1994 Buick Lesabre misfiring

Asked by Mar 14, 2016 at 07:02 PM about the 1994 Buick LeSabre

Question type: Maintenance & Repair

I have a 1994 Lesabre with the 3.8.  The car is currently running on 4
clyinders, (5, and 6 are not operating properly), I say not properly, becasue
we have replaced, and tested the ignition module, the coil packs, and all
are firing at the pack, wire, and plug. we tested the injectors, and they are
firing, also tested compression, good on all cylinders.  We are also
experiencing a battery drain. It seems to be pointing to an ECM, had the
engine codes read, only getting midfire code. Any other ideas?

3 Answers

1,700

Maybe to simple but are u sure plugs are firing properly? Few bucks to replace and try, jus a thought.

We first inspected the plugs, then cleaned them, then replaced them. They are firing, but when the wires are removed, the car runs exactly the same...just on 5, and 6.

92,535

Check the crankshaft position sensor for proper clearance and also the connector and wiring, look for any chaffing. You might want check the crankshaft pulse ring right behind the crank pulley, if some of the pulse tabs are broken or damaged that cylinder will not fire.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Misfire 3 answers

    My 01 Buick Lesabre is acting up .. When I first cut it on , it will cut right back off, I would have to try to start it 3times then when it's finally on , it will jump and hesitate why still in p...

    2001 Buick LeSabre Custom

    -

    Maintenance & Repair

  • Where can I find the computer on a 1989 Buick LeSabre? 47 answers

    I have a 1989 Buick LeSabre that stalls out while in motion. Seems to happen when a part gets too hot. After sitting for awhile, I can drive for awhile again. Assume it is the Computer or the Catalyt...

    1989 Buick LeSabre

    -

    Maintenance & Repair

  • Misfire 1 answer

    Car misfire change coil packs n sprark plugs n wires still misfiring what else can it be

    2000 Buick LeSabre Custom

    -

    Maintenance & Repair

  • Buick lesabre won't start

    We pulled the fuel rail and replaced injector. Car still ran rough like injector one was the old injector. We know the misfire is on one because we put it on a computer. So we pulled the hot wires...

    2004 Buick LeSabre Limited

    -

    Maintenance & Repair

  • About buick 1 answer

    I have a 2004 buick lesabre it starts to shake a little sometimes and sometimes it acts as if it wants to jump a gear the car is very well kept up on abut it even cuts off some but when does the ba...

    Buick

    -

    Maintenance & Repair

LeSabre

Looking for a Used LeSabre in your area?

CarGurus has 1,930 nationwide LeSabre listings starting at $995.

ZIP:

Search Buick LeSabre Questions

Buick LeSabre Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,080
#2 John Saffrahn
John Saffrahn
Reputation 1,760
#3 Austin Gaboda
Austin Gaboda
Reputation 1,410
View All

Related Models For Sale

Used Buick Park Avenue
445 listings starting at $4,991
Used Buick Regal
108 Great Deals out of 10,814 listings starting at $3,995
Used Chevrolet Impala
581 Great Deals out of 31,643 listings starting at $799
Used Buick Century
840 listings starting at $3,140
Used Cadillac DeVille
6 Great Deals out of 1,645 listings starting at $1,999
Used Honda Accord
809 Great Deals out of 85,771 listings starting at $988
Used Toyota Camry
992 Great Deals out of 90,855 listings starting at $700
Used Mercury Grand Marquis
30 Great Deals out of 1,827 listings starting at $2,250
Used Ford Taurus
231 Great Deals out of 20,444 listings starting at $661
Used Ford F-150
2,240 Great Deals out of 205,781 listings starting at $1,499

Used Cars For Sale

2005 Buick LeSabre For Sale
11 Great Deals out of 320 listings starting at $995
2004 Buick LeSabre For Sale
4 Great Deals out of 317 listings starting at $1,588

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.