Ford F-150 - 1997-2003 :: Swapped 2001 5.4 To Replace 4.6 - No Start
Mar 4, 2014
We have a 1997 f150 with the 4.6 in it originally. The 4.6 was pulled and a 2001 5.4 engine was swapped. I was called to see why it could not run. I did some preliminary tests and suspected the PATS system.
I cannot get the fuel pump to run by jumping the relay and I am assuming all the wiring is proper from the swap.
The 2001 5.4 engine ecu has been transferred over. I run the obd tests and get a bunch of codes but none point to the pats system. The theft light does not prove out or does not flash. I can get it to turn on via my obd scan tool. I have an elm tool.
I do know the 1997 cluster was not changed. The ignition from the 2001 was swapped and have only 1 matching key with it.
When I jumped the fuel pump relay, I produced the code p0232 which tells me the computer saw current in the pump circuit when the PCM has it disabled. Should a swap of this kind also include the pats components ? I also cannot get the fuel pump to run by jumping the relay.
I have the codes :
P01703
P0232
P01747
P0750
P0755
p1451
P1409
P1633
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I have a 2001 F150 Supercrew Lariat. About a month ago I stopped to fill up with gas and afterwards it would crank but not start. After a few tries the engine would no longer turn over. My battery was 7 years old so I replaced it and the problem went away for about 5 days. Then the same thing, crank but no start. I checked all the fuses & called the local Ford dealer.
After talking with the parts dept. I tried hitting the panic button then the truck started. After talking to parts again I replaced the PATS transceiver. After 3 weeks with no issues the problem came back. This time I locked the doors with the keyless entry remote then unlocked them & the truck started. So I'm wondering what is my problem. Could it be the PATS module or something with the keyless entry module or some other issue.
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About a month ago, my 2001 f150 supercrew (4x4 5.4L) didn't want to start one morning. This was after a very cold night (15 degree temps). It sounded like it had plenty of juice in the battery (cranked good), just wouldn't start. Later in the day, after it warmed up, still no start. I dug thru here, and someone recommended disconnecting the positive battery cable for a minute then retrying. I did it, and it worked. All was good.
About a week ago, no start in the morning again. Tried the positive cable disconnect, no luck. After several hours, it just seemed to randomly start, and all was well again.
Today, truck started right up in the morning, but later in the afternoon (warm winter day 45 degrees) no start. Tried the positive cable disconnect, no luck. After screwing with the truck for about an hour, I decided to put the fuel pressure gauge on the rail. NO fuel pressure.
Is fuel pressure associated with the PATS, or is this a straight up fuel system problem?
Additional info: My gas tank fell out this summer, (recall on those tank straps), and I had a new tank, pump, straps and lines installed. I had a no crank, no start issue this summer, but that turned out to be the transmission not registering in park. I assume the two issues are unrelated.
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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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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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Radiator
Thermostat
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Water Pump
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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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