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I need fuel pressure testing help :-)

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Old 08-02-2013, 03:43 PM
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Default I need fuel pressure testing help :-)

First time posting here. I'm not sure I'm doing it in the right place.
 
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Old 08-02-2013, 04:15 PM
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What is it that you need help with? As soon as I know that I can move this to the correct place for you
 
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Old 08-03-2013, 12:26 PM
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I have an 87 k-5 blazer. I went to go for wheeling the other day. I let her warm up, them out her in hear and she died :-( I can not get her going. If I prime her she Ttys to fire so I know it has spark. I'm thinking it is a fuel problem. Weller do I find the test valve to test the fuel pressure? And another advice is great!
 
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Old 08-03-2013, 01:17 PM
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87... Is it throttle body injected? (has the electric "carb" with 2 injectors) or is it oldschool carberated?
 
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Old 08-03-2013, 05:35 PM
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Throttle body.
 
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Old 08-03-2013, 06:04 PM
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all you can do is,buy a adapter for the throttle body off ebay etc. (search tbi fuel pressure adapter). Then go to autozone etc and "loan" a fuel pressure tester. Its free but you have to leave the retail deposit which is refundable when you bring it back.

it has to be between 10-13 psi.
 
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Old 08-04-2013, 11:21 AM
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Is that the best first step. Or is there something I can test or do now while I wait for the part.
 
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Old 08-07-2013, 08:19 AM
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*Moved to: Full Size K5 Tech*

I moved your thread to this section so you should be able to get some more help. Like Chris said start with the pressure test. Its the absolute best place to start in any "fuel issue" suspected diagnosis
 
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Old 08-07-2013, 10:05 AM
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Simple question, do you have fuel in the tank? You wouldn't be the first to solve the problem with $5 of fuel in a red can, me included

What do you mean "prime"? You mean when you turn the key the pump will whir for a few seconds?

When you say you know there is spark is that because as it cranks it 'almost' fires up?
 
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Old 08-09-2013, 10:49 AM
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Fuel in tank about three gallons.
I don't hear the pump at all when I turn the key on.
Pretty sure it has spark cause if I put gas in the intake it Trys to start
 


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