OK, I wil try to get the list of todays events in order.
I woke up and had some coffee. Then scratched my stuff for a while and went outside to attack this thing.
I got the new coolant hoses in, decided it was best to get all of em.
Installed the new battery,just as Sparksaflyin showed up. I cranked it over and nothing, not even an encouraging skip. Not one cylinder was hitting.
Ok, I disconnected the #2 injector plug and had Mark crank the engine while I tried to get a voltage reading on the plug. My meter isn't really fast enough but I did see it changing state. This told me the ECU was "telling" the injectors to fire.
I then hooked up my timing light to the #1 spark plug wire, had Mark crank the engine again, and the timing light flashed. This told me we has spark.
Hmmm
Checking the schrader valve on the fuel rail, resluted in a spray of fuel. Ok, we have fuel pressure.
hmmm
So, in desperation I started removing parts from the "Old" engine to try to get a handle on this.
First I assumed the spark might be mis timed, so, I swapped the crank sensor. The "new" engines sensor was pretty dusty, so I was encouraged by that sign.
Cranked the engine and nada. hmmmm
So, let's see, matbe the coil pack is weak. removing a wire resulted in a seen arc, however, we can swap it right quick.
Got the "new" coilpack in , cranked it and nope again.
hmmm
Ok, I had squirted some transmission fluid into the cylinders, maybe it fouled the plugs. I tried the old set from the known to run engine, and nope.
hmmm
I then started to suspect timing chain, although the oil pressure gauge indicated there was good oil pressure, which rose while cranking.
So, I removed the #5 plug again, not only is it the easiest to get to, it is also the lowest compression cylinder on this engine at 186 psi
Checking the compression, ( this time Joshua cranked the engine for me) the guage jumped right up to 186 psi---cold. This is awesome but told me no clue as to why this engine will not run
About this time my lovely bride called saying she was about to get to Chanute, returning from a weekend shopping trip in Branson. If I leave now she will not have to wait. I said."well we wouldn't want that now would we" and headed out to grab her.
On the way home I grabbed a can of starting fluid.
When we got home I sprayed starting fluid into the throttle body, while Mark cranked the engine. Would you believe it fired up?
Ok, so we have a fuel delivery issue big time.
Hmm,
All I could put together out of all this in my head at this point was the fuel rail--injectors. So, in another act of desperation, I pulled the intake and went about the chore of swapping the injectors and fuel rail. Good thing I had extra gaskets.
I pulled the stuff from this motor, and then pulled the set from the original cracked head engine that moved the truck into the drive way earlier.
I cleaned it all up, swapped the regulator to the replacement rail, and put it all back together. Fishing those injectors in with a sore back was about all I could do for the day. I really don't care for that set up, but whatcha gonna do?
Anyway, I wiped off my hands, cranked the engine and it fired right up.
Wow, I was actually surprised. It blew a lot of smoke while the trans fluid all burned out, but quickly cleaned up and settled down to a nice smooth idle.
I have some coolant flush in there now, with the thermostat removed for good circulation.I also have 1 quart of trans fluid and a half a can of sea-foam in the crank case
I plan on running it again until warm tomorrow, then I will drain the fluids and refill.
But for now, could someone explain how a fuel rail could prevent an engine from even kicking? I could see one, maybe 2 bad injectors, but for all of it to fail? I would think 1 or 2 injectors firing would at least give you a slip or buck while cranking. This one has me stumped.
Or, is there a wiring issue I am not aware of? It seemed the injectors were all plugged in well to me. I am not sure which year engine is what here in my possession, did they change the injector plugs in the span of 90-94?
The injectors all looked identical to me.
I'm proud of you buddy!!
