Ford - Explorer :: 2000 4.0 Sometimes Will Not Start - Fuel Pump Going Out?
Oct 28, 2013
I have a 2000 4.0 Explorer that sometimes will not start. It has happened on cool mornings as well as hot days after I shut it off, for example, shutting it off to fuel up. I always turn the key to the on position and wait a second or two before cranking, and when I do that, I can usually hear the fuel pump. It's when I don't hear the fuel pump that I know it won't start, and sure enough, crank and no start. My question is, is the fuel pump going out? Or another thought I had was maybe the inertia switch starting to fail? It runs great when it starts, just has a problem starting sometimes.
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My friends 2000(I think) explorer With the 4.0 86k has burnt up two pumps in two weeks. This last one only lasted a day. There was over half a tank of fuel in it when installed and only drove it to work and back, about 50 miles. Next morning he went to leave, nothing. Pump won't run. Checked fuses and relays they were okay. Why would this be happening?
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I have a 2000 Ford Explorer with 4.0 SOHC engine, I have had some cold start problems. I cleaned the IAC and the problem went away for a few months and then came back. Two days ago the temps got very cold and it would not start at all, I re-cleaned the IAC and still no start. I replaced the fuel pump with an aftermarket pump and engine started right away. Now I have a rough idle, bad skip and bad exhaust odor. I am still thinking IAC but I am concerned that the aftermarket fuel pump is pumping to high pressure or that I may have crimped the return line. I have driven about 30 miles hoping the computer would make adjustments, still runs rough and the check engine light has not come on.
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My parent's bought a 2002 Explorer 4.0 V6 very early, either late '01 or early '02 when it first came out. Besides the dash blackout (which I found a fix for, need to do) it's been plauged latley (since Nov/Dec 2010) with the intermittent issue of when... You turn the key on to start, you dont hear the fuel pump enguage, thus no start. Get towed, it works like a champ.
It's blown a fuse 1 or 2 times cause of this, had the fuel pump recently replaced (dec/jan this year) and just did it again. Our local Ford dealership figured the fuel pump went bad from sitting, the vehicle only has about 33k miles on it (dad dont drive much). What appears to be a bad fuel pump, only to have it get towed, or sit overnight and start like nothing ever happened?
Dad's ranting about not trusting the vehicle anymore, he's 80yrs old so I can't blame him for wanting to feel comfortable with knowing his vehicle should start, but it is a machine, they do break but we cant seem to get this fixed.
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I have an 04 Ford Explorer XLT 4.0 Flex Fuel. There has been loss of power to fuel pump. Relay and fuse both good, replaced the inertia switch...still nothing. Could a FPDM (fuel pump driver module) have anything to do with this issue? Or what should I check next? I am definitely at a loss as to what the issue could be! I know it is fuel related because I used starting fluid and it started right up and run for just a few seconds, so that should rule out ignition I think.
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Sometimes after running my 94 Limited, it doesn't want to start - it does crank - like it's not getting fuel. I have found the work around and want to know if it would be fixed by replacing the fuel pump relay.
The symptom is just after starting, it starts to run poorly, and then dies out, then will not start at all. I use to keep trying to start it for 20-40 minutes and suddenly it seemed to work.
It seems the work around is to turn the key to on for about 5 seconds and then turn it off - then it starts and runs as good as ever.
So, is this a symptom of a bad relay? I thought I'd start there because of the cost of the relay is fairly cheap. 1994 Explorer Limited 4x4?
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1995 Ford Explorer, 4 ltr. engine, pushrod. Will not start. Replaced fuel pump, fuel filter, every relay, pressure regulator, and the crank position sensor. I realize there's a whole bunch more parts under the hood, but I am ready to give up. Before the fuel pump would not run. Reason for replacing the parts. Now it won't stop running and you can feel the fuel by-passing at the pressure regulator. When checking the pressure at the rail I get zero !! I used a tire pressure tester for this. And, like I said no pressure. This vehicle has around 170,000 miles on it.
