Author Topic: Installed new fuel tank and fuel pump  (Read 2759 times)

Offline A-Rod

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Installed new fuel tank and fuel pump
« on: January 22, 2016, 05:39:48 PM »


I tried starting the truck but no fuel getting the carburetor the injectors might be bad. Took the injectors off and try them with a 9v battery but not doing nothing. Im frustrated and the injectors cost me $80 each plus $25 for the rebuild kit.


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Offline roundhouse

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Re: Installed new fuel tank and fuel pump
« Reply #1 on: January 23, 2016, 06:08:34 AM »
The fuel pump running ?


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Offline Greybeard

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Re: Installed new fuel tank and fuel pump
« Reply #2 on: January 23, 2016, 02:39:37 PM »
Not to be a smart ass but you said no fuel getting to carb then went on to say injectors not working?  :o

What year truck....87 or newer with TBI?
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Offline A-Rod

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Re: Installed new fuel tank and fuel pump
« Reply #3 on: January 23, 2016, 04:21:40 PM »
Not at all grey i was posting and doing a diagnosis at the same time. But yea carburetor got gas coming to it but the injector are not working. I got it apart right know waiting for the injectors. After the truck siting for 15 years im trying to bring it to live again.


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Offline Greybeard

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Re: Installed new fuel tank and fuel pump
« Reply #4 on: January 23, 2016, 04:46:44 PM »
I'm still confused, is it a TBI (Throttle Body Injection) or a carb?

A carb does not have "injectors", but if it is a Holley it does have 'squirters' (otherwise known as Accelerator Pump Discharge Nozzles). nuff said.

If, in fact, it is a carb, then the accelerator pump is not working.
If it is a TBI, then I have no help for you. I have never worked on fuel injection before. 
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Offline A-Rod

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Re: Installed new fuel tank and fuel pump
« Reply #5 on: January 23, 2016, 05:23:31 PM »
TBI fuel injector thanks anyway is a little pain in the butt. I think i got it figured out.




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Offline Greybeard

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Re: Installed new fuel tank and fuel pump
« Reply #6 on: January 23, 2016, 05:29:29 PM »
No problem, I have worked one time on them long ago, they beat my head in the dirt. I'm older and wiser now, I stick with simple stuff  ;D
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Offline Captain Swampy

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Re: Installed new fuel tank and fuel pump
« Reply #7 on: January 27, 2016, 12:15:22 PM »
You need a noid light that plugs in place of the injector. It should flash while cranking the engine. You can rent or buy them from most auto parts stores. At the junction block on the firewall, the wire that comes off it is a fusible link that feeds part of the fuse panel. It should be OK if your fuel pump is running. TBIchips.com has a lot of info.
1987  350TBI 700R4  4X4  4.56 gears  33" BFG All Terrain


http://forum.73-87chevytrucks.com/smforum/index.php?topic=32209.0

Offline A-Rod

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Re: Installed new fuel tank and fuel pump
« Reply #8 on: January 28, 2016, 10:52:04 AM »
Thanks captain swampy


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Offline Irish_Alley

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Re: Installed new fuel tank and fuel pump
« Reply #9 on: January 28, 2016, 11:14:22 PM »
once you test the signal with the noid light report back. the injectors get the signal to fire from the distributor, the fuel pump gets the command to prime from the ecm and to stay on from the oil pressure switch . you can bypass the ecm/oil pressure switch my running 12v to the 3" red wire on the fuel pump relay. 
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When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline Irish_Alley

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If you canít tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes