Cars & Trucks Logo

Related Topics:

Andy Bishop Posted on Feb 04, 2013
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

91 buick lesabre chugging at idle and accelerating smooths out at speed

Ive done tune up checked coil pack resistance everything tested good no service engine light on tryed dry gas in the tank to see if it just had water in the gas, after i did the spark plug wires it stopped chugging for a few weeks now its doing it again and i dont wanna start replacing sensors cause there expensive and theres no return on them

1 Answer

raj somaiya

Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

  • Buick Master 5,370 Answers
  • Posted on Feb 04, 2013
raj somaiya
Buick Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Joined: Nov 12, 2010
Answers
5370
Questions
0
Helped
3570396
Points
14579

It can be issue with IAC( idle air control valve) causing the problem.


There are many other possibilities causing these idle issues. Engine idles rough.

There are few help links with solutions to troubleshoot such idle issues.

I suggest you refer the link below and follow its troubleshooting details:------

Click the link below:-----

Ford Expedition IAC valve replacing

http://technoanswers.blogspot.com/2012/12/ford-expedition-iac-valve-replacing.html

Bad miss at idle?

http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

-----------

Stumbling and stalling at idle after engine rebuild?

http://schematicsdiagram.blogspot.in/2012/03/stumbling-and-stalling-at-idle-after.html

------------

1999 Ford F-150 Idles rough and quits when gas pedal is pressed less?

http://technoanswers.blogspot.in/2012/01/1999-ford-f-150-idles-rough-and-quits.html

---------

Engine stumbles coming off idle when warm?

http://repairhelpcenter.blogspot.com/2012/01/engine-stumbles-coming-off-idle-when.html

------------------

Erratic idle on car?

http://schematicsdiagram.blogspot.com/2011/12/erratic-idle-on-car.html

-----------


Cold start problem and vehicle shudder around 2500 to 3500 rpms

http://repairhelpcenter.blogspot.com/2012/10/cold-start-problem-and-vehicle-shudder.html

----------

Low idle when cold out side?

http://repairhelpcenter.blogspot.com/2011/12/low-idle-when-cold-out-side.html

-----------

GMC Sonoma Stalls and idles low

http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html

--------


GMC Idle Air Control (IAC) Valve Replacing?

http://schematicsdiagram.blogspot.com/2011/12/gmc-idle-air-control-iac-valve.html

-------------

1996 Camry intermittent engine failure while idle?

http://repairhelpcenter.blogspot.com/2011/10/1996-camry-intermittent-engine-failure.html

------------

Engine quits at idle?

http://repairhelpcenter.blogspot.com/2011/10/engine-quits-at-idle.html

-----------

Car overheats and Air blows hot at idle?

http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html

---------

High Idle Problem

http://repairhelpcenter.blogspot.com/2012/10/high-idle-problem.html

-------

While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

---------

Idle flair is noticed on car? Rough idle? car will not idle? Erratic idle speed?

http://technoanswers.blogspot.in/2012/02/idle-flair-is-noticed-on-car-rough-idle.html

--------

High rpm in neutral? Inconsistant high RPM in neutral?

http://technoanswers.blogspot.in/2012/02/high-rpm-in-neutral-inconsistant-high.html

-------

Vehicle stumbling at idle and shows code 54?

http://schematicsdiagram.blogspot.in/2012/03/vehicle-stumbling-at-idle-and-shows.html

----------

Rough idle, staling and Erratic shifting?

http://technoanswers.blogspot.in/2012/03/rough-idlestaling-and-erratic-shifting.html

-----------

While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

---------

These details will help.

Thanks.

