problems starting car<---fuel related
07-22-2005, 02:08 PM
#1
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Join Date: Mar 2003
Location: San Marcos, TEXAS
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problems starting car<---fuel related
it has been doing this for 6-7months+..
my car doesnt want to start when it has been sitting(overnight, a few hrs, etc), it will turn, but wont start until the 2nd or 3rd try. but if turn the key on-off-on-off a few times, then try to start it, it will usually start, so i know it has something to do with my fuel, i dont think that my fuel system is holding pressure, i thought my fuel pump might be going out, but its been a VERY long time of it doing this, and my fuel pump is still working, so i think its a bad valve or something, or what about the fuel pressure regulator? are those hard to change? what do you guys think, anyhelp is GREATLY appreciated
my car doesnt want to start when it has been sitting(overnight, a few hrs, etc), it will turn, but wont start until the 2nd or 3rd try. but if turn the key on-off-on-off a few times, then try to start it, it will usually start, so i know it has something to do with my fuel, i dont think that my fuel system is holding pressure, i thought my fuel pump might be going out, but its been a VERY long time of it doing this, and my fuel pump is still working, so i think its a bad valve or something, or what about the fuel pressure regulator? are those hard to change? what do you guys think, anyhelp is GREATLY appreciated
07-22-2005, 02:22 PM
#2
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Location: Statesville NC
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Re: problems starting car<---fuel related
only way to find out is to answer your own questions by way of a fuel pressure test. The results will lead you to the corect answers. See what it primes to, if it holds, how fast it bleeds down ect
07-22-2005, 02:50 PM
#4
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Location: Statesville NC
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Re: problems starting car<---fuel related
you can get a pressure gauge from autozone or a nice long one from Jegs or summit (look in the LT1 section) All you have to do is hook that gauge up to the test port on the back of the fuel rail and take your readings.
07-22-2005, 03:03 PM
#6
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Location: San Marcos, TEXAS
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Re: problems starting car<---fuel related
hey quick question, before i do all the checking, do you think theres a good chance its not the fuel pump, since its been doing it for so long? jw
07-22-2005, 03:31 PM
#8
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Join Date: Jun 1999
Location: Minneapolis
Posts: 539
Re: problems starting car<---fuel related
If your pressure is good? Then pull up your fuel rail. Disconnect your coil wire. Have someone turn the key over. Observe if all of your injectors are spraying. It should look like a mist in a conical pattern. If the spray looks good, and your pressure is good, then your fuel system is fine. Then the problem is not your fuel system.
ZMAN
ZMAN
what else could it be???
07-22-2005, 08:45 PM
#11
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Location: San Marcos, TEXAS
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Re: problems starting car<---fuel related
no havent had the chance to, i just moved up to dallas from SA and have no tools etc w me right now, how would it be elictrical, then it wouldnt make a difference if i went on off on off on off, then tried to start, that would show that it wasnt electrical?
07-22-2005, 09:57 PM
#14
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Join Date: Jun 1999
Location: Minneapolis
Posts: 539
Re: problems starting car<---fuel related
I know you are frustrated. I didn't say it was electrical. I said it could be. After you get access to tools, check your fuel system with those checks. If it's not fuel, it has to be something else. Just trying to help you narrow it down.
ZMAN
ZMAN
