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I need fuel pressure testing help :-)

Old Aug 2, 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.
 
Old Aug 2, 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
 
Old Aug 3, 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!
 
Old Aug 3, 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?
 
Old Aug 3, 2013 | 05:35 PM
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Throttle body.
 
Old Aug 3, 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.
 
Old Aug 4, 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.
 
Old Aug 7, 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
 
Old Aug 7, 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?
 
Old Aug 9, 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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