Ford F-150 - 1997-2003 :: Theft Light Flashes When Driving
Nov 15, 2012
I have a 2001 F150 4.2 V6. Three days ago, I noticed the Theft light blinking while driving. At first, there was no issues with performance, although the blinking was most noticeable just as I tapped the accelerator at cruising speed.
I thought it may temporarily disconnect the battery, which I did. After hooking it back up, I went for a test drive. About five miles into the drive I picked up an intermittent, though somewhat steady skip--almost like a plug wire. Shortly thereafter, the flashing light returned.
I'm not sure if the two problems are connected (the light and skip) or if it's just a coincidence.
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I have a 2000 f150 with 200k miles. I have no spark and no gas at the fuel rail Schrader valve. I have replaced the shaft pos sensor, no start. I have checked the fuses and the relays. I have crawled under truck and listen for the fuel pump to turn on while someone turned the key to on and heard nothing. I have 2 keys and while turning the key to on and start, the THEFT lite flashes. I have checked the impact sensor on the passing sick panel, it hasn't been tripped.
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I own a 2000 f-150 7700 series with a 4in body lift. recently Ive had a problem starting (I believe it is from the shifter not recognizing im in park) but now my theft light flashes at me and there is a weird sound that sounds like a relay from under my steering column when i roll my windows down, move shifter around or turn on 4x4. also my radio stays one every once in a while after the key is turned all the way back to off, and windows wont roll down after i hear the relay sound. Ive read to tighten shifter linkage and will do that tomorrow to see if that fixes it.
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My 2001 f150 is not starting up. The anti theft light flashes and then eventually slows down and flashes one time, pauses and then flashes two more times. The odometer still shows my mileage as I know some people with this issue just get dashes. I know there are passive anti theft codes that can indicate what is wrong but cant find a chart with any info for all the codes. I'm going to assume my pats transceiver module is shot. Or maybe the key simply needs to be reprogrammed? I checked fuses, relays, etc and didn't see any that were blown. What could be causing it? Or maybe there's a relay I forgot to check out.
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I have an intermittent security system issue. I sometimes get a dotted line in odometer and rapidly flashing theft light.
Crank no start. After a time, the theft light flashes a code of 1 then 4. Research gives me the result that PCM did not power up.
Have pulled gauges. Fixed known cold solder joint issue. Checked all connectors and reinstalled. Truck starts fine about 7/10 tries.
I have replaced battery terminals. Removed cleaned and replaced all firewall grounds. Checked harness connection blocks and PCM connector. Made sure all under hood fuses and relays working.
Currently sitting in a parking lot waiting for it to decide to start again. Only one chipped key. Where to look next? 1999 F150 xlt 6 cylinder.
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...Battery is very weak also but had a couple questions...
I started by reading up on issue and 9 times out of 10 people were saying the fuel pump driver module causes the issue...
So I ordered a Dorman and plugged it in...I did not bolt it down...Just wanted to see if it would fix and nothing...
Now stuck on the starter...Top bolt is a huge nightmare.
Would a weak battery and bad starter cause theft light to flash or is my problem elsewhere?
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I have a 2000 3.0 manual tranny, the motor went in the truck months ago. I put a new motor in it but that took me many months to do. Now I just finished up putting it all back together and now it wont turn over, when the ignition is on the theft light flashes fast. could there be a reset procedure at all? i had the battery disconnected for months.
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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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On my new/used 2008 Escape XLT 2.3L 2WD. It flashes every two seconds, like the manual says. Lower left corner of instrument cluster.
But I don't recall the warning light flashing when I test drove it. But I did push the buttons on the keyfob and various places on the dash/instrument cluster to see what they did...
Is the anti-theft system an on/off affair? If so, how do I turn it off?
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Left the truck sitting for a couple of months while working out of town. I bought this truck used with only 1 key. We rebuilt the engine and had noise issues so we don't want to drive it much until this is resolved. I went out to start the truck to move it and it would not start. It had cranked right up the week before. Now it just spins over and the theft light blinks rapidly. I've check all the door locks.
When I called a Ford dealership all the service guy would tell me is that it's going to have a new key made and I have to have the title on the truck to get it done. AND, I have to have the truck towed to a dealership to fix the problem of it not starting... The battery drained down so I took it out and charged it... only thing I can possibly think of is a low battery or maybe somebody tried to steal it while I was out of town and messed up something.
