Great Deals out of 9,745 listings starting at $1,700
Used Chevrolet Equinox
121 Great Deals out of 5,509 listings starting at $800
Used Toyota Camry
99 Great Deals out of 2,310 listings starting at $2,000
Used Nissan Quest
70 listings starting at $2,500

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.