Ford F-150 - 1997-2003 :: 1986 - Only Jump Start - Alternator?
Dec 31, 2013
A co worker gave me an 1986 F-150 5.0 302 with 225,000 miles that he had sitting for 1 year in driveway. He never put the new alternator in that he bought. I towed it to my house and put the alt. in jumped the battery and it started but idle was horrible. turned the idle screw to get bad gas burned off.
Whenever I shut it off or it died from idle I would have to jump it. So, I put new 56-3 battery new relay and it started right up. Drove it down the road to test drive, the truck would want to fowl out whenever I stepped on gas peddle hard. I put Sea Foam and Lucas in the tank and 20.00 premium on top. but now the truck will not turn over since it was shut off unless i jump it but needs jumping all the time. thought it was the starter so, replaced that and still tick, tick, tick, tick when trying to start won't turn over. Its going to start to make me drink, what I can replace now or have checked? maybe its the Alternator he gave me with the truck?
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My X keeps needing to be jumped and after being jumped it runs like a top as usual. Took it to Autozone and had them hookup their little portable doohikie and told me the battery is fine but the alternator should be pushing out 14a and it's only pushing 13? Didn't realize 1aI made that big of difference but whatever. I am taking the alternator off in a few minutes and I'm gonna have it bench tested to confirm the output.
Is there a heavier duty alt that I can get? I will be pulling an RV before too long so I'd like to get one that's gonna last. Btw, 2000 excursion limited v10 gas 6.8...
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My dads f150 shuts off intermittently while driving it. He has to pull over and wait about 5 minutes until it restarts again. We have tried replacing the fuel filter, still shuts off! Some one pointed out the coil!? I am thinking that it might be the switch. It might be bad, shorting out and shutting down the truck?
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I have a 2000 F150 with the 4.6L engine and I have a question about the transmission. When shifting from 1st to 2nd gear there is sometimes a little hard jump when shifting. All the other shifting through out the range is buttery smooth. The issue has been around for a long time and has never gotten worse. Is there anything simple I can do to fix this. Do those tranny additives work at all? Otherwise, I will just continue to live with it.
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I have a 97' F-150 4.6 L and I've been having some fuel gauge issues.... I filled up my tank up and I drove it 130 miles and it still said full tank... even when I had 1/2 I would start it and every time I started it it would jump up all the way to full and slowly drop down. Then randomly last night it started working... I noticed as I hit rough patches in the road and bumps it would usually fluctuate, but it would also fluctuate up... It read I have 3/4 tank last night and I go to start it today and its back up to full! I don't understand... Wouldn't a bad sending unit just stop all together?
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I have a 86 Suzuki samurai that I have just swapped a vw 1.9 turbo diesel into with a gm 3 wire 10si 110amp alternator.
Wire number 2 is looped back onto the 12v post and has 12v at all times
Wire number 1 is hooked into my dash light.
Key on engine off it reads 0v with the dash light on, key on engine on it reads just below battery voltage and dash light is off. The 12v post is hooked into my stock wiring connected to my brand new battery. Today I had my battery and my alternator bench tested and they both came back functioning normally.
My issue is I'm never reading above battery voltage with the engine on (either from the post on the alternator or my battery). I grabbed a used alternator locally and I was having the same issue. However with that one if I pulled the positive lead from the battery with the engine running it would read 14.3v until I would hook it back to the battery where it would drop back to battery voltage. I was able to repeat that behaviour mutlitple times until I ended up killing the alternator. My other alternator is new and I don't wish to damage it pulling the positive lead but I'm betting it's functioning the same way.
What in my system could be causing this? The truck is pretty old and doesn't have a ecm or much of any electrical and I just can't figure out what's going on. Its like some kind of feedback is shutting down the alternator when it gets hooked up to the battery.
So far I've tried temporarily adding grounds with jumper cables :
Measured 0.2ohm resistance between my ground cable and the alternator housing
Measured 0.0ohm resistance between my positive lead and the 12v post on alternator
I've also tried pulling all the relays and accessories I've added to the positive lead with no change. Camping weather is quickly approaching and I need my truck back on the road!
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I have a 2003 E450 Ford truck based C-Class motorhome with a 6.8 liter V-10. My truck would not start, and could not be jumped by two AAA tow vehicles. The truck was towed 15 miles to a store that sold batteries, and fired up without problems after a new battery was installed. My local Ford dealer says they have no problems jump starting Ford trucks. Other than the V-10, why would one be unable to jump start this truck?
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I have a 97 Ford Explorer. I bought it in 07 and it was nice until like 2 years ago when it started to give me doubts. It never died on me,yet, but everyday when I first start it for the day, if I put it in gear right away, it will stay idle for a while and then kick into gear and just jump. I would drive but it keeps kicking off and on until it is warmed up, I guess because it goes away. Also the OD light would come on also.
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My alternator went out last week. I installed a new alternator, battery and serpentine belt. However, the battery is still dying. So far I checked the continuity on the fusible link and it appears to be good. I also checked fuse number 11 which provides power to the voltage regulator. The fuse is not blown. The voltage at the battery while it is running is less than 12 volts and it drops the longer it runs. I also have codes b1318, b1932, c 1226, and c1284.
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Got a 97 ford explorer sport that wont start. It will go like its going to start but I've only got it to run with ether then dies got new battery n tps thinking its the alternator because i hear a ticking in that area and the battery is now dead after i charged it all the way up granted. I did try consistently to get and keep running?
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86 Diesel Suburban
Lately the voltage gauge sometimes starts to wander upwards toward the 18v red zone. When it does it wanders up and down a lot, but mostly well above the center 13v. Sometimes I left of the throttle a little and it goes back and stays at normal, and sometimes it doesn't and bounces up again as soon as I press the throttle. Doesn't happen on every drive, just sometimes.
I thought it unlikely this was a bad voltage regulator, since it's a pretty new alternator, 2 years tops. So I thought I'd see what other possible causes could be. (Why do they make the voltage regulator internal to the alternator now anyways, since they seem to go bad more often than the core? Can I just add an external regulator like the older trucks had?)
I've heard over-voltage can ironically sometimes be caused by a short, since the regulator dumps more voltage into the field coils because the main coils are showing they aren't delivering enough current (because it's all being soaked up by the short), resulting in an overall over voltage as the alternator tries to compensate for the voltage drop of the short.
How do I tell if this is the cause of the overvoltage or if it's something else instead? If it is a short, where could it be? I'm assuming it must be somewhere weird, because almost any normal place I could think of for a short would simply blow a fuse. Or is there such a thing as a partial short-- high enough resistance to not blow a fuse, but low enough to drive the alternator nuts?
Could it be related to overheating? I initially thought that was a possibility, because it began around the time the weather turned warm here, but on any given day it seems pretty random and not tied strongly to excessive speed or going up hills.
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I have a 1998 f150. Was driving down the road the other night and the truck loses all power. I have replaced the alternator and the battery loght stayed on. So, I took both old and new altrrnator to parts store and had them both tested and they bith passed. Is this a commomn issue?
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The other day the battery light came on. Of course the useless "gauge" still reads normal but that is another rant.
Checked voltages today:
Battery reads 12.0 volts key off, 11.83 key on, engine off, 11.65 engine running.
Obviously discharging and I am guessing it is the alternator. Do these trucks have an external regulator that may have failed or is it in the alternator? I'd hate to spend $150-200 for an alternator only to find out it doesn't solve the problem.
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I drive a '99 F150 4x4 5.4 EFI 196,000 miles. Recently I started noticing a growling noise that followed engine speed. I immediately thought alternator going out. So I pulled the belt off and it spins free and doesn't feel rough at all.
So I started it up and realized the noise got a lot louder when the ac clutch cycled. Now I'm thinking ac compressor. A short trip to my mechanic who didn't even really look at it very long and he said the compressor is about ready to seize up. I thought I might just put on an ac bypass pulley to get by for a while. Not really a sound decision in the middle of July, I'm thinking, but I'm poor and it beats having the compressor lock up, right?
