Car start and immediately shuts down.

Asked by Apr 08, 2019 at 07:27 AM about the Audi A4

Question type: Maintenance & Repair

The car starts and runs for only 2 or 3 seconds then stops.

2 Answers

87,785

This is frequently a faulty mass airflow sensor or a faulty ignition coil, or maybe the fuel pump relay. There could be a lot of other causes, but these are the most common.

1 people found this helpful.

I have just had the same problem, what I found was the Crank sensor was covered with iron filings. Clearly picked up from the flywheel debris. Cleaned up now, but the hex bolt was the devils own job to remove. I ended up bending an old Allen key into shape and using a pair of mole grips to turn the small end of the key to loosen the bolt. Getting to the sensor required a lot of water pipe removal and the unbolting of the oil filter housing and associated water cooler. Happy now the mystery is solved, as this has taken several months and the purchase of a ODBEleven as an ordinary ODB reader did ot show the Crank sensor intermittent fault.

Your Answer:

CarGurus Experts

  • #1
    Deathjam4
    Reputation
    8,030
  • #2
    lukeyramone
    Reputation
    1,010
  • #3
    Josh Holder
    Reputation
    830
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used BMW 3 Series
162 Great Deals out of 2,605 listings starting at $2,850
Used Audi A6
24 Great Deals out of 194 listings starting at $2,995
Used Audi A5
31 Great Deals out of 268 listings starting at $9,495
Used Mercedes-Benz C-Class
109 Great Deals out of 1,822 listings starting at $3,090
Used Audi S4
13 Great Deals out of 120 listings starting at $8,995
Used BMW 5 Series
39 Great Deals out of 631 listings starting at $2,299
Used Audi A3
41 Great Deals out of 433 listings starting at $3,300
Used Honda Accord
58 Great Deals out of 1,968 listings starting at $1,495
Used Audi Q5
68 Great Deals out of 1,127 listings starting at $6,377
Used Mercedes-Benz E-Class
56 Great Deals out of 822 listings starting at $4,998
Used Audi A7
7 Great Deals out of 134 listings starting at $13,999
Used Dodge Charger
45 Great Deals out of 861 listings starting at $4,900
Used Ford Mustang
40 Great Deals out of 1,782 listings starting at $5,750
Used Toyota Camry
67 Great Deals out of 1,682 listings starting at $2,888
Used Audi Q7
41 Great Deals out of 596 listings starting at $3,900

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. Content will be removed if CarGurus becomes aware that it violates our policies.