Question about 1997 Buick LeSabre

1 Answer

97 Lesabre misfire

Im working on a 97 Lesabre with the 3800. The first time i scanned it it was missing on 3 and not on any others....swapped wires with 6 and 3 ... still missed on 3. Put new plug in 3 the next day and rescanned car and now shows miss on 6 only. The wire was what looked to me to be arcd damaged ( it was black and sooty) where the plug goes to coil pack. So now focused on 6. Swapped 6 and 2 and now misses on both 6 and 2. When I swap the wires back it goes back to missing on 6 only. Any ideas why it sent me to 3 first? I plan to try a new wire on 6 and inspect the plug next.

Posted by on

  • joey  shearer
    joey shearer Jul 19, 2009

    Update to issue. The problem was the loose wire connection on coil causing the visible arc damage which made the wire and also made the coil pack fail. This is why when switching only the wires and then only the packs didnt make problem follow. New 3 6 coil pack and new #6 wire car runs great.


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.


    An expert that has over 500 points.

  • Expert
  • 148 Answers

Change all plugs an wires if you still get the misfire on #3or#6 the coil pack is parabley bad

Posted on Jul 17, 2009

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

3 Answers

Replaced coil pack on 3800 pontiac bonneville and its still missing what now?

First you need to determine what type of miss you have. Is it random on all cylinders, or is it restricted to one or two cylinders? Random misfire can be caused by crank or cam sensors that are starting to give out. Single cylinder misfires can be due to plugs, wires, coils (you already addressed those), as well as internal issues such as burnt or broken valves.

Oct 23, 2015 | 2000 Pontiac Bonneville

1 Answer

97 ford taurus: Cylinder 2 misfire

well..fuel injection systems are more than the electronic part. I suspect you are dealing with compression or injector fouling issues..

Oct 21, 2008 | 1997 Ford Taurus

1 Answer

Buick engine swap,94 3800 motor into 97 lesabre ,is it compatable?

Well there are several 3.8 liter engines 8th digit in the vin tells it all Vin3,C,K,L are all different is small settle ways the most is ignition electronics Vin 3 engines only use the inner sensor ring on crank pulley Vin 3, c,k,l use both sensor rings but they are different also Changing the pulley is not recommended due to balance issues but the sensor rings are bolted on with sheer bolts that can be removed. Intake manifold design is the second most important plastic 2 piece and metal one piece are not inter change able.

Apr 25, 2014 | 1997 Buick LeSabre

1 Answer

2003 Buick 3800 engine 82,000 actual miles on it multiple/random misfire code How it started.. Car was running fine. Check engine light started flashing and engine started missing. What...

You can't rule anything out yet. It could be a plug or injector among other things, but probably not low fuel pressure. If you have a code 300 and nothing else, you may have to wait until the problem gets bad enough to set additional codes. And if any of the sensors fail, such as the cam or crank sensors, you'll get a code for those to be tested.
Have the plugs been checked or replaced in the past 30,000 miles ?

Mar 12, 2014 | 2003 Buick LeSabre

1 Answer

97 chevy tahoe running rough update....

code P0303 is a misfire code for cylinder # 3, Possible spark plug, wire/coil or injector problem. P0141, bank1 sensor2, is the upstream oxygen sensor, this code may have been set by the misfire of Cyl #3, the lean condition is being cause by the misfire. Fix the misfire and clear the codes and P0141 should not return. If the vehicle is equipped with Coil over plug system try swapping the coil with any one of the others, test drive and if the misfire code changes to another P0300 code ( P0301, P0302, P0304 etc...) the coil has failed and will need to be replaced.

Jan 23, 2014 | 1997 Chevrolet Tahoe

3 Answers

Have a missing on 08 f150 4.6 went to auto zone and got a code reading and it said probable cause is a sludge throttle body/air flow got cleaner for it and clean throttle body but it still misses some one...

it is possible for it to be a coil, the thing with fords are that it takes alot of time for the misfire counter to turn the check engine light on and at the smae time set a code for missfire, if you have a code reader available check to set if there is a po301-po302 -po303,and so on the p is for power tran the o is that it is a generic code 3 indicateds misfire, 01,02 indicate which cly. is misfiring , alot of time you have to drive the fords for awhile before it will set a misfire code. if you have a good scan tool you can go to mode 6 and check misfire counters for which cly. is missing. than you can check compression in that cly, chec coil and plug.

Oct 30, 2013 | Cars & Trucks

1 Answer

Multiple cyl misfire

please check on compression of all the cylinders. IF there is any valve damage this could cause a fault.Please check this out if your fuel and spark are ok.

Jun 28, 2010 | 2002 Chevrolet Camaro

1 Answer

Im working with a 2006 mini cooper and engine light comes w po304 code the car runs fine no misfire at all,plugs r new

Code P0304 Indicates a misfire in cylinder 4. The computer will notice these long before they get bad enough for the driver to notice. Check your plugs and plug wires for thightness. I know from expierence that "New" parts does not mean "Good" parts.

If you have access to a scan tool still.... swap the #1 and #4 plugs and if you still get a P0304 reading you know the misfire is likely in the #4 cyl. wiring. (A faulty injector could cause a misfire but it's less likely a culprit than the wiring)
If you get P0301 code after you swap the plugs.. then you'll know it's a faulty plug.

sorry for the long winded advice.

May 19, 2010 | 2006 Mini Cooper

2 Answers

2001 ford taurus p0301 and p0303

You are mis fireing on cyl 1 and 3 if you replaced plugs and wires and coil this is going to be a fuel injector issue or valve issue. See if you can swap the injectors with known good cyl. and see if it changes. Or have a shop do a fuel injector service on it to see if it helps. It may be to late for the fuel injector service.

Mar 01, 2009 | 2001 Ford Taurus

Not finding what you are looking for?
1997 Buick LeSabre Logo

Related Topics:

388 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts


Level 3 Expert

75817 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8180 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides