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View Full Version : Just another my 4.0 isn't Running Topic, Checked it out today



betrayed93
03-29-2010, 04:08 PM
So far this xj is the first of 8 xj's to give me shit!

Anyway I allready went through all this Bs to get the damn thing running when I bought it,NEW FUEL FILTER- NEW CPS - NEW DISTY WITH CAMSHAFT SENSOR - plugs wires cap rotor - new battery - new starter - This Jeep finally ran after I put it in time and added the new distributor,

NOW 1 week later I go out to work on it and the SOB will not run! It fires up and shuts back down,

Add starting fluid and it runs till the fluids out so that shows me its fuel!

Fuel pump Checks out, Fuel pressure checks out,

From what I gather the camshaft sensor sends the fuel injector pulses, BEFORE IT WOULD just crank and not start and it turned out after all those things I replaced that it was the camshaft sensor, Now it starts and runs for 2 sec and shuts down! I PUT 6 gallon of fuel in it just to try it out with no luck,

This jeep is really earning its title. HEEP

Any input ? Im working on it now but if nothing works Id love to here some new ideas to check out on it tomarrow

limegreentj
03-29-2010, 04:40 PM
check the freeze plugs...maybe they blew out!! LOL im joking!!

but seriously....MAP/MAF sensor

that can do it....vacuum leak?