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Buick Century Fuel System

22 messages,  Last post on Mar 20, 2011 at 4:24 AM

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What is this discussion about? Buick Century, Fuel System

Messages Page 2 of 3

#3 of 22 Fuel Pressure by mprdave

Mar 15, 2007 (3:34 am)

My 93 3.3L Century runs fine at idle but when you put in gear it hesitates and almost shuts off. Fuel pressure is running at 31 psi key on motor off and 31 psi motor on. Pulled vaccume line off of the fuel pressure reg and had no increase in psi and the motor died. Whats UP!!
Have replaced fuel filter.

#4 of 22 1995 Biuck Century not gettig fuel by dunky1

Jun 28, 2007 (3:43 pm)

The car quit running. Thought it was the fuel pump. Put in new pump. Still not running. I can put fuel in the motor and it runs. But i will not start without putting fuel in the motor.

#5 of 22 Re: Fuel Injection in 1991 Century [wendyp] by noodlesknowles

Jul 26, 2007 (2:35 pm)

Replying to: wendyp (Sep 06, 2006 4:38 pm)
must be a common problem, do all of the people who posted here have the V6? I have a 94, basically same model as all of you, same thing, chugging as though not getting enough gas, but it has a new fuel filter, I took it to the shop and they gave it a clean bill of health(after doing work on the fuel system)a few months later, its back to chugging and even stalling out once in a while. anyone figured out a fix for this let me know, thanks

#6 of 22 Re: Fuel Injection in 1991 Century [hoodlatch] by broduer

Aug 12, 2007 (3:26 pm)

Replying to: hoodlatch (Oct 13, 2006 5:23 pm)
How easy was it to change the fuel filter and where is located?

#7 of 22 Re: Fuel Injection in 1991 Century [broduer] by mprdave

Sep 16, 2007 (5:10 pm)

Replying to: broduer (Aug 12, 2007 3:26 pm)
Fuel filter is located near the right rear wheel. You'll half to put the rear on stands and take off wheel to get to it. It is mounted on the frame. You will have to get the pressure of off the line before changing or you will get sprayed. I used a fuel pressure guage hooked to the fuel rail to bleed off the line pressure first. After pressure is gone there is a clip in front of and behind the filter. Just squeze the tabs and pull off. put in new filter and check for leaks. make sure the clips are locked in good.

#8 of 22 pump? by andale

Oct 11, 2007 (4:03 pm)

i have the 93 3.3 v6 and mine is stuttering a lot and some times i get a code 44 - running lean and all the things it may entail.
I replaced my fuel filter and it didn't change, i have wondered if it may be my pump, which apparently does not prime.

#9 of 22 thinking of changing fuel pump buick century 94 by cactusk

Oct 12, 2007 (10:02 am)

was thinking of changing the fuel pump... car started stalling end of July in the high temps we were having here. Tried several ideas -- thought we had bad fuel -- changed fuel filter -- but problem has just progressively got worse. Is there an access port to change pump or do I have to drop the tank?... After reading some of the posts maybe changing the pump isn't the answer -- any ideas.

#10 of 22 Re: thinking of changing fuel pump buick century 94 [cactusk] by jdh93

Nov 01, 2007 (6:36 pm)

Replying to: cactusk (Oct 12, 2007 10:02 am)
Iīm having some what similar problems with my 93 6 cyl. (See message #343). Anyone have suggestions??????????

#11 of 22 Re: thinking of changing fuel pump buick century 94 [jdh93] by jdh93

Nov 05, 2007 (8:42 am)

Replying to: jdh93 (Nov 01, 2007 6:36 pm)
have a 93 Century. About 3 weeks ago the already rusted out muffler and tail pipe fell off. It ran fine for another 2 weeks. About a week ago, it was completley dead. The starter was rebuilt and it ran fine for about 2 days. Then it began to often die right after it tarted. After various tries restarting it, it usually starts, but it releases a plume of smoke and then runs and idles very sluggishly. Sometimes it dies while I am driving. There is a strong smell of gas. This only happens about half the time. It often starts on the first crank and runs and idles smoothly. I have replaced all filters and treated the fuel system and the injectors. # mechanics have looked at it, but the problem never arose when they checked it. They hooked it up to the diagnostic computer, but it didnīt indicate a problem. I live in an area where there are no Buick dealers and where I donīt have a reliable mechanic.(I am new to the area.) Can anyone make ny suggestions as to what should be checked, what the problem sounds like or give me any advice in general??? Does it soundlike I need to have the exhaust system looked at? The car has only 70,000 miles on it. ( My grandmother bought it new) and it has been reliable for me up until now. Please help me if you can. Thanks.

#12 of 22 Fuel leak by nullsmurf

Nov 26, 2007 (11:03 am)

I had a coolant leak, a breach in the lower intake manifold gasket. To do the gasket, I disconnected supply and return side fuel couplings at the injector manifolds. As I reassembled, the return side went back together and sealed. The supply side did not. The coupling nut is tightend to its maximum, but the fuel line is "sloppy". Under pressure, it leaks badly. Did I neglect something - an o-ring?
 

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