I have a 2003 taurus that won't start

Asked by Nov 14, 2012 at 06:02 PM about the 2003 Ford Taurus SES

Question type: Maintenance & Repair

car was running ruff  then quit running. 4 codes p0305 and p0306 cylinder 5 & 6 misfire.
p0316 misfire on start.  p1151 undefined lack of H02S21 switches/ sensor , lean
I put new plug wires and plugs and still it won't start
I spray a little starting fluid and got a very small ignition but no engine running time at all

3 Answers


Sounds like fuel pump


The fuel pump is located under your backseat you cant access it from there but, what u could do is put your ear against the back seat around the middle of the seat, have someone turn the key on and off a listen for the fuel pump, they are quite loud with your ear that close, if you dont hear anything chances are it is fuel pump, there is a fuel pump relay in the front under the hood in your fuse box, however with all the miss fire codes u were getting and the fact that it wont run now, tells me its the fuel pump, low fuel preasure can cause misfires, it has happened to me.

Best Answer Mark helpful

Thank You, I removed the tank and replaced the fuel pump. I also replaced the fuel filter. The car started right up. It took a few miles for the engine to stop running rough ( less than 10). I had to clear the misfire codes again. now it is running OK

Your Answer


Looking for a Used Taurus in your area?

CarGurus has 15,070 nationwide Taurus listings starting at $1,800.


Ford Taurus Experts

  • #1
    Tom Demyan
  • #2
  • #3
View All

Related Models For Sale

Used Chevrolet Impala
577 Great Deals out of 34,539 listings starting at $900
Used Ford Explorer
1,231 Great Deals out of 69,461 listings starting at $1,000
Used Ford F-150
3,285 Great Deals out of 221,646 listings starting at $1,200
Used Ford Mustang
594 Great Deals out of 39,478 listings starting at $1,895
Used Chevrolet Malibu
1,061 Great Deals out of 62,287 listings starting at $880
Used Honda Accord
1,102 Great Deals out of 73,579 listings starting at $1,100
Used Toyota Camry
1,074 Great Deals out of 86,827 listings starting at $800
Used Ford Focus
803 Great Deals out of 62,390 listings starting at $900
Used Nissan Maxima
321 Great Deals out of 21,816 listings starting at $1,200

Used Cars For Sale

2017 Ford Taurus For Sale
12 Great Deals out of 3,282 listings starting at $15,990
2016 Ford Taurus For Sale
17 Great Deals out of 1,276 listings starting at $14,199
2015 Ford Taurus For Sale
40 Great Deals out of 1,542 listings starting at $8,500
2014 Ford Taurus For Sale
50 Great Deals out of 1,070 listings starting at $6,900
2013 Ford Taurus For Sale
47 Great Deals out of 1,214 listings starting at $5,988

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.