starts then dies

strokethis_06 · Mar 26, 2015

Working on and 06. Truck starts right up and idles for a few seconds then dies. Almost like its out of fuel. Fuel pressure holds about 55. Icp, ipr, ficm, cam/crank sync are all good. Thanks guys.

strokethis_06 · Mar 26, 2015

When it dies if I crank it again without recycling the key it will not start. Recycle the key and it fires right up then dies again after a few seconds.

webb06 · Mar 26, 2015

Is compression getting in the fuel? Like an injector isn't torqued down right enough?

webb06 · Mar 26, 2015

One way to test is remove the secondary fuel filter, hold the collar down on the stand tube and crank the engine via starter jumper wire by passenger fender. If bubble appear in the fuel filter housing while holding down the collar and cranking compression is getting in the fuel.

strokethis_06 · Mar 26, 2015

Tried that. No bubbles.

webb06 · Mar 26, 2015

No codes or anything after running a self test?

When you try to restart without cycling the key none of the no start pids bring up anything revealing?

strokethis_06 · Mar 28, 2015

Nothing. Finally got it running. Started everytime with no issues for 3 days. Then back to same thing. Its like you turn ignition off. It just dies. Almost always about 8 seconds after startup. Changed nothing now it is running again.

strokethis_06 · Mar 28, 2015

When it runs for those 8 seconds it runs smooth as normal.

vinniehobart · Mar 29, 2015

whats your ficm input and output when this happens? also read the PCM input voltage while its running. I dont have a schematic with me to tell you which pins to check.

strokethis_06 · Mar 29, 2015

Ficm reads good. Waiting for it to happen again to try to troubleshoot.

vinniehobart · Mar 29, 2015

Your FICM reads 13.5-14V and 48V right up to the point it dies? Both go down simutaneously? It is interesting that something is causing it to shut off since you have fuel pressure, FICM voltage, ICP, IPR voltages. are you using auto enginuity?

strokethis_06 · Mar 29, 2015

vinniehobart said:
Your FICM reads 13.5-14V and 48V right up to the point it dies? Both go down simutaneously? It is interesting that something is causing it to shut off since you have fuel pressure, FICM voltage, ICP, IPR voltages. are you using auto enginuity?

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