Ford F-150 - 1997-2003 :: 4.6L Truck Just Won't Start
Nov 16, 2015
2002 Model, F150, 4.6L Triton....
Early last week one day my truck just wouldn't start. I had driven it the day before. but that day nothing. It would spin over just not start. the following day though, it started as always, no hesitation and run smooth. But the was the last day it has ran.
Since then I have checked the relays and fuses. I have checked the inertia switch (pass. side kick panel). Removed the cap on the schrader valve on the fuel rail. (no pressure)
I have sprayed starting fluid into the throttle body and it starts for 1 to 2 seconds. (dies once starting fluid is gone). I have changed the fuel filter and pulled the bed and changed out the fuel pump. I'm thinking about trying the fuel pressure regulator next.
Just not real sure where else to go if that doesn't work.....
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When I want to start the truck dix nothing and I don't know why? I have to tell you that I have changed my tranny ...
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First of it's a 2003 with the 4.6. I replaced a bad alternator a couple months ago and all was fine. On the way home today the radio volume went quiet and all the dash gauges were dead. Truck died and wouldn't even try to start, no starter clicking or anything. A couple times the gauges did the "sweep" but still no start, not even a starter click. Barely even operated the hazard lights. Towed it home and hooked up the jumper cables to my 7.3 Excursion. Truck started right up and I left if hooked up for a couple minutes hoping to get enough charge in the battery to get it in the garage.
Unhooked the jumper cables, got in the truck and noticed the voltage gauge was reading nothing, tried to move it and it died. Hooked the jumper cables back up and let the Excursion charge it for about 5 minutes. Started, drove it to the garage (100ft) and backed it in. Noticed the voltage gauge was where it should be. Turned it off and back to run (didn't start) and the voltage gauge was reading good and it started right up.
Now, it doesn't appear that the battery or alternator is bad. Is there something else I should be looking at? I can take the alternator off and have it checked but don't want to go through the work if not needed to chase a ghost. Advance auto Tough One alternator BTW.
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So I just bought a 2001 F-150. It has the 4.6 v8 it's a 4x4 automatic. Sometimes i'll go to start it in park but nothing will happen. But if I put it in neutral. It'll start right up.
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I have a 2001 ford F150 with a 5.4 2WD, with a starting problem. Last Friday I went to leave work the truck cranked but did not start, turned the key off and tried again same thing, on the third try it started. Drove it home 30 miles with one stop on the way, restarted just fine. At home in the driveway I restarted it 5 times without a problem so I was thinking it was just a glitch. Did not drive the truck all weekend thinking the problem was fixed.
Monday morning leave for work and everything was fine, went to start the truck in the afternoon and the same problem as listed above (3 or 4 tries and it started). It home again in the driveway restarts every time. I do not have any check engine light on but I thought I would still plug in my code reader NO CODE. Where to start troubling shooting this problem?
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I have a 1997 f150 that as soon as I hook up the battery, the truck tries to start itself, what would cause this?
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2001 f150 4x4 5.4 205k ... This truck is not my daily driver but I use it about once or twice a week. Last night I drove it to the store and it ran great. As good as ever.
This morning it won't start. It cranks and the battery is strong but no bang. It was cold. Just below freezing for the first time this year. No blown fuses where would you start?
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I have a 97 f150 with a 4.9..... I drove it less than a half a mile and shut it off. when I got back in it to start it up it wouldn't do anything like the battery was dead but all the electrical worked but it would not turn over. after about 4 hours when I returned, it started just fine. drove it straight home and shut it off and immediately tried to start it again and had the same issue. What the culprit may be ?
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Last two weeks I have had my truck randomly not want to start while in park. If I shift to neutral it has so far started up everytime, but as of today I was at work at a security gate that sits at the bottom of a mild to moderate incline and the moment after I had put the truck in park and lift off of the brakes the truck clicks moves forward making a clicking sound life the parking prawl is not fully engaging or something.
So doing some google searching the closest answer come up with is that its a failing/out of adjustment Transmission Range Sensor. Does this sound right? I had the tranny rebuilt last year and only have put on 7,500 to 10,000 miles so its not a matter of age since it looks like the sensor was replaced at that time.
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I did the power door fix, wrapping the door actuator motor 'resistor' in foil, and all was good. This morning I started the truck to move it, all fine, then pulled the door panel off to readjust the window guide in the door as windows were binding. After adjustment I went to turn on the ignition to test the window and the Theft light is on, and the truck won't start! It's a1999 F150, 5.4L.
1. The power comes on when I turn the key to ON, then when I turn the key to start the truck I hear nothing, no clicking, and the power goes off.
2. After leaving the key in the On position for 45 seconds, the Theft light blinks rapidly, the odometer is all dashes, the RPM and Speedometer gauges swing to max, then back to 0.
