Gonna have to give the battery a good charge before i can further diagnose this issue.

Hopefully the pcm is okay, and hopefully my sensors arent destroyed.

Be out there this evening, will provide an update then.

 

ahhh,,, bummer. unhook the battery and hold the cable ends together, not repeat not while cables are hooked to battery... hold together for a minute. that will do a complete reset of all the separate electronics in the system. dang hope the ecm/pcm is ok.

 

As in hold the positive abd negative terminals together after discod from the battery?

I took the battery to work and fully charged it. Still no spark at plugs. Full 12 volts going to icm. Had the module tested last week. Checked out fine.

My volt meter warped to an unusable state today in my vehicle. So im not sure what tests i can do. Pulled plugs 1 2 and 6. No spark.

Resistance of the coils was 5 ish when i tested them.

 

Well the icm is putting out 12 on the pos spade terminal. I do not have an led test light to test the switch though, i do know i connected a test light between the spark plug terminals on the coils and dignt get a flicker.

Im thinking either my icm IS bad, or all 3 coils are bad. 20 years stock coils and icm... Thats impressive.

I tested the signal from the crankshaft sensors and got a .5 to 1 v flux. So im assuming that checked out the best it could without an oscilloscope.

Got full 12v to icm and a perfect ground.

Still not generating a spark.

Is there some kind of computer signal sent to the icm that i need to test for? Havent ruled out a fried PCM/ECM yet.

 

better have the icm checked again. looks like there are ecm's around for a 94 3.4

 

Okay. So good news and bad news.

Good news. Its running. Pulled an ICM and Coils off a 99 Buick. Starts runs goes.

However.
No reading on my temp sensor.
Bad water pressure.
Water is boiling out the reservoir. Possibly a bad pump?

I PRAY its not a head or gasket.
Engine sounds good runs strong. Haven't had it over 30 yet.

Think I need to cut the heat on to get water flowing through heat core. What are your thoughts Crabby?

 

need to bleed the air out of the system. make sure the radiator is full and test your radiator cap

 

I believe I found the cause for my previous motor to blow. Replaced the water pump and water still wasn't flowing correctly. So I got to squeezing hoses thinking there was an air pocket. The heater core is so stopped up from the previous owner attempt to make the radiator stop leaking. Bypassed the heater core and the motor is running correctly.