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96 blazer no start please help tring to work on it friday night

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  #11  
Old 01-31-2008, 10:31 PM
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Default RE: 96 blazer no start please help tring to work on it friday night

once it starts running the fuel pressure goes up to like 56 - 62
 
  #12  
Old 01-31-2008, 10:32 PM
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Default RE: 96 blazer no start please help tring to work on it friday night

Yea fuel pump is way more plausible on this myth busting event here I will now stick to fuel pump!!!
 
  #13  
Old 01-31-2008, 10:35 PM
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Default RE: 96 blazer no start please help tring to work on it friday night

alirte guys thanks you very much for all ur help ill put a pump in tommrow night so ill let u know how it works out
 
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Old 01-31-2008, 10:36 PM
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Default RE: 96 blazer no start please help tring to work on it friday night

As riddle said, how does the pressure hold after you turn the key off? Does it drop?

The FPR is off the back side of the injection spider under the plastic upper plenum. The SCFI motors don't have anywhere near the problems with the FPR that the CPI motors had.

One other way to lock it down to the pump would be to remove the fuel filter and hook up a pressure gauge on the supply line back there. This would eliminate the FPR from the equation. If your pump does not reach 60psi, then you either have a pump or a voltage supply problem...
 
  #15  
Old 01-31-2008, 10:39 PM
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Default RE: 96 blazer no start please help tring to work on it friday night

it stay at what it was on at as when i turned the key on
 
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Old 01-31-2008, 10:41 PM
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Default RE: 96 blazer no start please help tring to work on it friday night

ORIGINAL: swartlkk
The SCFI motors don't have anywhere near the problems with the FPR that the CPI motors had.
Man, I hope that statement didn't just jinx my regulator.
it stay at what it was on at as when i turned the key on
Then I'm going to call it a bad pump.
 
  #17  
Old 01-31-2008, 10:43 PM
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Default RE: 96 blazer no start please help tring to work on it friday night

what do u think
 
  #18  
Old 01-31-2008, 10:53 PM
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Default RE: 96 blazer no start please help tring to work on it friday night

whats scfi mean
 
  #19  
Old 01-31-2008, 10:53 PM
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Default RE: 96 blazer no start please help tring to work on it friday night

I am still going with a pump issue but to make sure do the test Swartlkk suggested to make sure so your not just swapping out part after part!!!
 
  #20  
Old 01-31-2008, 10:59 PM
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Default RE: 96 blazer no start please help tring to work on it friday night

i dont have a presure tester like that just the one that hooks up to the valve
 


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