Ford - Explorer :: 2000 XLT 4.0 SOHC Does Not Start / Misfiring
Mar 13, 2012
I just bought a 2000 ford explorer which didn't start... I put a new fuel filter, spark plugs and air filter in it...still not starting ...gonna do a a compression test tomm. and see if it the timing chains or tensioners... Sounds like its misfiring actually, it doesn't start with starting fluid sprayed in it....where is the ignition pickup located on these things? I still need to put a new ignition coil and wires on it. plugs were in horrendous shape and i thought that was the problem.
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Drove it yesterday no problems. got in this morning tried to start and would not turn over. thought it was a dead battery. Ran jumper cables to my wifes car waited for a while tried again. nothing. bought a new battery put it in. Nothing. I did notice when turning the key the dash lights come on then half a second they go out. interior lights, and 12v outlet work but no headlights. Any issue other than the obvious corroded terminals or loose terminal wires?
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4.0 SOHC cranks once no start, then starts on second crank. 104K miles and used to idle very smooth, now mildly rough and sometimes upon stopping the rpms will dip down to almost stalling but not every time. Also just had the fuel pump replaced.
Also... Seafoam? Is this really as good as it sounds, I mean it can be used on anything, except cereal!
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My neice bought a 2000 Explorer Sport back in November. Soon afterwards it developed a misfire and the CEL came on. I put on a new set of wires and a new set of plugs. I noticed when I replaced the plugs that the #3 plug was missing the ceramic near the electrode. I figured it was just a cheap Bosch plug and didn't give it much thought. The vehicle ran great.
Recently the misfire came back and the CEL came back on. When I pulled the plugs #3 had a cracked ceramic around the electrode, #4 was wet with fuel and not firing at all, and #6 was completely missing the ceramic around the electrode.
I replaced the plugs again, replaced the coil pack and cleaned the MAF sensor and it's running great again.
My question is, what would cause the ceramic to disintegrate on the plugs? There didn't seem to be any pinging or detonation. I replaced the coil pack because I thought maybe it was erratic, loading up on fuel and then causing a big bang and then destroying the plug. Are my thoughts way off? I want to make sure this is fixed so that it doesn't tear up anything else.
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I have a 2000 ford explorer. 4x4 v6. One day i started it up and it was running rough. It had real sluggish power. Then the check engine light came on. I hooked it up to the code machine. The only readout was number 3 misfired. I replaced the plug and all was fine. A few months it happend again. I replaced it again and it was fine. Well it just happened again. I replaced it again. It ran good to work but on the way back no good. Light came on again. Hooked up the machine it read number 4 misfired and number 2 bank lean. So I replaced number 4. It still runs like shit rough idle and no power. Give it gas it dogs out but then it'll kick in if i get on it. Thinking it maybe a vaccum leak or intake leak or o-rings.
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I have tried playing with screw that controls throttle plate it does work at first allowing to reach 1200 rpm at idle however after stopping car and starting again it does go down to ~600rpm again like computer adjusts it back to desired level. There's also **** on Idle valve however turning it does nothing.
Is there way to reprogram computer to make 1200 a desired RPM?
Like try this yourself reach about 1200 rpm and then hold your leg still not looking at the rpm your once you hold it for a while it goes down to normal rpm, only way to hold constant 1200 RPM is to play with gas pedal.
I want to raise RPM to avoid misfire.
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I'm having a little bit of trouble finding the cause of a minor problem on my 06 Explorer with the 4.0 V6 engine. When the engine is running cold at idle, it runs a bit rough and idle speed is high as well. When fully warm, the engine runs and idles fine. I hooked up a scan tool and there are no pending or stored codes. The live data looks ok except the long term fuel trim which is at about +10% on both banks during idle, indicating a lean condition. Short term fuel is right around zero. The MAF and TPS values seem to respond fine when applying steady throttle.
So I assume there must be a fairly small vacuum leak somewhere that the PCM is able to compensate for since the long term is only at 10. I didn't see anything obviously wrong, the vacuum lines look fine along the passenger side near the firewall. I sprayed a bit of throttle cleaner along the hoses, intake manifold and gasket area, but could not spot any vacuum leaks. Any other common areas to check for leaks on the 4.0 V6? Perhaps there is something I am missing?
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Replacing the timing chains and tensioners on an SOHC Explorer, only to have the tensioners fail again after only a few thousand miles? I'm a pretty experienced back yard mechanic and have rebuilt several engines over the years with great results, but this one has me stumped. The only part of the instructions I did not do was to remove the valve springs, but everything was lined up as it should have been using the special tools required to set the timing. I really like the truck, but don't know if it's worth fixing if this is just going to happen again.
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I have a 2003 Eddie Bauer explorer with the 4.0L SOHC . I have a coolant leak from the passenger side that is not a water pump issue.
When removing the timing chain cover with the engine in the car, do I need to remove any accessories ( power steering , alternator etc. ) or their brackets?
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I have acquired a 4.6l DOHC out of a mid year 85 mustang cobra, would like to install in my 2000 F150 that has a 4.6l sohc, what is available for ECM with the swap?
