2004 Buick Ranier car seems to cut out

2004 BUICK RANIER
93,200 MILES • 4.2L • 6 CYL • 2WD • AUTOMATIC
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LDW1679
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When idling the car runs smooth. But once i start driving it i have to keep the rpms up over 2000 or the car starts cutting out and lugging down like it is starving for fuel. I have already changed fuel filter. And if i go to climb a hill. A really have to get on it or it really lugs down
Aug 14, 2015 at 9:26 PM
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HMAC300
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scan for codes and check fuel pressure with a gauge auto parts rent it.
Aug 14, 2015 at 10:53 PM
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LDW1679
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Do they rent the code scanner. And if so. What do i ask for
Aug 15, 2015 at 1:06 AM
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HMAC300
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auto parts will normally scan your engine for free just have to take it there
Aug 15, 2015 at 1:50 AM
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LDW1679
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Ok. Thanks
Aug 15, 2015 at 2:18 AM
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LDW1679
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From what i described. What would be your opinion on what is wrong
Aug 15, 2015 at 2:30 AM
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HMAC300
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I'd say fuel pressure but those have a few other ting that can cause that. scanning for codes and fuel pressure check will tell you a lot.
Aug 15, 2015 at 6:06 AM
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LDW1679
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What should my fuel pressure be at when idling and what should it be while driving it
Aug 15, 2015 at 6:21 AM
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HMAC300
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you only test it with key on not engine running should be 50-57 psi and should not drop 5psi for one minute
Aug 15, 2015 at 6:31 AM
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LDW1679
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Where do I tie in at to check fuel pressure on my 2004 Buick rainier
Sep 21, 2015 at 7:10 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
sorry, this has no connection for fuel rail so you will need an adapter which i'm not sure is commercially available at auto parts. so it may take a mechanic to do it.
Sep 21, 2015 at 8:00 AM
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