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I am working on a 1997 GMC suburban. I just replaced the

Customer Question
fuel pressure regulator and it...
I am working on a 1997 GMC suburban. I just replaced the fuel pressure regulator and it was running great. I filled the tank and now it keeps stalling or cuts out when I am driving it. I am wondering if it could be the gas or the ethanol in the gas. I checked the fuel pressure and it was right at 50psi. It even stalled briefly when it was idling but the pressure didn't change on the gauge.
Frustrated,
Derek
Submitted: 1 year ago.Category: GMC
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Answered in 1 hour by:
10/25/2016
GMC Mechanic: david craig, Owner/[email protected] 3D Atuomotive replied 1 year ago
david craig
david craig, Owner/[email protected] 3D Atuomotive
Category: GMC
Satisfied Customers: 4,034
Experience: owner/mechanic at 3D Automotive
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Hi Im David. what was the reason for replacing the fpr in the first place if i may ask?

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Customer reply replied 1 year ago
That is a good question I measured the pressure at 40 PSI and so I went to replace the fuel pump and found that the fuel hose from the fuel pump to the metal line had ruptured in the fuel tank I replaced the fuel that fuel line and check the fuel pressure and now it was a hundred PSI at that point I change the fuel pressure regulator which brought the fuel pressure back down to 50 psi
GMC Mechanic: david craig, Owner/[email protected] 3D Atuomotive replied 1 year ago

was it running rough and thats what led you to replace it ?

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Customer reply replied 1 year ago
It was having difficulty starting
GMC Mechanic: david craig, Owner/[email protected] 3D Atuomotive replied 1 year ago

so its starting ok now? but cutting out at times?

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GMC Mechanic: david craig, Owner/[email protected] 3D Atuomotive replied 1 year ago

you're going to need to monitor the engine while driving and capture the data with freeze frame when the fault occurs. otherwise we're just guessing.

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Customer reply replied 1 year ago
Ok, I will give that a shot.
Thanks
GMC Mechanic: david craig, Owner/[email protected] 3D Atuomotive replied 1 year ago

you bet

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GMC Mechanic: david craig, Owner/[email protected] 3D Atuomotive replied 1 year ago

any update?

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GMC Mechanic: david craig, Owner/[email protected] 3D Atuomotive replied 1 year ago

hello????????

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Customer reply replied 1 year ago
I put a couple bottles of heat in it and for a couple days the effects where mostly gone, now the effects have started coming back.
GMC Mechanic: david craig, Owner/[email protected] 3D Atuomotive replied 1 year ago

did you monitor the engine while driving? with a problem like this, its pretty much the only way we are going to be able to see what is happening to everything when it occurs

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GMC Mechanic: david craig, Owner/[email protected] 3D Atuomotive replied 1 year ago

do you still need assistance?

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Customer reply replied 1 year ago
I am working on some other projects for the time being, Thanks for your help.
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