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fuel pressure test day...

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1.6K views 3 replies 2 participants last post by  88pathoffroad  
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#1 ·
i checked my fuel pressure today, and this is what i found:

100_1537.flv - Video - Photobucket - Video and Image Hosting

the numbers are a bit blurry, but the need hovers around 32-34 psi. Good? Or not so good?.......when it was reved up, it goes up to around 40, but pretty much immediatley drops back down-even before the revs drop off.
 
8
#2 · (Edited)
That's pretty close for a 87-92 4-cyl or 87-89 V6. Video looks like a 87-89 V6 pickup. What year and engine are we talking about?

Sounds like you have a broken exhaust stud or two...
 
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#4 ·
You are correct; at idle you should have 34 psi with the pressure regulator vacuum hose connected, 43 psi with it disconnected.
 
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