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2000 explorer XLT, 4.0L, OHV (VIN "X")---sitting for 15 months, engine turns over but no start unless 10 cc's of gasoline into intake manifold, then runs for 4-5 seconds. Fuel pressure of 5-6 PSI at fuel rail AFTER replaced fuel pump assembly and fuel filter. I can hear fuel pump come on for about a second with key on. Doubel checked fuses and relays for fuel pump and PCM, then again checked that engine would run briefly with gas squirted into intake manifold. Questions:
1) Could fuel lines be clogged after sitting for over a year?
2) Area driver's side next to spare tire, underneath jack storage, where return fuel lines are clustered (nuts are rusted and need to be sawed off)---some type of fuel regulator here? I thought fuel pressure regulator was on fuel pump assembly.
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My daughter's boyfriend just bought a 2000 ranger with a 2.5. We just put a flexplate in it and it wouldn't start. Just turned over. Listened for the fuel pump and no noise. After a few minutes, it worked. He drove it home last night and said that it didn't want to work first try but worked with the second try. He drove it to church, 40 miles, and it sit for around two hours and wouldn't start, no matter how many tries.
We tried changing the relays around with no luck. We went and eat lunch and back to the truck with a rubber hammer. Then it starts on the second try without using the hammer. We got under it and cleaned the connections up and put some bulb grease on them. I couldn't get the one apart right on top of the pump itself, I was afraid of breaking it. It's been doing fine since we left the church before we cleaned the connections.
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My pickup is giving me trouble, replaced fuel pumpand filter, flashed computer, cam sensor seems to be fine...truck will run one day then will not start on another....1500.GMC year 2000.....5.3 litre motor auto trans 4x4... Thinking on replacing computer as a last ditch effort..when we hook the computer analyzer it shows no problems...
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My 2000 Accent GL SOHC 1.5 won't start. It has plenty of battery power to crank over. The fuel pump is not cycling, so I assumed that was the problem and replaced it. Still no fuel pump when the key is turned.
I've read on here how it could be a Crank Position Sensor or a Camshaft Position sensor. I measured the resistance of the Crank Position sensor and got 800 ohms. The specs are [0.486 ~ 0.594kΩ at 20 C (68F)].
I also tried testing ground and voltage to the Camshaft position sensor. With key on, I wasn't getting voltage there (read .028 VDC or so), but the Crank position sensor was also removed. I'm not sure if that has any affect on the test.
So, What is the most likely culprit here? Obviously I'm not familiar with most of the sensors and troubleshooting them.
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My 2000 Hyundai accent gl will not start. I have realized it is the because its not getting fuel. the fuel pump is new but not getting power.. there are 5 wires coming from the pomp which is the ground wire?
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Accent that will crank but won't start. I found out that the fuel pump was not spinning, so I purchased a replacement. Before installing it, I connected all of the wires and the new pump wouldn't spin either. I then hooked the pump directly to the battery and it spins with no problems. After that I realized that the power wire for the pump must be shorting somewhere. So I hooked up the old pump and ran a new power wire from the relay box to the pump. The pump now runs, but the car still won't start. I definitely have fuel to the rail now. I unhooked the fuel line at the fuel rail and it sprays as soon as I turn the key to "On". Now all I need to know is if I'm forgetting something (bleeding the fuel rail?, etc.). Are there any other parts I'm forgetting?
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2000 Mustang was running fine. It hasn't been driven in a couple of days, and now wont start. No noise in the tank, fuel pump not working. But when you spray gas into the throttle body it wont even try to hit. Fuses under the hood beside the battery are all good. Inerta switch is down and in place. Am I missing something? maybe a relay? I would just think no matter what, getting fuel into the opening of the throttle would cause the car to at least cough.
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I have a 03 explorer sport trac that has no fuel pressure the pump will not run. It is a bew pump just replaced it amd drove 4 miles cut it off filled up with gas now it wont run I replaced the pump again thinking I might have got a bad pump but it still wont run. I've checked the relay and inertia switch I have the 5 pin connector on the fuel pump module. 1 wire has good power to it but the pump won't run...
