PLEASE HELP WONT START

[chrispgh95]

Hi all,

Got a 95 xlt 4.0 OHV.. Problem it wont start... it is a little damp here tonight.. But recently i replaced iacv from ford... I hear the fuel pump come on so i know its not that or the relay... Replaced the plugs and wires 2-3 weeks ago,, got 135k.. Im thinking crank postion sensor.... It will crank so its not the starter... Does anyone have any other reccomendations???

Thanks a bunch...chris

 

[BradE.]

Are you sure it's not the battery?

 

[joehawk]

I would determine if I am getting spark. I use a timing light with inductive pickup, and see if it flashes. Or a test spark plug that has the right resistance and designed for testing, and is clamped to the block to ground it. I wouldn't pull a wire and crank it to see spark as it could blow out coil pack etc. If there is spark, I would make sure there is fuel actually getting all the way to the intake.

 

[matey]

did you spray some aerostart in to it?

 

[chrispgh95]

wont start

thanks so far guys... 1. Its not the battery i know that, didnt try any aerostart what ever that is??, and do you have any other method of trying to find spark a dont have a timing light or anything...any help is greaqtly appreciated..

 

[matey]

areostart is ether in a spray can .for sure yous have some thing like that. to find out if you have a spark the easiest is to take out a plug hold it against the chassis and get some one to turn it over

 

[chrispgh95]

More info.. well i openup up the hood.. first off one of the spark plug wires had came off the plug and one fuse labeled power point had burnt out.. does this info help any?????

 

[joehawk]

If a wired popped off, there is a chance that it blew out a coil pack. There are lot of volts in these coil packs and if it can't get to ground the normal way thru the wire and plug to ground, it can short thru the coil pack to the block to complete the ground on that cylinder's power stroke. I really would buy the test sparkplug, they run around $10, and you can use it in the future too. You disconnect the wire and put the sparkplug wire on it, then clamp the squeeze clamp to the block to complete the circuit. You will see the spark in the test plug tip. You won't burn out a coil pack this way, if you just try and spark it directly to the block without a plug it can. You would know if you are getting spark from each of the coil packs. I would test one wire from each of the coil packs[probably there are two of the coil packs, but I don't know your year of Ex].