Ford F-150 - 1997-2003 :: 2001 - No Power / Cylinder 7 Dead
Nov 7, 2013
2001 F150 ext cab lariat 4x4. My father passed away last christmas and my mother would like to have his truck running. A little back ground truck has a 4.6 has always lacked power. Ford did a motor job on it at ten thousand miles saying it was assembled wrong at factory. #seven cylinder has been dead for years. This spring the cat plugged up on drivers side. The local mechanic put two new aftermarket cats on it. Worked ok for a day. Then started acting up. Truck seems to only be running on three or four cylinders. It will start right up but won't rev up if you put it in gear it stalls. My uncle was s Ford mechanic for years and means well but is too busy to fix it. She has been waiting since may for him to look at it. He claims the problem is likely the wiring harness for the O2 sensors that runs behind the engine. Does this seem reasonable?
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I have an 01 5.4 Triton with engine light on I put it on the scanner and it read miss fire on cylinder 6 and 1 I changed the cops and plugs boots and spring erased the codes but the check light is back on and scanner is say miss fire on same two cylinders u can hear it in the exhaust u can smell gas when sitting at an idle around 40 MPH has a slight engine shake goes away when u accelerate I am not sure what else to do some one told me to check for vac leaks and fuel pressure.
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2001 f 150 5.4 liter with it being code pops up saying cylinder one misfire, I've charge coil and spark plug ran great for awhile now starting to act up again. Got coil check and says still good and look at spark plug and looks still in good shape being just replace two weeks ago. It's running fine but if it sits over night and I get in and start it and begins to shake when I but it in drive and don't even need to move the truck just place it in drive with foot on break. I drive it awhile and it stops and runs fine?
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My son has a 2001 F150 with a 4.6L V8 that's blown a sparkplug from # 3 cylinder. The plug looks as if struck by lightning and has a burn groove as deep as a kitchen match stem the full length of the threads.
How difficult is an engine swap/change using another 4.6L? Neither of us have extensive mechanical backgrounds but plenty of aptitude.
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I think I have a battery issue but wanted to ask the group in case someone ran into this before.
Went to start my truck this morning and did the normal dead battery sound but doesn't have enough power to turn the engine. I can see the engine start to turn but can't get over compression.
So I bought a new Interstate battery from Costco, installed it, and same problem. Hooked up a charger and it showed 25%. Let it charge for 4 hours, now it's at 50% and still won't turn over.
I'm going to wait over night and let it charge, but I wanted to ask the group if there is any known problems (Beyond battery) that would do this.
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Replaced the spark plugs and wires a couple months ago. Started skipping yesterday throwing the #4 misfire code so I replaced the coil pack, reset the check engine light but it's since came back on and has a rough idle and loss of power. By the way, it's a 97 F150 4.6L 4x4 with 200,000 miles.
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3.0 ENGINE - For a year now I could not figure out what was wrong with my van. It has a loss of power low end but seems to run OK at higher speeds. I changed the plugs, wires, cap etc, fuel filter and no difference. I finally broke down and took it to Firestoneto diagnose it. The guy told me #5 plug was foul and had oil on in, said it is possibly the rings. They did not charge me but they also did not do a thorough check either. They did not check the compression in the cylinder or other spark plugs.
Spoke to a guy at the auto part store and asked what I could do. He said change the oil and add a can of restore. Also said to put a anti foul adapter in first and then the new plug, the adapter would keep the oil from fouling the new plug.
I got the oil change and added the restor. Drove it for a while and took the plug out myself, its the 2nd one in on the drivers side. The plug was nasty looking. Put the new plug in and started it up. I can see that there is spark going to the new plug but putting the wire on and off made no difference in how the engine ran, like the cylinder was dead. I took the plug out of the adapter and put it back in, still nothing, I took the plug back out and there was no oil or smell of gas. Fuel injector not working? You would think there would be some combustion with the new plug.
A year ago the problem started where the van would run great one day then crappy the next. Sometimes it would run a few days great(like new) then a few days crappy. After a month or so it just ran crappy and basically has ran the same for a year now. I notice the A/C puts a load on the engine and the A/C clutch will click on and off every few second when the van is in gear but not when the van is in park or neutral. A/C is not low and works fine when driving, very cold. I normally turn the A/C off during take off because it takes off much slower with the A/C running.
The van shows some white smoke when I rev it up real good when I first start it but it does not show any smoke when idle and while driving.
