New Engine No Spark

[99fourdoor]

I just finished the install on a parts store engine and now I do not have any spark. I tested the coil and replaced with new one just in case also the cam sensor is new since I broke the old one after I took it off the old engine. I know the crank sensor is less than $20 but don't just want to start throwing parts at it. could the new cam sensor cause this? Should I try the crank sensor or test something else? Thanks for any help!

 

[budwich]

the cam sensor control "fueling" (duration of injectors) while the crank sensor controls "spark"... take your best shot...

 

[2000StreetRod]

Which engine?

V8, SOHC V6 or OHV V6?

 

[99fourdoor]

sorry it might help if I gave all the info. It's a 4.0L SOHC V6 2 wheel drive. The old engine ran but the all of the timing guides were in the oil pan.

 

[99fourdoor]

Well.....

I put a new crank sensor on and still no spark. My dad swears to me that the PATS is the problem. I don't know enough about how it works but i don't think that is the problem. He says since the truck has been on the side lines for over a year the keys have lost their programing. But the theft light does not flash while tryin to start it.

 

[budwich]

It appears that you need to backup.....go thru the various checks for no start... ie check engine light on at start, fuel pump, fuel pressure, spark, etc.... lots of posts.

http://www.explorerforum.com/forums/showthread.php?t=264205

 

[99fourdoor]

it was the wire that goes fron the crank sensor to the ecm. it was broken where it turns down under the thermostat houseing

 

[Turdle]

Yes, that thing is hidden and easy to bugger up. Thanks for the update.