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i have a 99 f150 with a 4.6 that will not start. it has sat for a while now. when i go to turn the key to turn it on it cranks and cranks and cranks but wont start. the theft light blinks like crazy and the odometer reads dashes. There is also a relay which i do believe is the pcm relay that clicks like crazy. when the relay clicks and the key is first turned to the on position the fuel pump will turn on and off as the relay clicks.
We tried putting a scan tool to it to try to pull a code and the scan tool wont connect. I do believe its the pats system kicking, but i also think its related to this relay clicking like a mother, maybe a bad connection in the junction or something. But I am not really sure how to try to start and find the problem. i have also tried replacing the relay that clicks and the new relay does the same thing.
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My alarm and lights started going off one night. By the time I got to it, everything stopped. When I tried to start the next morning, I got nothing. After several tries, horn and lights started again. The only way to stop it was to disconnect battery.
One person told me that it was the key or the ignition not recognizing the key. I was then told that my truck, 97 f150, had no chip in the key so the problem was the computer.
I replaced my computer with a refurbished one. Once I hooked up the battery, the horn was still going, lights flashing and theft light still blinking. Also, not sure if its related, but when I try to use the key in the passenger door it turns, but there is very little resistance and the door does not unlock.
1997 F150
4.6L V8
4x4
6" Fabtech Lift
235,000 Miles
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01 F150. Cranks but no start, will fire with starter fluid spray. Theft light fast flash, Check engine light on. Only have one key and don't know what the kid that had owned has done.
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I recently changed the heater core on my 99 F-150 which meant i had to remove the dash. I got everything back together turned the key to start it and nothing it wouldn't start it wont even turn over. All the electronics come on like normal it just wont start. I have chased every wire every connection into madness. It has an aftermarket remote start someone said that would have bypassed the PATS but i dont know about that the theft light just started blinking.
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I just bought a 00 f150 4x4 with a 5.4 auto...it wouldn't start but not because something was wrong. it kept making a clicking sound and the theft light was one blinking...took my bronco to work and when I came home it started right up...I was thinking one of the keys didn't have the chip in it but it started with both keys....it doesn't have a key fob or keyless entry. I tried locking my drivers door with the key and unlock it...
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2003 F150, 5.4 FX4, overdrive light flashes. Took to a shop they said overheating issue, but I don't understand if it is a overheating issue why does I flash at 4 in the morning when I leave for work fter sitting all night and why does it stop when I do over 70 on the highway.
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I have a 2000 f150, the overdrive light flashes on the swifter, the motor has no power and sputters unless I put it in second gear. It won't shift gears in drive.
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2000 XLT ext cab 4.6 4x4 auto .. Having a couple of problems in below freezing weather when temps are below 30 deg F.
1. I have the usual P/S whine, but when starting up a cold engine, the whine is extremely loud and the motor won't stay running. It starts and immediately dies. I have to give it a little gas to keep it running. It only takes a few seconds until the whine dies down, then it idles fine. Should I just replace the P/S pump or is there something else I need to look at?
2. Again, with a cold engine, when I start driving, the OD light on the column shifter flashes. It flashed for quite a while. The tranny worked fine, though. No problems shifting. I was told that I have to have the dealer read the code and it can only be done when its flashing. Is this true? I'd rather not spend the $$ if its something I can take care of myself. I did change the tranny filter and that worked some. Now the light flashes for about 2-3 minutes then it goes away.
Like I said, these problems are only on days when its below freezing and once the truck is warm, everything works fine.
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Did I steal my own truck?!? Just happened the other day and has only happened the once that I can remember : [URL] .....
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1999 f150 4.2l v6.. The anti theft system has kicked in and my truck won't turn over, the stereo won't turn on, the lights don't work. How can I fix this?
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I have a 1999 F150 with a 5.4L. I recently replaced the PCM with a new unit from autocomputerexchange.net that was programed for my truck. I installed the PCM but the truck did not start. The theft light is also flashing rapidly during cranking. I ran a code scanner a recieved the code P1260 indicating an attempted theft which disabled the truck. I read that if you have two keys you can sync the keys with the new computer but unfortunately one of the keys stopped working a couple years ago (not sure why, stopped for gas and it never started back up). Since i do not have two working keys do i have to tow the truck to a dealer and let them reprogram the keys and reset the PATS or can i have a locksmith recode the keys and sync the keys myself.
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