Buick

Buick Repair Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Gas cap light comes on, i reset it, but the service engine…

Customer Question
Gas cap light comes...

Gas cap light comes on , i reset it, but the service engine soon never goes out

Mechanic's Assistant: Have you checked the gas cap for cracks? Have you checked the fuse?

I havected the battery for awhile, that that hasn't helped

Mechanic's Assistant: What is the model/year of your Buick?

2005 la sabre i haver a brand new cap on it

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

New cap, , disconnecting the batter\y , which should reset everything

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I do it myself, have have worked on them for over 40 years, all different makes and models, plus alot of european vehicles

Submitted: 7 months ago.Category: Buick
Show More
Show Less
Ask Your Own Buick Question
Answered in 15 minutes by:
12/2/2017
Buick Mechanic: Robert R, ASE Certified Tech replied 7 months ago
Robert R
Robert R, ASE Certified Tech
Category: Buick
Satisfied Customers: 4,795
Experience: 28 years experience, ASE Certified Technician
Verified

Hello, welcome and thanks for asking your question. My name is*****'m a Certified Auto Technician with 30+ years experience. I will do my best to assist you. please keep in mind that I may need to ask questions of you before I can answer. When you reply please feel free to add as much detailed information as possible pertaining to your concern.

The best thing to do at this point is to scan for the "Diagnostic Trouble Codes" (DTC's) from the onboard computers. The DTC's are used as the Starting Point for diagnosis. They let you know which system(s) the fault is in. This information is of great value for correct diagnosis. As a Technician, my first course of action is normally to scan for the DTC's. If you can obtain these codes, we can more accurately and efficiently diagnose the problem. You can have these Codes read for FREE at your local auto part store (AutoZone, O'Reileys, Advanced, etc.). If you post these Diagnostic Trouble Codes here, I can obtain the most accurate information to help you diagnose the Concern, and then point you towards the correct repair.

Post the codes here and I will let you know what to do next...

Keep me posted...

Thank you,

Robert

Ask Your Own Buick Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a buick mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Dave Nova Your Own Question
Dave Nova
Dave Nova
Dave Nova, Buick Technician
Category: Buick
Satisfied Customers: 1,808
1,808 Satisfied Customers
Experience: ASE Master Certification. GM World Class Certification

Dave Nova is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Dave Nova

Dave Nova

Buick Technician

1,808 satisfied customers

ASE Master Certification. GM World Class Certification

Gary

Gary

Buick Technician

1,541 satisfied customers

15 years master GM tech and mater ASE tech

John

John

Buick Master Technician

731 satisfied customers

ASE A1-A8 w/L1 GM master technician.Factory certified with 40 years experience.

George H.

George H.

ASE Certified Technician

536 satisfied customers

ASE Master 15+years

Don - Mo Lurch

Don - Mo Lurch

Buick Mechanic

535 satisfied customers

GM, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.

Ron Z.

Ron Z.

- Buick Tech -

497 satisfied customers

18+yrs experience. State Inspector and Buick Diagnostics

Chris (aka- Moose)

Chris (aka- Moose)

