engine turns over does not start up?

Hi and thanks for using 2CarPros.

Based on the codes you provided, I feel the problem is related to the camshaft position sensor and not the crankshaft position sensor. The codes indicate a misfire on cylinder 6, a misfire within the first 1000 revolutions of the engine after starting and a camshaft sensor failure, which leads me to the P0340. That indicates a camshaft position failure bank 1. That will cause the misfire (p0306) and the P0316 to set.

With that, and I can't be 100% certain without being there, it seems the camshaft position sensor is causing all of the codes.

With that in mind, I would start with that sensor. Here are the directions for replacing it. The attached picture shows its location.

___________________________

CAMSHAFT POSITION (CMP) SENSOR

REMOVAL
1. Disconnect the battery ground cable.

2. Remove the components in the order indicated in the illustration and table.

INSTALLATION
1. To install, reverse the removal procedure.

____________________________

Now, on your vehicle has two sensors. You need to replace bank 1, which is on the side of the engine which has cylinder 1. If you are facing the engine from the front of the car, it will be the left side. I attached a picture of cylinder locations. The arrow points toward the front of the vehicle.

It will be located below the valve cover as indicated.

Let me know if this helps or if you have other questions.

Take care,
Joe

I cranked the car and it sounds like it is trying to start but it does not. I press the gas to try and help it start and it does nothing at all. I just got my oil changed a day ago and i put a gas treatment in the car. I am not very car savvy at all but I am learning. All my antifreeze leaked out my car so i did use liquid copper to help the leak. Not sure what is wrong with it.

Hello,

Can you shoot a quick video of what the engine is going when you try and start it? If you dont hear the fuel pump and don't have any spark at the plugs I would say it can be the crankshaft angle sensor which when they go out they will not set a code for the problem.

This guide will give you some possibilities to get us started.

https://www.2carpros.com/articles/car-cranks-but-wont-start

Please run some tests and get back to us.

Cheers, Ken

sorry it took me so long to reply I went outside to try and see if it was the fuel pump and I decided to try and start it for fun and it actually started I have no idea why it didn't start before. Now it drives fine but is now leaking antifreeze it won't hold antifreeze for long maybe a day and a half. I can't tell where it's leaking from but when the car was running hot I heard a loud hissing noise.

I could be a computer or sensor problem that might resurface so keep an eye out for the coolant leak start a new question for that here

https://www.2carpros.com/questions/new

Cheers, Ken

when i drive for a period of time and turn the engine off mainly in hotter weather the engine turns over but will not start. I have to wait 20 minutes before I can start the car again, it always starts back up.

When this happens, have you ever checked to see if it is missing spark and fuel to the engine? One or both will be missing and I need to know which one.

Let me know.
Joe

03' ford explorer 4.0 sohc flex no start just cranks. checked fuel pressure 65-70 psi at rail, has spark, has 150- 135 psi compression at all cylinders. tore apart to cams, all chains and guides tight and present no deflection. bought cam alignment tools and set to top dead center, all line up w/ tools. I've tried to pcm, crank sensor, coil pack. It died on road and has never re-started. checked for codes has none. I have a snap-on modis and pid monitored this and everything looks good. I've got it to try to fire at times at wide open throttle it catches and shuts off just as fast. Dose anybody have any ideals, something i'm not thinking of? I was a Ford tech for 8 yrs.

welcome fellow ford tech. since you were a tech you understand we can only help you from the info you give us and we may not be any help at all but we certainly will try..


i noticed you did not mention injector pulse do you have this?
do you have a 5 volt ref from cps?
have you checked the eec relay?

just a few ideas let me know if i can help billymac

also exhaust restrictions

I have Injector pulse, checked w/ noid light, it flashes. No exhaust restrictions

I haven't messed with this vehicle since last fall. I been debateing on taking it to ford dealer. Hate to do that.

yes i know what you mean. it seems to be defying all the laws of mechs has everything it needs but will not run..some times when i have this prob i take 6 spark plugs lay them on the eng and crank and watch to be sure all plugs are fireing. i also do the same thing with the injectors to be sure all six are spraying.you can also get a can of f/i cleaner that connects to fuel rail disable primary fuel system see if it runs on the cleaner to eliminate bad gas.i know i am running down the same trail you have been but 2 minds are better theb one so let me know if any of this helps meanwhile i will research..ty billymac

Thanks billymac, I haven't layed out all plugs to see if they all fire but I did replace them all, I wondered about bad gas so I disconnected the main fuel line and pumped it into a jug then dump it on the ground and lit it up. Appeared to be good gas. When I took the valve covers off I did pull the fuel rails w/ injectors and cranked it to see them spray. all appeared good. This truck is possessed, it seems anytime my cars break or somebody I know its always some off the wall problem.

I took it to ford they had to install a new PCM cost me $560.00 all fixed FYI

Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help.

I changed my spark plugs and wires. I disconnected my battery and reconnected it and now my truck wont start. Do you think it has something to do with resetting the computer?

disconnecting the battery and resetting the PCM ..should not cause the vehicle not to start !! what is the vehicle doing ... turning over and not firing up .. or not cranking at all ?

