I have an 86 Bronco 2 that wont start. It all happened about two weeks ago. I was comming home and the truck started to cut out on me it happened twice and the third time it died. I tried a bunch of things and can get it to crank it just wont start. I bypassed a lot of thing to make sure they work including fuel pumps. I even tried a new ecm and all I can do is crank it w/o starting. It does start on either and all I can do is wonder what happened. any help will do this is my last resort.

 

Have you replaced the TFI module? That can cause the engine to cut out and not run.

 

yes I replaced the tfi module I cant figure out why gas wont go to the cylinders

 

are you sure you are getting fuel to the injectors?

 

Yes there is pressure on the fuel rail.

 

did you verify spark at the plugs?

 

well, I am no genius at this, but one thing I DO know is that if you have fuel and spark then it will start. If, in fact, you have verified that the plugs are getting fire and that they are themselves in a suitable condition to create the sparks inside of the cyl (you could save us all alot of time just by telling us up front exactly what all you have done/checked) AND you have, as you said, verified that you are getting fuel to the fuel rail then it seems to me that the only OTHER thing that is between you and a running truck are those injectors. This could mean a few different things. Either (1) all of your injectors have gone bad, (2) your computer is not telling the injectors to "inject" and therefore is no good, or (3) your computer IS telling the injectors to inject but somehow the signal is not getting to the injectors (aka: bad connection, wire, SOMETHING). You said that you "can't figure out why gas won't go to the cylinders"....have you actually verified that gas is NOT going to the cylinders? if not, an easy way to do this is simply to remove the plug wires and crank the engine over quite a bit with the throttle open and then pull a plug to see if it is wet. If it is then you ARE getting fuel to the cylinders and your problem is something entirely different. Keep us posted.

Joe

 

Thanks guys you all were a real help it ended up being a ground wire to the fuel pump which I couldnt find and also a ground wire came off the battery. I bypassed the ground to the fuel pump and it now runs like a champ