5 Related Answers

Anonymous

  • 360 Answers
  • Posted on Sep 26, 2008

SOURCE: No Start, No Spark, for Grand Caravan 3.8L

we get remans bad out of the box......... good luck

Ad

Anonymous

  • 8 Answers
  • Posted on Nov 03, 2008

SOURCE: coil pack keeps going bad,

Your problem sounds like an intermittent short in the power feed to the coil pack from the EEC module

Anonymous

  • 3 Answers
  • Posted on Jan 08, 2009

SOURCE: 2000 Hyundai Accent will suddenly stall and wont restart

Have someone check the idle sensor. I had to have mine replaced along with another that I don't remember which one is was.

Anonymous

  • 12 Answers
  • Posted on Mar 12, 2009

SOURCE: Check engine light comes on temporarily - engine chuggs at idle

Before changing you pcm try cleaning your egr valve. remove the valve and see if its stuck in the open position if so use a small pick to clean around the spring.

Oliver Street

  • 73 Answers
  • Posted on Mar 21, 2009

SOURCE: 91 LEGACY STARTED RUNNING ROUGH

The cylinders are numbered as on the spark pack you changed. You might have done better putting the seafoam in the tank as an injector cleaner. Not sure why you changed so many parts, you seem to know how to get the codes from test connector lead hookup and the blink pattern. You might also want to check the fuel rail pressure and the crank and cam angle sensors. Before replacing the injector, swap the #4 injector with the adjacent one and see it the code moves with the injector or stays put. If the code stays on #4, then check the injector wiring, if it moves clean or replace the injector.

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1helpful
2answers

My 1996 buick lesabre thumps when accelerating over around 50 mph, usually when entering the freeway. Already replaced all 3 coil packs, fuel, oil and air filters. Is it worth it to replace the spark

I would want to know where the noise is coming from first.
If you had a cylinder not firing, you should get a check engine light with a trouble code stored in the computer.
It could be something hitting the exhaust pipes, a weak motor mount, or any number of other things.
Does it feel like it involves the fact you are at that speed, or the fact the engine is working very hard ?
3helpful
3answers

1990 Buick Regal 3.1 has rough idle, hesitates and dies when accelerating.

A lot of new parts! Have a compression test done to gauge the engine's internal condition, and go from there. If compression is good on all 6 cylinders, scan for trouble codes. The compression test may find your problem, something like an exhaust valve burned or not seating properly.
0helpful
1answer

2005 Buick LeSabre missing badly

Is the check engine light on ? Do you own a scan tool ? not a code reader . Bad fuel or dirty fuel injector's .
069 Emission Tests Misfire Scan Data
1helpful
2answers

1997 buick lesabre will not start/turnover, battery is good and all lights and instrument cluster work fine, wiring to the starter good, starter and selenoid good, any suggestions

I know this sounds stupid but check the ground at the battery, ive had the same problem,everything worked exept the starter and it was from the battery ground being loose
0helpful
1answer

Rough idle rough acceleration

I just had this problem, check the secondary resistance across the spark plus terminals on each coil. We had 0 resistance on the top coil in the pack, replaced with a good one and all was fine.
0helpful
1answer

I have a 91 buick lesabre and it jerks and drives rough at excess speeds of 45, the engine light comes on and i have replaced the coil pack and module, plugs wires and alternator, and throttle sensor, but...

could it possible be the o2 sensor check them out, they could clogging, and give the fuel injectors not enough of a pulse to get enough gas out for the ammount of o2
0helpful
2answers

No acceleration,audi 1.8t,runs like no boost

have you tried cleaning out the throttle body as i had a similar problem and this worked
0helpful
2answers

Buick Lesabre 1998, How you check the coil packs?

you can take them off and have them tested or you can pull the plugs and there should be two plugs that will be really black follow those wires back to the coil that is bad. or you could also have someone crank it while you stick a screwdriver in the end of the wire on the plug and hold the screwdriver next to the engine or a good ground and there should be a bright blue spark but be careful and dont touch the car or it might tickle a little bit
Not finding what you are looking for?

1,553 views

Ask a Question

Usually answered in minutes!

Top Buick Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

Brad Brown

Level 3 Expert

19187 Answers

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

Answer questions

Manuals & User Guides

Loading...