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On my 97 X SOHC, I have a temp gauge that is rather erratic. It reads high even with the engine off and cold and rises when the engine is running to the point the "Check gauges" light illuminates. Then bounces to normal then back near red line. This cycle continues.
To evaluate this, I bought a scan tool and the ECT reads as expected, around ambient to start, gradual climb till the thermostat opens, then hovers there while the radiator does its thing. Heater works as expected. So I'm fairly confident that my X doesn't have a cooling issue.
What my questions are: Can I disconnect the temp sender so I'm not watching the gauge bounce around and then the Check Gauges light is available for other issues that arise?
Does the check gauge light also send a signal back to the PCM?
Can I do any damage to the truck or will the PCM throttle the power back and flash the Check Engine light if a real cooling issue materializes?
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I'm fixing my mother's Ford Explorer 2000 it turns over but won't start it sputters and everyone smile you hear what sounds like a small backfire.
it seems to be getting good spark I can get it to start for a little while and run on either. So I'm assuming the plugs and wires are working well they look good. When I tested the spark it looks very good.
ECM fuses look good able to use a scanner Jump fuel relay and can hear pump run I made sure there is gas in the gas tank
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Changed the spark plugs now I have misfire in cylinders 3 and 6. Do I change the spark plug wires or the coil pack?
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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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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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2007 Explorer Sport Trac was misfiring when first started and then would settle down. Now it is misfiring and when I try to drive it, it does quiet a bit of sputtering and has no power. Took it to mechanic he said it would be hard to tell if it was fuel injectors or what.
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My 1997 Explorer 4.0 is giving me a run for my money. About a month ago, it started misfiring and threw a P0300, 301 and 306. It didn't misfire constantly though only most of the time; sometimes it would run perfect which leads me to believe the issue is electrical. I've had trouble with the coil before so I changed it and no difference. The next time I scanned it, there was only the 306 code. Next I made sure that cylinder six was misfiring and the rest were firing by pulling the wire off the coil.
All checked out but one and six. I've already checked the wires, they're both good. I swapped the plug on cylinders 5 and 6 in the hopes that the problem would follow the plug; nope. Fuses are all good. So I know the coil, wires and plugs are good. That leaves me with air and fuel. I can't imagine anything is wrong with the air intake seeing that it still runs. That leaves me with fuel. It has 200k on it and I've never done injectors. Maybe its injectors but why would they only be faulty part of the time?
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My 2000 Explorer overheated and I had water pump and intake manifold replaced.. then it had a freeze plug rust out and its replaced, I'm holding water.. but now it just wont start.. we've tried everything from changing fuel injectors, fuel delivery unit on intake, now the fuel pump is changed.. still wont start and the theft light is flashing fast.. my dad changed computers while I was out of town,, is it the theft device or does the computer need coded for this explorer?? we have taken negative off battery but nothing.. And if I change the motor will that work or still not run because of theft light or computer??
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My 99 Explorer XLT V6 SOHC has been misfiring lately. In idle the RPM needle fluctuates a bit and the vehicle vibrates and shakes. At night when the lights are on I notice them dim a bit as the engine struggles in idle. It doesn't stall very often at all. Accelerating I notice way less power and the engine studders. That's when the engine light comes on flashing. Then remains on solid afterward. I brought it to a mechanic friend who read the code and it was cylinder two misfire as well as the O2 censor.
I replaced the plugs and leads and censor. Noticed the plug in cylinder two had little to no gaping. Thought I had fixed the problem. The vehicle ran perfectly. Three or four days later driving on the hwy same problem came back. Thinking it must be the coil pack I got one for a good price and replaced it. Again, the truck ran great for four days and now the problem has returned. Same thing, shaking studdering and flashing engine light. I have verified the locations of the wires and plugs a few times so i believe they are all properly installed.
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My 2000 Ford Explorer O/D off light starts flashing after driving it after 3-8 miles from starting out. After shutting it off, it resets itself. It seems to stick between 2nd and 3rd (automatic trans) because I get a surge on my RPMs. I took it to two places, spent $200.00 and the problem remains. The tranny shop actually changed a "range sensor" and thought it was fixed. Nope - O/D off started flashing before I even got back home. I've been looking on the internet and it seems that alot of explorer owners have been having the same types of problems. The shops I have talked to have no idea other than rebuild my transmission. It only has 46,000 miles on it! It seems to me that the overdrive is not kicking in when needed and the light comes on.
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I have a 2000 Explorer W/4.0 SOHC engine. With summer nearly over and fall on the way, I need to figure out what is going on with my engine. This problem has been going on for the past 2 years. As the outdoor temperatures get cooler, the harder it is to start and keep the engine running. This starts happening around 65 ambient temperature, and gets worse as the temps drop. By 30, I can barely keep the engine running.
Odd thing is, all I have to do if the engine starts is, keep my foot on the pedal to keep the engine around 2000RPM, put it in gear and start driving. After about a mile or two, the engine runs normally, and will do so the rest of the day. So far I have cleaned the air flow sensor, replaced the IAC, replaced all the injector "O" rings, and cussed a lot. I smoke tested the engine and the only vacuum leak is a very small one at the EGR valve.
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