Crate Engine will not start

I'd start with the simple stuff. Sensor by sensor, hose by hose check of the engine.

Is the coil getting voltage? Any fuses you took out that didn't get back. Same thing with relays.

Fuel pressure good?

MAP sensor hose attached and coolant sensor wires? Oil pressure and level senders hooked up.

O2 sensor(s) hooked up

double check the plug wires

And as one other person pointed out in a similar thread a long long time ago... is the rotor in the distributor. :)

Of course you checked the obvious things, it's getting fuel to the injectors (I assume it has FI), and it's actually getting spark to the plugs.

Is it possible the distributor is 180 deg off? How about the wires, if you have them in the wrong order it won't start. I replaced a distributor once and got all the wires one cylinder off and the engine wouldn't fire a lick.

Is this a new version of the original engine or something different? If it's something different is it possible the original engine had the firing order reversed of the new engine (they ran across that on one of those car fix up shows where they replaced a Chebby engine with a Pontiac (I think) engine and it wouldn't start for that reason).

Jeff DeWitt

GTI wrote:

Any gas in the tank?

How about spark?

What engine?

Why did you replace the engine?

Where do you have #1 clocked at in the distributor?

Is the battery good and fully charged up?

Mike

I have checked every sensor and went to the dealership to check the coil to make sure it was firing properly. The coil fires within specs on the primary and secondary outputs. Went through and checked and triple checked every connection and vacuum line. And (LOL) I did make sure the rotor was in the distributor. Made sure we were had the wires on the cap right. I can recite the firing order in my sleep mow. If I had hair to pull out I would. I think the problem is a simple one its just driving me nuts!!!

Are you sure it's getting fuel? Do you hear the fuel pump when the ignition is switched on? Is there fuel at the injectors? Are the injectors plugged in? (I know but often it's the stupid stuff that trips us up!)

Are the spark plugs actually getting spark? I know of a guy who went through this and it turned out the contact in the center of the distributor cap had fallen out.

Jeff DeWitt

The engine was supposed to be a remanufactered original jeep engine. I had thought that the engine was 180 out and rewired it to find out if this was teh case and it still didnt start. I have the #1 cylinder at TDC and the rotor is pointing at the knotch on the distributor. I have the firing order memorized as if it were my SSN. 1-5-3-6-2-4. I have tried moving the wires one forward and one back. Still nothing.

Did it run when you pulled out the old engine?

Long shot, but what about the alarm system?

Disconnect the battery, put the key in the ON position (all lights off), then connect the battery back up again, get in and try to start it.

On the 4.0, the rotor should be pointing about 5:00 when the #1 piston is at TDC with 12:00 being closest to the engine block. Firing order is clockwise.

Mike

Jeff DeWitt proclaimed:

You can check fuel by carefully dropping a few drops into the throttle body and then crank. You don't care if it starts, just if it fires.

Getting any signal from the CPS?

Engine grounded?

Are you sure it's getting fuel? Do you hear the fuel pump when the ignition is switched on? Is there fuel at the injectors? Are the injectors plugged in? (I know but often it's the stupid stuff that trips us up!)

Are the spark plugs actually getting spark? I know of a guy who went through this and it turned out the contact in the center of the distributor cap had fallen out.

Jeff DeWitt

installed....Please post solution , when found, good luck....TIA

installed....Please post solution , when found, good luck....TIA

installed....Please post solution , when found, good luck....TIA

It was tje crank position sensor. Got it running this morning after switching it out. Now i am getting a error ode 27. Gotta figure that one out. Thanks for all the help you giys have given me!!!

Injector #3, and/or 4, and/or 5, and/or 6 output driver does not respond properly to the control signal.

Doublecheck all the connectors and the wires. backprobe the injector with a noid-light