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Where's the fuel pressure regulator on a 2001 buick lesabre

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In the tank.. there is a chamber with the pump.. there is a tbi sensor in the tb unit that may be bad..

Posted on Dec 28, 2013

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My 1994 buick lesabre misses out

Check the fuel pressure. It will tell you if the pump, fuel filter, and fuel pressure regulator are all good. Fuel pressure is critical on fuel injected engines.

Check your spark plugs for wear or the wrong gap.

Another possibility is a vacuum or air leak. Check all vacuum hoses and the intake manifold gasket. The GM 3.8L engine is prone to lower intake manifold gasket failures. Sometimes the upper intake gasket, too.

Sep 09, 2014 | 1994 Buick LeSabre

1 Answer

My 2001 buick lesabre is pulling a random misfire code and spits and sputters and smells like the car is floading

find the fuel pressure regulator. you should see it mounted on the return line of the fuel rail under the plastic engine cover. it will have a small vacuum hose attached to it. Remove the hose and see if gas comes out of the regulator. If it does replace it immediately.

Apr 08, 2013 | 2001 Buick LeSabre

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2001 Buick Lesabre almost starts but doesn't


Feb 13, 2013 | 2001 Buick LeSabre

1 Answer

2001 buick lesabre custom sputtering when stopped

ck fuel pressure plugs and wires coils fuel injectors

Jul 29, 2012 | 2001 Buick LeSabre

2 Answers

Could cloaged fuel injectors cause fuel to leak out of throttle body on a 97 buick lesabre ?

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Hi Steven Phillips:
It's possible but not very likely unless there has been a recent removal of the injectors and new O rings were not installed.
I suggest that you take the vehicle to the closest AutoZone and have them perform a fuel pressure test and a full diagnostic scan. Both are free of charge.
It's possible that you have leaking fuel line or fuel pressure regulator. The pressure test will enable you to evaluate both possibilities. Incidentally, replacing O rings, fuel lines and pressure regulators are fixes you can do yourself.
Feel free to follow up with me should you so desire.
All the best,

Dec 04, 2011 | 1997 Buick LeSabre

1 Answer

Replaced ignition control module on 1994 buick lesabre, now it will start, but runs crappy also replaced crank sensor, cam sensor, all 3 coil packs, spaek plugs, and front 3 wires

check fuel pressure are fuel rail? Should be 40-47 psi. Also check filter at rear frame rail near RR tire, pull vacuum line off fuel pressure regulator at intake mainfold. Should have vac. and be dry, no gas at fitting.

Aug 21, 2011 | 1994 Buick LeSabre

1 Answer

1995 buick lesabre 3.8 turns over but will not crank.will run if you keep spraying gas into throttle body.

Replace the fuel pump...if you have already, then replace your fuel pressure regulator.

Sep 13, 2010 | 1995 Buick LeSabre

1 Answer

1996 buick LeSabre runs rough at 50 mph

Sounds like low fuel pressure. i.e. fuel pump, fuel pressure regulator, or fuel filter.

Jun 02, 2009 | 1996 Buick LeSabre

1 Answer

I cant find where the fuel pressure regulator is

it is located on the fuel supply rail (connects to top of fuel injectrs) to the fuel injectors, it has a vacuum hose going to it.

Apr 18, 2009 | 1994 Buick LeSabre

1 Answer

98 Buick Lesabre-fuel regulator

The nipple that will leak it on the regulator, its a device that is about a inch around and sits just forward of the intake. The other end of the hose leads up to the top of the throttle body.

Aug 20, 2008 | 1994 Buick LeSabre

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