This is how i flushed the heater core. But I think water spilled out from the lower hose onto the ignition coil and fried something.

 

*but I will check them.

Sry post the spazzy reply posts

 

The ASD Relay should be okay unless you hosed down the inside of the PDC. But, if you think there may be a problem with it, you can swap it with the radiator fan relay to check it out.

If the coil is cracked, yard it out of there.

 

I swapped the relay fuses but those 2 mini ones still had no connection with my tester - does the engine have to be running for the ASD to have power?

Ignition coil is cracked and if I did get it wet (most likely) it's fubar.
Think it could it have damage my PCM in any way?

 

Yes, the engine should be running/cranking to activate the ASD relay.

It is unknown if the PCM ignition coil driver was damaged. There are two pins in the connector, one is 12 volts from the ASD relay and the other is the coil driver from the PCM. The coil driver provides a ground to the primary winding of the coil and when it is time to fire a plug the ground is removed and the magnetic field colapses over the secondary winding, which induces a high voltage to the distributor. If these two pins are shorted together by coolant it may have put 12 volts back in the PCM coil driver circuit while cranking the engine. Unknown results.

If you open this link and scroll down to post #59 you’ll see a coil test procedure. It also shows a schematic of the ignition coil circuit.

https://www.cherokeeforum.com/f2/great-info-threads-here-6558/index4/

 

Here's the link that will work.

https://www.cherokeeforum.com/f2/gre...e-6558/index4/

 

Thanks man! The first link worked..

I really hope I only burnt out the ignition coil. I really think it's spark related, not fuel or CPS because other than a low oil pressure issue (that I've also been currently working on) my xj ran and started well before I did this stinkin flush.

 

Well with the new coil in and pumping the gas peddle (it really wanted to start) she turned over... ran rough with white smoke out of the exhaust... which is totally new.

What's that mean?

 

On quick research, it means I'm screwed. Fml

 

My oil looks fine... coolant issue? It ran for 30 sec and the smoke didn't stop so I turned it off

 

Ok she fired right up on a second run after I checked the oil. Still white smoke, not as bad. Oil still looks clean.

Side note: my oil pressure has been low and I've been trying to diagnose it for 3 weeks. Wix filter on it now, switched from 10w-30 to 10w-40 just to see if there was a difference, pressure sensor fine and cleaned with pipe cleaner - waiting on a mech gauge from a friend to get a good reading on pressure. *the oil pressure after the flush has been better/higher*

Head gasket?

 

Check coolant level. Check for milky oil. Run it some more to see if it clears up.

Edit: Another jump the gun. LOL

 

How low is the oil pressure?

Run it some more. Run the RPM up to around 2,000 and leave it there for a minute to see if it clears the intake and cylinders out.

I take it you don't have a CEL on. Does the bulb work?

 

Oil pressure hasn't gotten above 30 in a while. after the flush it was at 45, now at 45 as well, and both were cold starts.

What is a CEL? What bulb are you referring to?

 

Coolant levels are good btw. My xj has actually been up the road at a gas station because I didn't have enough coolant the other night - whilst topping off the coolant and burping it, I cranked the heat up and that's when it stuttered and pooped out. It's been .3 miles away since.. going to scoop her up now and see what happens.