Question about 1988 Buick Century

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I have a 1988 Buick Century Custom with the 3.8 Liter V-6. It idles rough. Plugs are good Ing wires good. Any suggestions?

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Check the wires for a good connection at the cap and plug, check the rotor and cap for condition and also look for a loose or broken vacuum line.

Posted on May 30, 2010

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Posted on Jan 02, 2017

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88 buick century custom stalls when starting from a stopped position. It sometimes idles high as well. Any suggestions?


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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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Firing order on 1988 buick regal custom coil pack with firing order 123456


1988 Buick Regal 2.8 liter V-6 VIN "W"

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Hope helps (remember to rate and comment this).

Sep 13, 2010 | 1988 Buick Regal

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Nee diagram for spark plug wiring


2002 Buick Century
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May 23, 2010 | 2002 Buick Century

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Rough idle


Check the firing order.
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Dec 13, 2009 | 1992 Buick Century

1 Answer

1995 buick skylark custom ran great now it chugs and acts like a spark plug isnt firing. runs rough and chugs at low speed under 35mph. rough idle.what would cause this?


start by checking the plugs, then see if you got spark at all the plugs, check for vacuum leaks, worn wiring, fuel pressure,

Nov 23, 2009 | 1995 Buick Skylark

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Can somebody show or tell me the firing order for 1988 buick park ave.and a wiring diagram for the ignition mod.


1988 Buick Electra Park Avenue 3.8 liter V-6 VIN "3"
Identifying Ignition Types I and II


On Type I coil packs, three twin tower ignition coils are combined into a single coil pack unit

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On Type II coil packs, the coils can be replaced separatelyand the ignition wires are all on the same side of the coil pack.
With Type I Ignition


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With Type II Ignition

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or...

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Good luck.

Oct 05, 2009 | 1989 Buick Park Avenue

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What is the firing order for 1988 Buick Century 6cyl


The firing order for a 4-cylinder 2.2L Buick Century is: 1-3-4-2. The distributor rotates in a clockwise direction, with #1 plug wire located at the upper left of the distributor The firing order on a 3.1 v6 is simple. 1-2-3-4-5-6 See a diagram of the 3.1 and 3.8 here. http://www.2carpros.com/forum/1999-buick-century-spark-plug-firing-order-vt177159.html http://autorepair.about.com/od/enginefiringorders1/

Jun 11, 2009 | 1988 Buick Century

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