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My feed truck (2001 ext cab 4x4 7.3 198k) had a cold starting issue I fixed with new gp relay. Now I noticed when it gets down below 30 degrees it has a cylinder miss until motor warms up. I don't doubt injectors are in my future. I was wondering though if that is common for worn injectors or if maybe something else has gone haywire and how long can I run it like that before something else tears up? after about 7-10 min the miss goes away and I don't notice it. I would like to get through the winter before messing with it or having injectors put in it...
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So I did a cylinder contribution test and a buzz test today. It buzzed evenly on all cylinders. Then when I did the cylinder contribution test I got these codes,
P0269 cylinder 4 contribution balance
P0284 cylinder 8 contribution balance
It has been running a little rough lately but not smoking. Seems to be chattering more than it was too. I did the FRx, HPx, CVDs and banjo bolt mods about 500 miles ago and it was a lot quieter and ran better. Just recently started running rough and a little louder. Could these injectors be bad? I did new injector O-rings about 800 miles ago. I ran the test with the engine cold and with it warmed up and got the codes both times. It seems to have a little bit of throttle flutter when holding it about half throttle while driving.
As far as I know the injectors haven't been replaced and they have 186K miles on them.
2001 F-350 Lariat Dually Supercab 6-spd manual 7.3 Powerstroke Turbo Diesel 186,000 miles....
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On occasion my battery (new) goes dead. Sounds like a battery leak? How do I test for this? I have a Cnc odb2 tester, test light, multi meter and alternator tester.
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My dad has a 97 f150 ext cab and the gauges are dead.... What would cause this? I've checked the faq but didn't see anything.
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Ok so I have a 2001 f150 4.6l 4x4 I purchase it recently and have been having some issues it has a huge power loss on take off and even while driving I have changed plugs coils tested almost every sensor and am at a loss at this point. No check engine light on or codes...
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1997 F-150 XLT Extended cab. 4.6L VIN 6, 5 speed manual, 4x4. Replaced speed sensor on transfer case, speedometer is not completely dead but bounces around. Seems to be about 10 mph below actual speed. When I come to a stop say at a red light speedometer drops to zero at about 20 mph or so. Cruise also inop. It seems like whenever I let off the gas to stop or shift gears the speedometer drops down but then goes back up but not to the right speed. It has the mechanical odometer by the way. Everything else seems to be working fine. New speed sensor did not come with the plastic gear so I had to reuse the old one. Not sure if that gear was bad or not, but it was the pink one if that matters.
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My 2001 F150 was dead, my son came in and told me Dad when I open the door I hear a clicking. Upon investigation a relay in fuse panel was clicking and I had to jump start the truck. NOTE- The truck has a brand new battery purchased 3 days prior to this issue.
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2001 F150! It does this weird little surge, burping and farting away...but only in ambient heat. The engine never gets hot, it never over heats. What have we done? A full tuneup with new plugs and boots, oil change, new air filter, gas filter. It did it again...took it back in and had the fuel pressure checked, fuel injectors are fine...it can't be the fuel pump, it runs great unless it is hot weather. It has twice blown the P0171 system lean bank 1 code and has gone away after the tuneup and again after the new o2 sensor. It runs great, except in hot weather, starts surging and losing power...
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Just curious what type of power steering fluid should be used in our trucks. What works best?
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How can I determine if my compressor is bad or is the solinoid/clutch bad. Truck had sat for about 9 months-1yr. A/C hadn't been operated for an additional 5-6 months. It worked like a freezer before I parked the truck. When i started the truck back up and tried the a/c the clutch would try to spin but very intermittently, now not at all. What direction should I go?
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I reprogrammed my computer, to get rid of a bad tune with the Ford Program. After reprogramming, and entering in my tire size/gear size my speedometer and odometer no longer work. Also my overdrive light is flashing. Does this truck have a PSOM and could that be bad? What else could cause the problem, it definitely happened when it was flashed. Whats the cheapest way to fix it?
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Trucks throwing codes for cylinder 3 and 8 misfire. I pulled the plugs and both were covered in oil and cylinder 8s electrode was literally gone. so I replaced the plugs and within 5 miles it was missing again. so I replaced all plugs, all wires and coil packs. cylinder 8 plug had fouled out. Its a 4.6l 99. I have a mild exhaust leak where the manifold connects to the downpipe. but not bad enough I feel it should matter. it runs rough until about 3k rpm and then it kinda straightens out.
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I have changed the COP and the injector as well as the spark plug. I am still having a misfire on #7 cylinder....
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Which cylinder is #3 on 2003 150 4.6. ...
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