my 2003 ford explorer 4wd 4.0 when you start it, it will idle but when you push the gas peddle it will stall out everytime.

85

Asked by Feb 04, 2014 at 12:10 AM about the 2003 Ford Explorer XLT V6 4WD

Question type: Maintenance & Repair

when you start i, it will idle but it idles rough then when you push the gas peddle it stalls out everytime. today i changed the map sensor and the pronblem still exsists, i have also changed the egr valve, fuel pressure regulator, and the crank shaft sensor. i had to change the engine in it and when i did itr ran fine when i started it and drove it for about the first half hour and i was going up a slight slope and when i pushed the gas it had no power and stalled out almost as if it was out of gas. i went and bought gas and had to have it pulled back home. now everytime we start it, it idles rough then when i push the gas it dont move and quits.

5 Answers

85

i have changed the idle air control and it still stalls out when i push the throttle uner the hood also. could it be the furl pump i have tried almost everything. i bought it from a car lot last jan. and paid almost 5k for it and i've put another 5k in it. i just put the new motor in on sat. everything ran fine at first but after about a half hour i coudnt go anywhere. there was no power when you pushed the gas. then after we pulled it back home evrytime you start it, it will idle but it idles rough then when you push the throttle it dies. its like its getting to much air or not enough. or like its not getting the right amount of gas. today when we put the map sensor on we started it, it started right up but still idle rough and then when you push the throttle it died again. when we tried to start it back again you could smell the gas fumes like it was flooded. i have no idea what is wrong with it now. the only other thing i can think of is the fuel pump but it was like it happened instantly. it has me stumped at this point and ready tjo just junk it.....

8 of 8 people found this helpful.

OKAY....okay, we Know this is the Intake Air temperature sensor...because it's goin' RICH on us~ https://www.google.com/#q=2003+ford+explorer+xlt+v6+intake+air+temp+se nsor&tbm=shop&spd=8659120339351293236

4 of 4 people found this helpful.
20,595

fuel pressure and volume check at fuel rail, also, first check the distributor for proper setting turn slightly while running or align by sight

2 of 2 people found this helpful.
50

If it runs good and always stalls when ther throttle is just opened quite often the TPS (throttle position sensor) developes a bad spot just off idle. Usually if this is the cause if you accelerate hard it will be past the bad spot and run but if you just touch the throttle it will stall. Worth checking out, It can be tested with a scope on the center wire(signal). It should sweep up and doun to 5 volts max when the throttle is opened and be around .75 to 1 volt at idle..

I have a 95 with the 4.0. I have had a few problems out of it lately. although I only paid $500 for it and its in awesome shape inside and out. an older guy owned it with 125k on the dash. the engine would surge at idle when cold or first start after sitting, I cleaned the iac, throttle body, map sensor. then replaced the tps and iac and it runs like a new car, btw the bad tps made my tranny slip and change at random rpm..... now it's a very reliable vehicle. ... my 150 mile day champ...

Your Answer

Add photo

Related Questions

Explorer

Looking for a Used Explorer in your area?

CarGurus has 70,249 nationwide Explorer listings starting at $997.

ZIP:

Search Ford Explorer Questions

Ford Explorer Experts

#1 OJ
OJ
Reputation 10,330
#2 Tom Demyan
Tom Demyan
Reputation 4,170
#3 tennisshoes
tennisshoes
Reputation 2,380
View All

Related Models For Sale

Used Jeep Grand Cherokee
1,022 Great Deals out of 72,251 listings starting at $700
Used Ford Expedition
440 Great Deals out of 24,828 listings starting at $1,150
Used Chevrolet Tahoe
558 Great Deals out of 31,371 listings starting at $1,500
Used Ford F-150
2,064 Great Deals out of 207,332 listings starting at $1,499
Used Dodge Durango
266 Great Deals out of 21,290 listings starting at $1,499
Used Toyota Highlander
362 Great Deals out of 26,007 listings starting at $2,800
Used Ford Escape
1,438 Great Deals out of 90,835 listings starting at $900
Used Honda Pilot
390 Great Deals out of 22,299 listings starting at $1,500
Used Toyota 4Runner
260 Great Deals out of 19,017 listings starting at $2,500
Used Nissan Pathfinder
282 Great Deals out of 22,987 listings starting at $1,499
Used GMC Yukon
382 Great Deals out of 19,295 listings starting at $2,000
Used Ford Explorer Sport Trac
56 Great Deals out of 1,748 listings starting at $2,500

Used Cars For Sale

2017 Ford Explorer For Sale
67 Great Deals out of 42,785 listings starting at $22,123
2016 Ford Explorer For Sale
167 Great Deals out of 4,823 listings starting at $14,400
2015 Ford Explorer For Sale
147 Great Deals out of 4,775 listings starting at $10,450
2014 Ford Explorer For Sale
251 Great Deals out of 6,065 listings starting at $7,990
2013 Ford Explorer For Sale
82 Great Deals out of 2,849 listings starting at $7,950

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.