2004 Buick Ranier car seems to cut out

LDW1679

MEMBER
2004 BUICK RANIER
4.2L
6 CYL
2WD
AUTOMATIC
93,200 MILES

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

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HMAC300

MECHANIC
48,601 POSTS

Scan for codes and check fuel pressure with a gauge auto parts rent it.

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Saturday, August 15th, 2015 AT 5:53 AM

LDW1679

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6 POSTS

Do they rent the code scanner. And if so. What do I ask for

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Saturday, August 15th, 2015 AT 9:30 AM

HMAC300

MECHANIC
48,601 POSTS

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.

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Saturday, August 15th, 2015 AT 1:06 PM

LDW1679

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6 POSTS

What should my fuel pressure be at when idling and what should it be while driving it

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Saturday, August 15th, 2015 AT 1:21 PM

HMAC300

MECHANIC
48,601 POSTS

You only test it with key on not engine running should be 50-57 psi and should not drop 5psi for one minute

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Saturday, August 15th, 2015 AT 1:31 PM

LDW1679

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6 POSTS

Where do I tie in at to check fuel pressure on my 2004 Buick rainier

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Monday, September 21st, 2015 AT 2:10 PM

HMAC300

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.

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Monday, September 21st, 2015 AT 3:00 PM