Buick Technician

378 satisfied customers

16 years of experience

< Previous | Next >

Related Buick Questions
Evap blockage code. Replaced the purge valve and the gas
Evap blockage code. Replaced the purge valve and the gas cap. Even Blew out the evap lines. Service engine light is still on. … read more
Gary
Gary
Buick Technician
Vocational, Technical or Trade Scho
1,541 satisfied customers
Buick regal supercharged gs: 1999 buick regal supercharged
1999 buick regal supercharged gs - I have an intermittent problem with my driver information center only on the range setting. When I turn on the ignition, the display says the range is low and the od… read more
cloe0626
cloe0626
800 satisfied customers
Buick LeSabre Custom: The battery in my 2000 Buick Le Sabre
The battery in my 2000 Buick Le Sabre drains down over night. With everything off and the key removed I first checked for voltage across all the fuses in both fuse boxes (under rear seat and under hoo… read more
zzdaryl
zzdaryl
Lead Auto Tech
Some college and advanced training
4 satisfied customers
97 Buick Skylark: my driveway..new fuel pump put in, oil filter
I have a 97 Buick Skylark. It was sitting in my driveway for about 1-1/2 years as when I started it it died out. I had a new fuel pump put in, oil filter and it started and ran for a day. I got back i… read more
rpmdiag
rpmdiag
High school
7,743 satisfied customers
2004 Buick: with about 85,000 miles..weather..my gas gauge didnt work
RE - 2004 Buick La Sabre with about 85,000 miles. Recently just as an unusual, weather freeze hit Nashville, Tennessee, I noticed that my gas gauge didn't work. (The needle would sit mostly on empty, … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
2005 buick rendezvous: gas cap light..my gas..tightening..more gas
I have a 2005 buick rendevous the gas cap light is on and wont shut off I guess the last time I pumped my gas I left the cap loose how do I shut it off? I already tried tightening the cap I also went … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
2006 buick rendezvous: gas cap..tank..check engine soon..light goes on
I have a 2006 Buick Rendezvou. The "open gas cap" light has come on --- even though I have adequate fuel in the tank, & I have checked to be sure that the cap is on properly. Also, at times the "check… read more
Gm Tech (Cam)
Gm Tech (Cam)
Owner/Technician
Vocational, Technical or Trade Scho
6 satisfied customers
1987 Buick: runing..road..idle control..rich so whit do you think it
Hi thank's I have a 1987 Buick La Sabre it was not runing very well need plugs and wires to old to check my cood reader it well not set and idle and if you drive it down the road and take your foot of… read more
Dave Nova
Dave Nova
Buick Technician
1,808 satisfied customers
engine light..other day when I left the cover off the gas cap
How do I reset the engine light. It came on the other day when I left the cover off the gas cap. Now the cap is on good, and it's still on. I'd like to reset it without having to go to a dealer and pa… read more
cartech
cartech
master tech
High School or GED
1,797 satisfied customers
Buick: Check-engine keeps coming on.98..gas cap plenty..sensors
Check-engine keeps coming on. 98 Buick La Sabre -- 3800 eng. First time, mechanic put his code detector on, (said problem was VGA or VGR (not sure) - but said it was not a serious problem but first ch… read more
carguyjosh
carguyjosh
Associate Degree
1,120 satisfied customers
reads..new upper intake plus a air flow sensor installed
the sensor reads loose gas cap. i recently had a new upper intake plus a air flow sensor installed. After this the loose gas cap sensor started. I replaced the gas cap and had the computer reset but t… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
94 buick lesabre: s Service engine light..#4 cylindar is not firing
My 94 Buick LaSabre's Service engine light is on. The #4 cylindar is not firing but is gassing up the spark plug. The plugs are new and I have switched plugs with the #4 cylindar to rule out a bad plu… read more
Lil Hammer
Lil Hammer
Master technician/state inspector
High School or GED
170 satisfied customers
2005 Buick lesabre custom: Vibration..steering wheel..tires..rotors
2005 Buick LaSabre Custom. Vibration felt in steering wheel and floor when speed is 65mph or higher. Replaced tires (2 sets), wheels (1 brand new set), left drivershaft, new front and back rotors and … read more
Gary
Gary
Buick Technician
Vocational, Technical or Trade Scho
1,541 satisfied customers
service engine soon light comes..new one..disconnected
What causes the message to read "Gas cap loose, check gas cap" and at the same time, the "service engine soon" light comes on, on the dash? I have replaced gas cap with a new one and disconnected the … read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
92 buick: Have passenger door panel..old man sliding across seat
can't get driver door open on 92 buick la sabre don't hear electric lock working on driver door . Have passenger door panel off just can't figure it out. Need the door open because of hurting this old… read more
marcpod
marcpod
Own collision repair service
Vocational, Technical or Trade Scho
1,185 satisfied customers
1992 buick: le..sabre..the service car light turns off
1992 buick le sabre: please, where is the reset button, so the service car light turns off. Thank you… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
hwy at 70 mpr and only getting 23.8 miles per gallon..tire pressure
Just purchased a 2007 LaCross last Saturday, and am driving primarily on the Hwy at 70 MPR and only getting 23.8 miles per gallon. It has a little over 30,000 miles on it and tire pressure is ok. Oil … read more
Gm Tech (Cam)
Gm Tech (Cam)
Owner/Technician
Vocational, Technical or Trade Scho
6 satisfied customers
1996 Buick Regal: 10 miles..40 miles..accelerated..car ride got bumpy
I put half a tank of gas in my 1996 Buick Regal (86000 miles). About 10 miles later, when I was going about 40 miles an hour, I accelerated a bit and the car ride got bumpy like I'd run over big rocks… read more
zzdaryl
zzdaryl
Lead Auto Tech
Some college and advanced training
4 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x