jovanny Posted January 6, 2014 Report Share Posted January 6, 2014 Could the fuel pressure regulator be the cause of my hard starting? Quote Link to comment Share on other sites More sharing options...
Mr.Scary Posted January 6, 2014 Report Share Posted January 6, 2014 or bad fuel pump? Quote Link to comment Share on other sites More sharing options...
Blown 346 Posted January 6, 2014 Report Share Posted January 6, 2014 Hard starting could be a number of things. Moisture in fuel bad fuel clogged fuel filter for 2003's. battery issues Alternator issues TPS sensor MAF sensor Cam sensor Crank sensor etc etc... Do you have light on the dash? Any codes pulled. What exactly is thew truck doing? Is it cranking, or cranking slow, lights dimming etc.... Quote Link to comment Share on other sites More sharing options...
jovanny Posted January 6, 2014 Author Report Share Posted January 6, 2014 No codes as of yet, it cranks for about 3 seconds and it starts , Quote Link to comment Share on other sites More sharing options...
canadianVRss Posted January 6, 2014 Report Share Posted January 6, 2014 When it runs, does it run well or sputter and/or idle roughly? Quote Link to comment Share on other sites More sharing options...
jovanny Posted January 6, 2014 Author Report Share Posted January 6, 2014 When it runs, does it run well or sputter and/or idle roughly? Just a little after it starts , then it idles smooth Quote Link to comment Share on other sites More sharing options...
Blown 346 Posted January 6, 2014 Report Share Posted January 6, 2014 If you havet replaced the fuel filter I would, They need to be replaced every year. Then I would run some sea foam thru the gas tank to help clean things up. If you havent replaced the plugs do that and or atleast check the burn color on them and the gap. that could be a problem. Quote Link to comment Share on other sites More sharing options...
jovanny Posted January 6, 2014 Author Report Share Posted January 6, 2014 If you havet replaced the fuel filter I would, They need to be replaced every year. Then I would run some sea foam thru the gas tank to help clean things up. If you havent replaced the plugs do that and or atleast check the burn color on them and the gap. that could be a problem. I just changed the plugs and wires, i'll replace the filter this weekend , Quote Link to comment Share on other sites More sharing options...
canadianVRss Posted January 6, 2014 Report Share Posted January 6, 2014 Just a little after it starts , then it idles smooth How old are your plugs? The first thing I'd do if I were you would be to replace the plugs, they're cheap, quick and new plugs are always good. Then check the fuel pressure. It probably wouldn't hurt to fuel up at a different gas station to rule out fuel quality as well. Quote Link to comment Share on other sites More sharing options...
smalltownguy Posted January 6, 2014 Report Share Posted January 6, 2014 Could be the fuel pump... mine does the same thing but I hadn't gotten around to swapping the pump out before I left since I was gonna drop in a walbro eventually anyway. Try this: turn the key on and wait a few seconds, then turn it off and back on again and wait a few seconds before turning the key all the way to engage starter and see if that works. Quote Link to comment Share on other sites More sharing options...
jovanny Posted January 6, 2014 Author Report Share Posted January 6, 2014 How old are your plugs? The first thing I'd do if I were you would be to replace the plugs, they're cheap, quick and new plugs are always good. Then check the fuel pressure. It probably wouldn't hurt to fuel up at a different gas station to rule out fuel quality as well. The plugs and wires are 3 weeks old Could be the fuel pump... mine does the same thing but I hadn't gotten around to swapping the pump out before I left since I was gonna drop in a walbro eventually anyway. Try this: turn the key on and wait a few seconds, then turn it off and back on again and wait a few seconds before turning the key all the way to engage starter and see if that works. I'll try it tommorow morning Quote Link to comment Share on other sites More sharing options...
Bigtoyz97 Posted January 6, 2014 Report Share Posted January 6, 2014 I have had a fuel reg go bad on me before.......and do what you are describing. But I would put a gauge on it and see what it is doing. Does pressure slowly go down after its been sitting awhile or does it bleed back right away? And also if the pressure bounce's around a little could be a weak spring in the fuel reg. And what does it do when it is running and at idle, cruise, etc..... Just throwing some idea's for you to look for. On my S10 it always took a couple of primes cause reg got weak and wouldn't hold pressure for very long of a time. But it ran good once it was running. Set over night and you had to cycle the key a couple of times. Quote Link to comment Share on other sites More sharing options...
jovanny Posted January 6, 2014 Author Report Share Posted January 6, 2014 Here's a sound clip : Quote Link to comment Share on other sites More sharing options...
Blown 346 Posted January 6, 2014 Report Share Posted January 6, 2014 I would first replace the filter, have a battery and Alternator test done. Test the fuel pressure off the fuel rail. That will tell you where the problem is or isnt. Quote Link to comment Share on other sites More sharing options...
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