I have a 2003 ford explorer I changed the fuel pump it wouldn't start. I changed the crank sensor and module and it still want start.

Asked by Oct 11, 2015 at 10:36 AM about the 2003 Ford Explorer XLT V6

Question type: Maintenance & Repair

7 Answers

46,755

When you say won't start, do you mean it cranks over forever and won't fire up, or you turn the key and get nothing at all?

1,735

first you need to figure out whats lacking, Is it getting fuel? does it have the proper fuel pressure? Is it getting spark? You need fuel air and spark to make this run. As a quick test you could do is remove the air intake going to the throttle body, then have someone crank it over, spray some quick start into the throttle body, do not go crazy with the quick start, it is very flammable. and stand to the side and reach over do not stand in front while doing this, If it fires up and tries to run you know its a fuel related problem

@ Reelin68 its trying to start.

46,755

Okay. You can try the quick start like StevenB suggested. That will let you know if it's a fuel issue. Also pull a plug wire and see if you have spark. That's the next piece of the puzzle. By chance do you have a security system? I have gone over this issue with people and they usually forget to mention it. Most of the time the vehicle is not starting due to some security malfunction. Or they recently did work to it and disconnected the battery which triggered the security system.

1,735

As Reelin said there may be a security issue, Do you have a theft light flashing, are you trying to use another key? When it is a security problem, it sometimes starts for a second then shuts down. You can also check with a noid light or a test light to see if you have injector pulse, that's what the security system shuts down

Tried quick start it didn't work. Could it be the timing belt?

1,735

To start with ford Explorer would not have a timing belt, If the engine did not fire up briefly lets now look at the ignition part of it. Reelin did mention about checking for spark, did you pull a wire like he said put a sparkplug in the end of the wire and hold the end of the plug to something metal on the engine have somebody crank the engine over to see if the plug sparks or not

Your Answer:

Explorer

Looking for a Used Explorer in your area?

CarGurus has 67,606 nationwide Explorer listings starting at $800.

ZIP:

Ford Explorer Experts

  • #1
    OJ
    Reputation
    12,480
  • #2
    Tom Demyan
    Reputation
    4,980
  • #3
    tennisshoes
    Reputation
    2,760
View All

Related Models For Sale

Used Ford Expedition
395 Great Deals out of 22,358 listings starting at $1,000
Used Jeep Grand Cherokee
874 Great Deals out of 76,615 listings starting at $900
Used Ford F-150
2,300 Great Deals out of 208,486 listings starting at $1,300
Used Chevrolet Tahoe
522 Great Deals out of 37,993 listings starting at $1,243
Used Toyota Highlander
389 Great Deals out of 51,407 listings starting at $2,000
Used Dodge Durango
289 Great Deals out of 25,709 listings starting at $1,750
Used Ford Escape
999 Great Deals out of 111,788 listings starting at $1,000
Used Toyota 4Runner
268 Great Deals out of 34,349 listings starting at $1,995
Used Honda Pilot
374 Great Deals out of 44,331 listings starting at $1,900
Used Nissan Pathfinder
286 Great Deals out of 24,031 listings starting at $1,995
Used GMC Yukon
334 Great Deals out of 21,444 listings starting at $2,450
Used Ford Explorer Sport
132 listings starting at $1,900

Used Cars For Sale

2018 Ford Explorer For Sale
7 Great Deals out of 38,706 listings starting at $22,572
2017 Ford Explorer For Sale
162 Great Deals out of 5,914 listings starting at $17,908
2016 Ford Explorer For Sale
173 Great Deals out of 4,243 listings starting at $14,870
2015 Ford Explorer For Sale
239 Great Deals out of 7,018 listings starting at $9,500
2014 Ford Explorer For Sale
97 Great Deals out of 2,833 listings starting at $8,800

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.