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  #1  
Old 07-24-2011, 02:44 PM
ranger8432 ranger8432 is offline
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Default no spark, no fuel pressure, no start

My starter sounds like it's trying to turn over but the truck just won't start. I checked-- no spark, no fuel pressure. So far I have replaced the pcm relay, fuel pump relay, ignition switch. All the fuses in the fuse box at the driver's dash are good and everything in the distribution box seems okay. Please help!
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Old 07-24-2011, 02:53 PM
budgetliftedranger budgetliftedranger is offline
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Default Re: no spark, no fuel pressure, no start

Been there... Have u tested your fuel pump inertia switch with a test light? I dont know about your truck but mine has 3 wires going to it, a thick pink, a thick green, and a thin grey... The green one should have power for 3 seconds when u turn the key to prime the pump, those stupid switchs die without warning and can shutdown fuel and spark! If its bad u can get a new one or cut the fat wires and twist them together, but test the connection first...
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Old 07-24-2011, 03:58 PM
ranger8432 ranger8432 is offline
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Default Re: no spark, no fuel pressure, no start

Where will I find the fuel pump inertia switch, is it on the pump? Thanks
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Old 07-24-2011, 05:27 PM
budgetliftedranger budgetliftedranger is offline
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Default Re: no spark, no fuel pressure, no start

No, its under the glove box... Its a small black box with a red button on top, its a safty switch that shuts your motor off when u get in an accident... Before u cut wires try pushing the button down and if it doesnt work pull the connector off and check the green wire for power, the pink one goes to the pump...
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Old 07-24-2011, 09:48 PM
ranger8432 ranger8432 is offline
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Default Re: no spark, no fuel pressure, no start

Thanks for you're help, I will try that!
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Old 07-27-2011, 10:11 PM
ranger8432 ranger8432 is offline
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Default Re: no spark, no fuel pressure, no start

I changed the inertia switch, but that didn't work. I went to the dealership and talked to the service tech, he said it was either that or the fuel pump, which would be about $800 to fix. I don't get how that would account for the no spark problem. I'm at my wits end and I don't relish the thought of changing the fuel pump myself!
Any other ideas?
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Old 08-03-2011, 07:19 PM
budgetliftedranger budgetliftedranger is offline
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Default Re: no spark, no fuel pressure, no start

Ive done my fuel pump myself, 120$ sounds better than 800$! Its not too bad, just drop the tank.

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If its not the fuel pump the only other thing i can think of is the computer, its 250$ to rebuild... Im not 100% sure but it happen to me
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  #8  
Old 08-03-2011, 08:23 PM
tmoore78 tmoore78 is offline
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Default

I'm sure our trucks have these but have you checked the crank sensor? I had a Saturn that had these issues and the crank sensor was bad.
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Old 08-03-2011, 08:39 PM
klinger86 klinger86 is offline
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Default Re: no spark, no fuel pressure, no start

check the crank and cam sensor if either is bad the computer wont let the fuel pump turn on or the coils fire.....
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Old 08-03-2011, 11:22 PM
sheltonfilms sheltonfilms is offline
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Default Re: no spark, no fuel pressure, no start

I would get some sort of code scanner and see if it even connects to your PCM. The PCM maybe bad. I saw a 2001 Taurus with the same prob.
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  #11  
Old 08-04-2011, 03:05 PM
vishous vishous is offline
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Default Re: no spark, no fuel pressure, no start

i agree, check your crank sensor, if it goes bad u loose fuel and spark
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  #12  
Old 08-07-2011, 01:32 AM
ranger8432 ranger8432 is offline
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Default Re: no spark, no fuel pressure, no start

Thanks for all your input, I changed the fuel pump and it seems to be fine so far. It's been a week and no problems starting.
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