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


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?


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.


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.


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?


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


Looking for a Used Explorer in your area?

CarGurus has 64,621 nationwide Explorer listings starting at $2,000.


Ford Explorer Experts

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

Related Models For Sale

Used Ford Expedition
471 Great Deals out of 20,227 listings starting at $2,500
Used Jeep Grand Cherokee
843 Great Deals out of 74,143 listings starting at $500
Used Ford F-150
2,523 Great Deals out of 220,358 listings starting at $1,222
Used Chevrolet Tahoe
590 Great Deals out of 37,467 listings starting at $1,699
Used Dodge Durango
234 Great Deals out of 24,698 listings starting at $1,500
Used Toyota Highlander
449 Great Deals out of 46,366 listings starting at $1,750
Used Honda Pilot
430 Great Deals out of 39,592 listings starting at $999
Used Ford Escape
929 Great Deals out of 106,091 listings starting at $550
Used Toyota 4Runner
311 Great Deals out of 31,474 listings starting at $2,595
Used Nissan Pathfinder
314 Great Deals out of 22,341 listings starting at $1,988
Used GMC Yukon
377 Great Deals out of 19,007 listings starting at $2,500
Used Chevrolet Silverado 1500
2,175 Great Deals out of 151,474 listings starting at $1,995

Used Cars For Sale

2018 Ford Explorer For Sale
34,193 listings starting at $23,218
2017 Ford Explorer For Sale
153 Great Deals out of 7,910 listings starting at $17,495
2016 Ford Explorer For Sale
118 Great Deals out of 3,901 listings starting at $12,500
2015 Ford Explorer For Sale
304 Great Deals out of 6,901 listings starting at $9,500
2014 Ford Explorer For Sale
130 Great Deals out of 3,222 listings starting at $9,995

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.