02 ford expedition cranks but wont start.


Asked by Sep 07, 2016 at 07:31 PM about the 2002 Ford Expedition XLT 4WD

Question type: Maintenance & Repair

I had to rebuild my 5.4 POS triton motor in my 02 ford expedition. Now it wont start. I have replaced the crank and cam position sensors, I tested all the fuses and fuel relay and pcm relay and pcm diode is new.  I replaced all the wires on the engine wire harness and rang them all out and tested resistance- got .2 ohms. I tested fuel cut off switch and theres power past the switch. I get 12 volts at every coil pack and injector. the fuel pump comes on for 1.5 seconds when turned on. when its cranked over I only get 1 pulse flash from noid light at injector 1. if turned off then on again it will flash 1 time again. no pulses to coil packs. I cleaned the ground connections and all are tight. I tested the fuel pressure at the shrader valve on the fuel rail and got no pressure but the instructions on the fuel guage says the motor must be running to read any pressure??  I'm lost now and don't know where to look next. when I tried starting fluid it tried to fire for a second but wouldn't start. now even starting fluid wont do anything.   Please help.

2 Answers


did you put in new timming chain in if so could be out of time when you put back together.


complete rebuild and timing marks all lined up perfect. I had another mechanic double checking all the steps. its strange that the fuel pump works (only 2 years old) but I cant get a pressure reading at the fuel rail. the heads and were machined and set at tdc. its a 2 chain system with single overhead cams. the new chains have stamped marks and colored links, its almost impossible to get it wrong. could the injection system be bleeding pressure somewhere and that shuts down the system? Bad or leaky injectors maybe? over the last 2 years Ive had to put over $6000 into it. nearly 80% under the hood is new or rebuilt. book is $4500 so I don't know when to stop and part it out. its so close to running and its in excellent condition.

Your Answer

Add photo

Related Questions

Search Ford Expedition Questions

Ford Expedition Experts

#1 T_S_T
Reputation 1,170
#2 oldtimer37
Reputation 1,020
#3 lightGear
Reputation 990
View All

Related Models For Sale

Used Ford Explorer"
1,361 Great Deals out of 71,754 listings starting at $300
Used Chevrolet Tahoe"
1,074 Great Deals out of 36,043 listings starting at $1,700
Used Chevrolet Suburban"
660 Great Deals out of 24,063 listings starting at $1,500
Used Lincoln Navigator"
124 Great Deals out of 6,055 listings starting at $1,999
Used Ford F-150"
3,257 Great Deals out of 216,652 listings starting at $1,500
Used GMC Yukon"
566 Great Deals out of 19,458 listings starting at $2,500
Used Cadillac Escalade"
360 Great Deals out of 11,306 listings starting at $2,999
Used Ford Excursion"
14 Great Deals out of 868 listings starting at $3,995
Used Toyota Sequoia"
171 Great Deals out of 6,810 listings starting at $2,500
Used GMC Yukon XL"
235 Great Deals out of 14,198 listings starting at $2,575
Used Dodge Durango"
404 Great Deals out of 22,641 listings starting at $1,400
Used Ford F-250 Super Duty"
440 Great Deals out of 42,987 listings starting at $2,250
Used Toyota 4Runner"
366 Great Deals out of 18,995 listings starting at $2,200

Used Cars For Sale

2017 Ford Expedition XLT 4WD For Sale
631 listings starting at $38,569
2016 Ford Expedition XLT 4WD For Sale
193 listings starting at $30,999
2015 Ford Expedition XLT 4WD For Sale
12 Great Deals out of 205 listings starting at $25,499
2014 Ford Expedition XLT 4WD For Sale
58 listings starting at $22,900
2013 Ford Expedition XLT 4WD For Sale
6 Great Deals out of 77 listings starting at $17,840