Question about 1998 Buick Century

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I'm looking for the vacuum hose diagram for a 1998 Buick Century Custom, 3100 V6.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: how do I change the fuel filter in a 1999 Buick Century Custom?

Philly, the fuel filter is attached to the frame in front of the gas tank, under the driver side of the car. You must relieve the pressure in the fuel line before you start, and it is also recommended that you disconnect the neg. battery cable. After disconnecting the neg. cable, remove the gas cap. Next, look under the hood on the fuel rail for a shrader valve (like the type on a bicycle tire). Place a rag under the valve, remove the cap, and press the valve in with a plastic pen to relieve the pressure in the line. You can now go under the car to remove the filter. You can disconnect the fuel lines easily with an inexpensive plastic disk made for this purpose (only a few $ for several sizes at a parts store). Be careful of fuel in the line that will drain out, no smoking or sparks during this procedure. Should be 1 bolt securing filter to frame. Note arrow on new filter, and install in the correct direction. Replace cap on shrader valve, put gas cap back on, reconnect battery cable. The low coolant light is probably a faulty sensor signaling that it's low, when it's actually ok. Look for wires coming from the reservoir bottle, you should be able to find the sensor at the end of the wires to replace it. If you change the fuel filter in a garage, leave the door open for air circulation, gas fumes can explode easily, having the door open will help dissipate the fumes.

Posted on Apr 05, 2009

  • 272 Answers

SOURCE: Need to know roughly how long it would take to

Depends on your level of experience, quality of your tools and whether or not you have any frozen head bolts. The valve assembly and head come off as one unit on those. To clear the wires, emmision controls ect off of the top of the valve cover 30 minutes. remove valve cover 5 minutes (too scrape off excess gasket material. to remove exhaust manifold from side of head, (assuming no broken/stuck/stripped bolts 15 minutes with good hydraulic tools. To remove head (assuming all goes well and hydraulic tools, 15 minutes. To reassemble, double all times as surfaces need to be prepped and gaskets applied and proper torque on all bolts. It's an afternoon job if you ahve everything you need and nothing goes wrong. Typically add at least two or three hours of drilling and cursing to a head gasket replacement. and a trip for new drill bits and a tap (not beer) for the new hole you drilled.

Posted on May 13, 2009

  • 2 Answers

SOURCE: VACUUM HOSE DIAGRAM FOR 1987 BUICK REGAL GRAND NATIONAL

sign up at turbobuick.com (it's free) then find out who lives near you and check out their car...take some pictures and notes...btw there are a ton of members and I'm willing to bet someone lives near you and most are more than willing to help out a fellow turbo buick owner..or try the link at the bottom...any problems shoot me an email at Mansfieldroof@aol.com

http://www.installationinstructions.com/vin9/vacuum%20hose%20system.pdf

Posted on Jun 16, 2009

ZJLimited
  • 17970 Answers

SOURCE: where do I find a diagram of the fuse boxes in a

Visit gmownercenter_buick (1993-present. Must have a Yahoo ID to log in.) for acces to the Owners Manual.

Good luck (remember rated this help).

Posted on Mar 13, 2010

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SOURCE: ford taurus v6 duratec vacuum hose diagram

under the hood is a vacum diagram

Posted on Apr 16, 2010

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Need firing order for a 1998 buick ,c., entury,,


Actually that one I remember because it goes in order. 1,2,3,4,5,6

1,3,5 are in the rear and 2,4,6 are in the front.

I hope that helps.

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Where is low side port to connect charge kit on a 1998 Buick Century Custom? Also, to be sure what type of refrigerant should be used? (R-134a) or different Thank You, Brandon


1998 Buick Century is factory-equipped with R134a refrigerent.

As for the service port, you just have to look for it. Not even the factory service manual will tell you exactly where it is located. It will be either on the accumulator itself or in the low pressure line between the accumulator and the compressor. (see diagram)

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High idle 1998 buick century after changing thermostat hooked it up to a dionostic computer and shot a couple codes still no luck


The codes might have been handy to have but I would be looking for a vacuum hose that was damaged or inadvertently detached. Losing vacuum will cause a high idle.

Jun 24, 2011 | 1998 Buick Century

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1999 buick century-3100 v6 -obd code 302 comes on and off for about 6 months-then 2 weeks ago code 300 came on and no more 302.now today no more 300 but code 304.all code come on and go oof for a day or...


Is there raw fuel coming out of the hose or regulator . These regulators have a diaphram inside that rots and leaks , Causes rich condition . Can cause misfire codes , rough running .

May 17, 2017 | 1999 Buick Century

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1993 buick century 3.3 transmission modulator help


it is located on the side of the transmission case, it has a vacuum hose going to it, make sure that hose is good and has vacuum from the engine going to the modulator, here is a picture of the modulator so u can ID it.

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Jul 21, 2010 | 1993 Buick Century

1 Answer

I have a 1998 buick century limtied


I would suggest buying a Haynes/Chilton book for both models, they may even be one in the same if the years are close enough. Look up the schematics for both and compare the differences circuit by circuit. There may be some slight differences with connection fittings, but thoroughly review the schematic diagrams first.

Apr 19, 2009 | 1998 Buick Century

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