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| No-fire with new fuel injector??; Installed rebuilt injector, motor won't start. | |
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| Tweet Topic Started: Mar 8 2013, 02:36 AM (869 Views) | |
| Cobrajet25 | Mar 8 2013, 02:36 AM Post #1 |
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So I replaced the injector in my '97 3/5 with a rebuilt one from Rock Auto, and in the process hydro-locked the motor with gasoline, set the front of the car on fire, and threw out my back. Do not work with gasoline and a spark 20 minutes after you get out of a dentist's chair. Now the car won't start. I crank, crank, crank...nothing. Put the old injector back in and it fires right up. Do I need to crank more to bleed the air out of the new injector? Is there any way to "prime" it? At first I thought I just got a bad injector, but I put it on a multimeter and it has the same resistance value as the old one does. Put 12v to it for a few tenths of a second and it does the same thing as the old one does...click, click, click. Any thoughts before I send it back?
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| Memphis metro | Mar 8 2013, 04:26 AM Post #2 |
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Just pour a tiny bit of gas in the top of the throttle body and see if it will hit and finally catch by doing so. |
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| Cobrajet25 | Mar 8 2013, 04:54 AM Post #3 |
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A bit of gas will go down into the intake when I change the injector from new to old and back. Keep the injector out too long and you will hydro-lock the motor because of this, BTW. I recommend clamping or removing the fuel hose in case anyone else reads this. I went back and forth with the old and new injectors, and the motor will fire off and run with the new injector for a few seconds until the gas that leaked down burns off...then it dies. It will crank, and crank, and crank. I have cranked it for 10 seconds 3-4 times with no results. I will try a bit more fuel and see if it lights. Another thing I noticed is the contact posts for the new injector are a hair thinner than the ones for the old injector. I will try tweaking the contacts to see if that helps. Thanks! |
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| Memphis metro | Mar 8 2013, 05:30 AM Post #4 |
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You should always relieve the fuel pressure before servicing any part of the fuel system such as replacing the fuel injector. |
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| Cobrajet25 | Mar 8 2013, 05:53 AM Post #5 |
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I pull the fuel pump relay and run the engine until it dies. The fuel does not come out in a gush when I pull the injector, but it is a steady trickle until the injector is put back in. A few minutes of this and it is hydro-lock city. Clamping the fuel hose seems to do the trick. Hope it is just a contact issue. Will try again in the next few days. |
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| Vkhelldog | Mar 8 2013, 05:57 AM Post #6 |
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Probably a bad injector. |
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| Cobrajet25 | Mar 8 2013, 06:08 AM Post #7 |
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That's what I am starting to think. Weird. |
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| Damneck | Mar 8 2013, 09:46 AM Post #8 |
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Advanced Member
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Look at the part number on the new injector. I purchased a new injector .. (correct part number) and got the 1.3 injector and didnt know it. BTW for SALE --1.3 FUEL INJECTOR 50$ |
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| Deleted User | Mar 8 2013, 10:57 AM Post #9 |
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Deleted User
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It sounds like a bad fuel injector. Call Rock Auto. Chances are they will send you a new one without having to send the one you have back. I've changed several fuel injectors. The engine starts right away. |
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| Deleted User | Mar 8 2013, 11:02 AM Post #10 |
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Ahhhhhh . . . . The 3 cylinder and 4 cylinder fuel injector for the TBI systems are the same. |
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Now the car won't start. I crank, crank, crank...nothing.







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