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<table border="0" cellpadding="1" cellspacing="1" width="99%" align="center"> <tr bgcolor="#000000"><td> <table border="0" width="100%" cellpadding="3" cellspacing="0"> <tr bgcolor="#000099"> <td colspan="2" align="left"> <font size="2" color="#ffffff" face="Verdana, Arial"> <b>T O P I C R E V I E W</b> </font></td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>abe5.0</b> <br /><small>Member # 4784</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2005,7,11,23,57,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> I am having a problem starting my 1990 gt, it rotates but will not start. I can get it to start no problem with a little spray of starter fluid, but even after running it it will not start again w/out a spray of starter fluid. I am able to drive it. I think that it is not priming after i shut it off b/c i hear a big hiss and at least 5 sec of flowing liquid (pretty sure it is fuel). I think know what a car should sound like if it is priming. So my question is, What are the possible reasons the engine isn't priming itself? <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>BlackNGold</b> <br /><small>Member # 655</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2005,7,12,19,5,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> Just a guess, but the first thing I would check is your fuel pressure regulator, sounds like it's not holding pressure very well...The best thing to do is buy a fuel pressure gauge and see how much fuel pressure you actually have when you just turn the key on...<br /><br />Good luck... <img border="0" alt="[patriot]" title="" src="graemlins/patriot.gif" /> <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>89FOX</b> <br /><small>Member # 4273</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2005,7,12,19,30,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> check for pressure at the shrader valve on the fuel rail near the #1 cylinder. also check if you hear the pump going on. <img border="0" alt="[patriot]" title="" src="graemlins/patriot.gif" /> <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>six 5.0</b> <br /><small>Member # 3153</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2005,7,12,20,30,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> My old 90 had a simalr problem. Ended up being my computer, check it out. <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>abe5.0</b> <br /><small>Member # 4784</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2005,7,16,1,8,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> checked it with a fuel pressure guage, but just to make sure: the pressure is supposed to shoot up to about 35-40psi and if i do not turn it over, slowly drop? I made sure to disconnect the vaccume hose from the fuel pressure regulator, in order to make sure that i am only testing the pump. I am assuming that the pressure slowly drops becuase the regulator isn't connected to the vaccume hose. By the way the reading i got was 39psi meaning that my pump is good, right. <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>SALEENx5</b> <br /><small>Member # 1605</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2005,7,16,14,56,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> </font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by abe5.0:<br /><strong> checked it with a fuel pressure guage, but just to make sure: the pressure is supposed to shoot up to about 35-40psi and if i do not turn it over, slowly drop?</strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">What did it slowly drop to? After engine shut off, fuel pressure is still maintained in the fuel lines by an anti-drainback valve in the fuel pump. Attatch the fuel gauge, start and let the engine run, shut it off and check to see how much of a pressure drop there is. It shouldn't drop to zero as this will cause extra fuel pump priming in order for the fuel pressure to build up for the next start-up cycle. As far as what fuel pressure should be: KOEO (KOER w/vacuum hose disconnected) 35-45 PSI. KOER (w/vacuum hose connected) 30-40 PSI. If fuel pressure is not maintained after engine shut off, then you have a bad fuel pump. A sticking open or damaged diaphragm in the fuel pressure regulator will also cause a loss of pressure after engine shut off. However, your reading of 39 psi would not be possible with a damaged regulator so you could probably rule that out. <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>blind</b> <br /><small>Member # 3052</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2005,7,16,15,36,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> my car holds its fuel pressure for about 2 hours before slowing dropping if the engine is not running. <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>abe5.0</b> <br /><small>Member # 4784</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2005,7,16,19,28,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> so the pressure dropped w/regualtor connected to 0psi, does that mean i have to replace the fuel pump? <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>89FOX</b> <br /><small>Member # 4273</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2005,7,19,21,31,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> is your fuel pump whining when you turn your key to the on position if so signs of a bad pump. <img border="0" alt="[patriot]" title="" src="graemlins/patriot.gif" /> <br /> </font> </td></tr> </table></td></tr></table> <br /> <br />
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