compression test and new plugs...... now it wont run or even start

[93xplorersport]

yea i still have no spark and there is no rpm when the tester was put on the computer

 

[DR_APLET]

ok my crank sensor is good the voltage to it is 1.5 volts and drops to 1.45 volts my book says if it fluctuates more than .1 volts then its good. im gettin voltage to my coil pack so my ignition control module is good as well, so replace my coil would be the thing to do. but heres the kicker i have tried 4 coils and 3 of them came off running trucks, whats the odds that 4 coil packs could go bad in a matter of hours? someone help please

1.5 volts to 1.45 volts is only a difference of .05 v not greater than .1 v

i might be also suspect of MAF (mass air flow) sensor, since you said that it would idle correct but no throtle?
also one of the other things you may have inadvertently bumped like getting that rear #5 plug.

 

[93xplorersport]

ok i have put a brand new icm on the truck and still no spark so in return no running. i have tried staring it with the gas peddle floored and it didnt change anything everything that i have been told is leading to the pcm i hope someone can point somethin else out and i also tried iron weasles test and still nothing ive exhausted every test that i know of and all of the help i have thanks for all the help

 

[jungleryan00]

If you have no rpm signal while trying to start the engine you have a crank sensor issue.

 

[marragtop]

If the fuel pump is priming, then I suggest you replace the PCM relay. Easy and quick fix to make sure you are getting power thru the power dist box.

 

[93xplorersport]

just wanted to let everyone know that the problem was the top plug that is mounted to the altenator bracket. the plug was loose but got that fixed and the my iac went out but got the xplorer running and she is running like this never happened thanks again for the help and advice