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2013 Chevrolet Suburban
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1999 Suburban 5.7 Not Starting

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Old August 27th, 2012, 5:45 PM
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okay I hooked up the pressure tester then turn the key to the on position and it read 60 PSI on the dot
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Old August 27th, 2012, 7:11 PM
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Would you happen to have a picture of the spider? Also, could it possibly be some sort of mass air flow sensor or ignition coil issue preventing it from starting?
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Old August 28th, 2012, 3:13 AM
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Actually I said that wrong it was at 62 psi but when o turn the key into the off position it drops right back back down
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Old August 28th, 2012, 6:55 AM
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How much does the pressure drop after 5min,are there any codes stored? do you have spark? the crank sensors are know for going on these trucks mine did left me in my driveway
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Old August 28th, 2012, 10:56 AM
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Im about to check all of that i did put a little gas through the intake for lack of starting fluid and it did start up for a sec but died shortly after
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Old August 28th, 2012, 12:17 PM
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She had the codes ran 3 weeks ago when the problem started and i got a P0300 P0420
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Old August 28th, 2012, 12:27 PM
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Also i dont know if this has anything to do with it but the gas gauge stopped working a few months ago as well
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Old August 28th, 2012, 4:23 PM
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So it is getting spark and it starting with gas in intake would make it for sure a fuel problemcorrect.
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Old August 28th, 2012, 5:19 PM
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Originally Posted by TrevorSwartz
So it is getting spark and it starting with gas in intake would make it for sure a fuel problemcorrect.
Not getting fuel, yes. This is either fuel pump or injectors not getting pulses to open.
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Old August 28th, 2012, 9:24 PM
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check the fuses ecm-1 and eng-1 theres a similar thread over on the silverado side of this forum might be some info there
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