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I have a 2002 ford explore 4.0 sport 4wd. I have a problem with my car, one day I tried starting the car and it didn't want to start. So i replaced the fuel filter and the car started. then after starting it a few times it didn't want to start anymore, so i took of the fuel tank (thinking bad gas, and there was stuff in the gas) so i take out the old gas out and put new gas, and bought a new fuel pump and filter, and when i put the gas tank back on the car, it still didnt want to start, so i take the fuel pump and find a random battery and connected it to the fuel pump and the pump spins so it works. I connected the pump to the car by itself not it the fuel tank (from underneath the car) and i was under the car to see if the pump turns on and someone tuned the car on, and the pump doesn't turn on (doesn't spin or anything). Long Story short, what i should do? Also I was looking for the fuel pump fuse and couldn't find it (thinking it might be the fuse) what is the fuse number or where its located.. i know where the fuel pump relay is, but just not the fuse. Why the pump wouldn't turned on??? The pic is how my fuse box looks like(there are many different version of the fuse box just wanted to show you how mine looks)...
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Just did a complete engine rebuild on 2003 Explorer. All back together....have new battery, starter working, spark at plugs lol crank but no start. Next check is fuel. Fuel pump WAS working fine when timing chain guides went about a year ago...(had to rehab 2 parents and finish bath remodel before pulling engine) So... 1 year later I can't seem to get the fuel pump to work. I checked all fuses and relay. The fuel gauge is working - full tank.
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I'm working on one of our fleet vehicles here, a 1995 Explorer. about 2 months back, it stalled out. Got it back to the shop and turned the key on .... I couldn't hear the fuel pump. I replaced the fuel pump and the fuel pump relay. Vehicle started right up and seemed to run O.K. About 2 weeks ago, it stalled out again, same symptoms, acts like it runs out of gas and can't hear fuel pump.So, I have been playing with it and find that it starts up great in the cool mornings. In the afternoon when the temps are hotter, it won't start (can't hear fuel pump). The following morning when temps are cool, it will start right up and can hear the fuel pump. I almost wrote this one off as a defective fuel pump, but I'm not sure on this one.
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I have an 03 Explorer that had a starting issue. Long story short, it had no fuel pressure. So after testing the relay, I switched out the pump with an Airtex unit . All seemed fine...for a while.
Became hard to start again, checked Schrader valve with the key on, and not running, no pressure. Strange though, it would run.
So got the fuel pressure gauge on it. Turn the key and pressure will go to about 5-10psi and then drop to zero. Turn key off and on again, up to 5-10psi, then drop to zero. Turn the key to start and pressure goes up to 10psi, then starts, then goes to 30 while running and you can drive it around. Shut off motor and pressure goes down to zero.how the sending unit is supposed to hold fuel pressure and not release it? Is there some kind of check valve in the sending unit assembly that can be cleaned or does it need a whole sending unit with another pump? I already spent the $100 for the pump, and it is working if you can drive it!
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The other day, my father-in-law was driving my '91 Explorer and it just died on him. I assumed that the fuel pump quit becuase it wouldn't come on when the switch was turned on. I had a brand new lying around so I dropped the tank and put it in but it still won't work. I checked the inertia switch and it wasn't tripped. There is no power coming to the new pump at all. When the switch is turned on, there is a noticeable "click" inside the engine bay. Would that be the fuel pump relay making that "click"?
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93 explorer 215000 miles on it runs like a champ 99.9% of the time. I am on my way home today on the highway going 75mph when all of sudden it started slowing down and sputtering. I quickly pulled over and as I did the car shut off. When I was pumping the pedal nothing would happen. I initially thought fuel pump is dead as I dont know if its been replaced. 45 minutes later on the side of the highway after multiple times trying to start, it does and I cruise the next 20 miles home no problems at all????
Got home started it a few times, NO PROBLEMS!
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