Today, when I get off work and pop the hood with the ac off and the clutch not engaged the noise is worse than ever. I put a stethoscope (long screwdriver, I told you I was poor) on the alternator and it is making all of the noise. Turned the ac on again and it was really making noise now. So I applied the stetho-driver to the ac compressor and it is quiet as can be.
I am cautiously optimistic that the alternator is the sole culprit and that it only gets louder when the ac cycles because of the extra drag on the belt.
Does that seem like a logical explanation? Should I just try the alternator? I really don't want to destroy a perfectly functioning ac system only to find out that it was OK to begin with and I don't want to buy a $150 alternator for no reason either.
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Alternator warning lite comes on at idle rpm. Speed up rpm lite goes out. The gauge shows alternator is charging. Autozone checked it for me it is putting out 11 to 11.5amps running. Should be putting out around 13 amps, right? alternator bad?
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I have a '97 Chrysler Cirrus that won't start on it's own without being jump started. Once jump started it runs fine, but then the next time you go to start it the battery is drained again. My highly uneducated guess is that I need to replace the alternator. Am I on the right track? I replaced the battery and the problem persisted.
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I have a 99 F150 4x4 with 5.4 Triton, 99xxx miles. I was towing my boat when the regulator in my alternator went bad. I drove the truck with the voltage being sporadic for about 10 miles until I could get to a parts store. While driving on the bad alternator, I started noticing a misfire. I replaced the alternator, battery and DPFE. I still have the misfire....but here is the kicker. The misfire only happens when the truck reaches operating temperature. Which, in my limited knowledge, eliminates a fouled plug, COP, bad injector and a vacuum leak. I've got no check engine light so I can't pull a code. The only thing I can think of is to clean the EGR?
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I have a 2000 V6 F150 and replaced my alternator in about five minutes and now have been trying to re-install the serpentine belt for about 6 hours. How do you grab the tensioner pulley?
Also I selected the 130 amp new manufactured alternator at Advanced. Auto thinking the 130 amp might be somewhat of an upgrade to my original Motorcraft Alt and after several hours I also discovered them. pulley on the new alternator is about a quarter inch larger in diameter than the original alternator. I wonder if I should compensate for a half inch longer belt or try to get the same one on.
In any case I cannot find a way to grab and move the belt tensioner to allow me to reinstall the belt around the alternator. Are there any pictures anywhere on how to move the tensioner to create slack when reinstalling the belt?
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I bought a 99 f350, that already had HID's in it, i found out i was running the wrong batters (weren't 800 cold crank) I just had to replace the alternator. Ever since the new alternator when i turn on my headlights my truck shuts off. IT fried my IDM and i just put a new IDM and 2 new batteries in it today. Thinking i had fixed the problem i drove around no issues, finally i was leaving someones house and turned on my lights, and truck shuts off!!! It restarts but now im trowing a code!!!! im guessing the HIDs are wired wrong and that's why its shutting down the truck but OEM IDM from ford is 1300$!!!!! brand new one installed today,
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I have a 2001 f350 7.3 diesel, I am looking at switching out the air intake? Also, I have an issue with the code for a dual upper and lower generator fault.. I checked and only have one generator not a dual system.. The alternator is running strong at 14.1.. But I have noticed when I start it up it is down to 12..
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I put a re manufactured alternator in my 2000 f150 with the 5.4 liter. Now all the lights flicker, go dim and then come back on bright again. I noticed when the lights dim, the heater fan speed also drops. The light flickering is constant and bad enough, that I can notice it in daylight also with the headlights on. It is really noticeable at night with the truck in drive (or any gear for that matter) sitting at a stop sign or sitting still in my driveway. I changed out the old alternator because it was making a loud chattering noise. I didn't have any trouble with the lights or fan with the old alternator. Why doesn't the battery volt gauge in my instrument cluster fluctuate all the time while it is doing this? It reads in the normal range all the time and doesn't move. The flickering lights are also noticeable at highway speeds, its just not as bad.
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