Hi, I have a 2003 Ford Explorer Eddie Bauer 4.0. Ever since recently the truck has been giving me a problem when starting up on cold days. After sitting over night, or sometimes after a temperature drop the truck will crank but not start. When it doesn't do that, it makes a loud humming noise and clicks, and then on the second try, it will start right up, I've recently taken it to ford and they said that the fuel pump was faulty, we've had the fuel pump, fuel filter, battery, and starter changed but the problem is still persisting. I don't know a lot about cars, but I'm hoping to find a solution to the problem, I appreciate all of the help in advance, thanks.

check fuel pressure with a gauge should be 60-65 psikey on engine off it may be a connection like the oil pressure switch is bad or loose.

The fuel pressure is good, the replaced fuel pump sends good pressure.

try replacing the fuel pump relay see if that does anything. it's in the underhood fuse box

Rebuilt engine earlier this year. Two weeks ago it died without warning. Figured battery. Changed battery. No start. Changed fuel damper due to clogged. Relays are good All fuses are good (visual and light check). Checked fuel injectors with noid light. Ruled out PATS normal light pattern. Ruled out ignition and PCM due to dash lights. Have spark. Changed fuel pump. Changed battery terminal because battery keeps dying. Tried another battery. Also changed fuel filter. No start. No codes because of new battery. engine light on, check gauge light on and battery light on. Can hear the new fuel pump engaging. Changed the crankshaft position sensor, tried starting with IAC valve off. Tried starting in neutral. Tried starting with fuel cap off. Tried starting with pressure on throttle. Running out of what could it be. Going to recheck fuel pressure to make sure there is not a crimp in the line or defective pump. Could it be the starter, the solenoid, alternator, coil pack? Died without warning, no start.

You need three things to start the engine those are spark, fuel and compression if you have all of these then the car should start.

Hi JAZZI,

Here is a link to an informative article from this site with step by step instructions and pictures and a video on what to check for when your vehicle cranks, but will not start.

https://www.2carpros.com/articles/car-cranks-but-wont-start

If you need any further help please come back to the site as we are always happy to help.

Thank you for visiting 2CarPros.

Kindest regards,

Renee
Admin

After a night of -5 degrees the SUV wouldn't start. I had just 2 days before added fuel injector cleaner after I filled up from a dead empty tank(thanks to wife). The second day of it not running I checked the oil, it had fuel in it, a lot. I asked 2 different mechanics they said sounds like fuel injector problem. So I replaced them and the spark plugs, blew out the excess gas from the ports and changed the oil.(Spark from plugs is good) Before that it would only crank. Now it turns over after cranking for a few seconds but just won't start. Someone said maybe PCM is commanding to much from the injectors but I am getting no reading from OBD II scan. I am at a loss. HELP Battery only reads 12.34 and I know it should be 12.6 but the battery has been checked 3 times on machines and it keeps reading good.

HAve you checked the fuel pressure?

IF there is too much pressure the regulator may be bad.

My explorer wont start. It overheated on me and then when I got it cooled off I tried to drive it home. When I started it I put it in drive and pushed on the gas pedal and I had nothing.at times it would make it die. I have changed the fuel pump and the filter what could be the problem. And by the way now it won't start at all

It also won't pull any trouble codes

check fuses under hood first and get a pro to see why you can't pull codes connection may be bad. try resetting security system if no manual look online. I am assuming the battery is good and is turning over

We have checked the fuses they are good. I did run the battery dead trying to start it but I have a battery charger on it . Thanks for responding

one other thing try resetting security system if no manual look online.

Ok thanks I will try anything at this point.

aside from those checks, I suspect that there is major engine damage. there may be coolant in the cylinders from a blown head gasket and as we know, water will not let an engine run

Roy

God I sure hope that's not it but I don't know what else it can be.

I have a 2003 Ford Explorer Sport. Its under a three month warranty and wo days after i bought it and drove it around, i went to the store for something and came back out and it wouldnt start. I had it towed to a repair shop and they called me about 4 hours later and said that they pushed the fuel system restart switch located by the passenger side fllorboard. He told me that he pushed the button and it started right up. He ran a diagnostic and couldnt find anything wrong with it. I went and picked it up and drove it for two days and today the same thing happened. It ran fine all day and today it wouldnt start. I poushed the button over and over and it still wouldnt start then it finally did and i drove it home. When i got home i cut it off and tried to start it again and it wont start. I pushed the button again and it still wont start. So could it be a problem with my switch, or could it be a bigger problem?

It could be a few things. If I provide you directions, are you able to check for spark and fuel to the engine? I need to know if one or both are missing.

Let me know.
Joe

a leak down test will confirm. you could also get a chemical kit at a parts store to see if compression is in the cooling system

Roy

Ok thanks I will try that and see if that's it.

My 2003 Ford Explorer won't start but after an hour it will fire right up and it seems to idle badly. Any ideas?