ok, but what is the pressure?? there may be enough to make it start but not enough to keep it running.

Roy

Answered by ASEMaster6371 (expert)
24,854 answers provided

Did you try starting with gas pedal slightly depressed?

Answered by KHLow2008 (expert)
39,939 answers provided

there seemed to be alot of pressure at the rails as it squirted fuel out all over my hand. i did try to keep it running by slightly pressing the throttle while cranking. i didnt want to do it too much for fear of washing down the cylinders. crank sensor related? im guessing it wouldnt even fire if it was bad? tps? iac?

Response from lukeroberts
1 question asked

When it fires up, try feathering the throttle and if you can keep it running that would mean the idle control system is not functioning correctly.
The IAC could be stuck in the closed position and there are restrictions in the air passage due to dirt accumulation.

Answered by KHLow2008 (expert)
39,939 answers provided

i've tried feathering the throttle and also held it to the floor, it wont run. it acts like an older Ford with the iac stuck in cold weather. it literally will crank, fire and immediately die. i will check the iac and get back to you. i drove the truck before all this and it crank and ran fine other than the gauges and door locks not functioning right. all this came about after the battery change. it did crank and run great after the battery change, i really dont think its related to the battery change though....

Response from lukeroberts
1 question asked

The battery change can be the cause because when power to the engine computer is disconneted, it would lose its memory and after reconnecting, the engine computer would need to relearn. Any clogging of idle air passages can result in stalling during idling.

Answered by KHLow2008 (expert)
39,939 answers provided

i checked the iac and it is working properly, i took it off and cleaned it also. im going to sleep on it for a little while (working nights this week). what about the crank sensor? i am also going to check fuel pressure with a gauge during cranking to be sure, but i wont have access to a gauge til tomorrow (sat).

Response from lukeroberts
1 question asked

Sounds like it's in theft mode. Will consistently run for two seconds and die.

Answered by caradiodoc (expert)
17,308 answers provided

so how doi get it out of theft mode?

Response from lukeroberts
1 question asked

Is the security light blinking or steady when attempting to start engine?

Answered by KHLow2008 (expert)
39,939 answers provided