3. When turning the key to start the truck, there's a 1 click sound (solenoid?), then all power goes off on the instrument panel, no cranking.
What might have gone wrong here? Could the wrapping of the 'resistor' in foil in the door actuator have caused an electrical short? [URL] .....
Below happened previously but not any more...
4. When I turn the power back on to ON and push the buttons for the windows, the power seems to cycle On / Off in 2 second intervals, as the window goes down a bit, then stops, then goes down a bit, stops etc. and the lights on the instrument panel dim / go on / dim in the same cycle.
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Last night my boyfriend took a friend to the check cashing store, truck ran fine. shut it off, and when he came out the truck would not start. it cranks over but won't start. Took ignition coil off and had it tested but its fine. What else could be wrong or what can i do to try to get it to start again.
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I ran out of CNG - truck won't start on reg fuel. Fuse good, relay clicking and I believe I have voltage going to plug connector going to tank. However, I do not have any wiring diagram to know what I'm looking for. The plug is four wire - yellow- 11 volts, red / black stripe 7 volts, black / red stripe and black wire no volts. What checks can I make before dropping the fuel tank and pulling fuel pump? 2003 F150 7700 Bi-fuel ....
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I went to walmart and let the engine run for a while and shut it off. It would not start until it cools off. Now that its cool it starts fine. It just started doing it. Come to think of it i did get some gas in it.
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2002 F150 5.4L. Keeps blowing fuse in location #30 which is a 30a fuse for the following:
Passive anti theft transceiver
Cluster
Ignition Coils
Powertrain control module relay
Coil on plugs
Radio noise capacitor
ECC diode
Could this be a grounding spark plug wire?
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It's a 97 with the 4.6 v8. I turn the key and the lights in the cab go out. A voltmeter on the battery reads 12.53 and doesn't drop at all when the key is turned. I took the alternator out and had it tested with a pass. The battery was replaced 2 months ago. I can hear the relay in the fuse box clicking away after the key is returned to the off position. Is my next step a new starter? Solenoid? Relay? This all just happened overnight. And it's only got 115,000 miles. The starter does not turn over...
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Yesterday I decided to tune up my 2003 5.4 for the 1st time at 82k miles. I replaced all 8 coils with MSD coils & motorcraft plugs. After doing so I went to turn over the ignition & got 1 single click, motor wouldn't even turn over. Battery is 3 months. Truck ran just fine prior to tune up other than the slight misfire I was starting to get.
When I was working on the passenger side I did disconnect the big bracket that had the multiple wire harness on the fire wall underneath the starter solenoid to gain access to the rear plug/coil. Where to start troubleshooting? I checked the fuses under the hood & dash but nothing looked blown.
On a side note I remember when I was putting everything away I tried to lock the truck with the Ford factory transmitter & it wouldn't lock?! I had to open the door & press the power lock button to lock the doors.
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How do you test the fuel pump regulator, the truck wont start. I tested the schrader valve and it does have pressure but didn't seem like much. (need a gauge) I replaced fuel pump a few years ago so was wondering about the regulator. Is there a test procedure?
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Not all the time, but I've noticed it after the truck has been driven - shut off - then started again within a few min period. When truck is cold or has been sitting for an extended it starts no problem. By "delayed" I mean once I try to start the truck it takes a sec or two longer than normal before it cranks. Then when it does start it will idle very low for a sec or two then pick up and act normal.
So far I've done this to remedy it:
- new fuel filter
- new air filter
- cleaned MAF sensor
- cleaned throttle body
- seafoam thru vac hose
Only thing else I suspect is weak fuel pump but looks like it was act up all the time not just when the truck is started back to back. Truck has good power when running, I did a couple short blasts up to 80mph and everything was fine.
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I bought the truck now it won't start has to fuel at the fuel rail cranks but won't start when I spray starting fluid it starts but won't stay running....
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Start truck cold, getting clicking noise...sounds like valve but runs great. Warms up and clicking goes away. Remove #1 spark plug and it shows build up of whitish carbon. Will remove the other spark plugs and check. Also starting to use half a can of oil a week. No leaks that I can see. Oil pressure gauge shows high...always has. Also, open door and get out after driving and smell oil. Wanted to make it to 400k but might not be able to with this issue.
Going to do a compression check to see what else is happening. Still have decent power. If cylinder pressure is good would it make since to do just a "top end" rebuild (if it is a valve issue? Should i pull it and do a complete rebuild? What does white build up on spark plug usually indicate?
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Have a 97 F150 4.2 that won't start. The lights come on in the interior. Dash lights all come on, turn the key and nothing. Replaced the solenoid on the firewall and no go. Was able to jump it at the solenoid on the firewall and it started. Not sure what's causing this.
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