wont idle right, some times wont even start???????
11-09-2009, 07:47 PM
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wont idle right, some times wont even start???????
i have a 2000 gmc rcsb 4.8, flowmasters, shackles. when i crank it cold it takes around 3 to 5 tries to start, it helps to give it gas while cranking it, well thats been going on for a long time, so this weeknd it got worse, it whould bearly start, so i changed my fuel filter, i thought maby it was getting cloged, that didnt help at all. today when i tryed to start it, it would fire for like 3 sec's but wouldnt stay running?? the only thing i can think of is the fuel pump??? yall have any ideas????
11-09-2009, 08:12 PM
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11-09-2009, 09:04 PM
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The Mass Airflow Sensor might also be dirty or going bad.
I haven't looked up a price on a fuel pump for these but before going out and buying one I would see if you can buy or borrow a fuel pressure gauge from the parts store and see if you getting at least 56 psi at the fuel rail.
I haven't looked up a price on a fuel pump for these but before going out and buying one I would see if you can buy or borrow a fuel pressure gauge from the parts store and see if you getting at least 56 psi at the fuel rail.
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11-10-2009, 07:19 PM
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yea the pump makes sum WEIROD nosies some times, or some times i cant hear anything, but my dad said it might be a injector thats beeding off, cause when i start it u can smell gas and it smokes when i start it cold, so its flooding???