Buick

Buick Repair Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Buick

I have had a bunch of codes starting with p0330 replaced one…

Customer Question
I have had a...

I have had a bunch of codes starting with p0330 replaced one code swap out for a po103 ended up replacing it twice and the electical conector no change started reading buick forums and the map sensor had played a part in several other peoples situations so I replaced that no change then one day it goes back to p0330 Chang the other sensor and conector codes gone great until this morning it's been about 3 days since last gotten a code it's about 43 degrees out side got to start it spit and sputter gave it some gas to try and get it running eventually runs normal check engine light is on again check the code p0171 and p0174 I love this vehicle I don't love the problems I am having with it I have read the service notes from gm and it suggests that it's a fuel injector can't help and wonder if the vehicles computer is on the fritz I rely on the vehicle to transport my 4 kids around we live in North Dakota winter is just around the corner it's an hour drive to get to a dealership need to get this fixed like now I have only had it 4mo

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

08 enclave cxl fwd

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

Yes map sensor mass air flow sensor twice with the conector and both knock sensors and one conector

Mechanic's Assistant: Does the engine stall right after starting? And what about hesitation or jerking during acceleration?

No only today it tryed to jerks and has slight hesitation

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

Not that comes to mind

Submitted: 4 months ago.Category: Buick
Show More
Show Less
Ask Your Own Buick Question
Customer reply replied 4 months ago
I am also getting a service traction control message now as well
Answered in 19 minutes by:
10/16/2017
Buick Mechanic: david craig, ASE Certified Technician replied 4 months ago
david craig
david craig, ASE Certified Technician
Category: Buick
Satisfied Customers: 4,744
Experience: owner/mechanic at 3D Automotive
Verified

Hi Im David, thanks for visiting the site. replace the plugs, have a back pressure test done then have a fuel pressure test done. the way its acting and randoly throwing different codes is going to require those tests.

Ask Your Own Buick Question
Customer reply replied 4 months ago
What will a back pressure test show
Buick Mechanic: david craig, ASE Certified Technician replied 4 months ago

clogged catalyitc converters

Ask Your Own Buick Question
Buick Mechanic: david craig, ASE Certified Technician replied 4 months ago

which will cause all kind of driveabilty issues

Ask Your Own Buick Question
Customer reply replied 4 months ago
How likely is it that this is causing all these codes
Buick Mechanic: david craig, ASE Certified Technician replied 4 months ago

if the cats are clogged or bad it very likely. but wont know until they are checked.

Ask Your Own Buick Question
Customer reply replied 4 months ago
I may have replaced all those sensors for nothing. If those test come out ok what next
Buick Mechanic: david craig, ASE Certified Technician replied 4 months ago

I dont jump ahead. and, none of those sensors should have been replaced unless they were tested and failed the test.

Ask Your Own Buick Question
Customer reply replied 4 months ago
Ok well I guess we will work on getting these test done
Buick Mechanic: david craig, ASE Certified Technician replied 4 months ago

and please let me know the results. fuel pressure should be 55-60 with the key on. engine off. backpressure test gauge should be steady and not go over 1 at idle and at 2500 rpm

Ask Your Own Buick Question
Buick Mechanic: david craig, ASE Certified Technician replied 4 months ago

hows it going?

Ask Your Own Buick Question
Customer reply replied 4 months ago
Well haven't gotten it into the shop yet we live in nw north Dakota every shop is booked 2wks out at the minimum still have the same issues / codes pulled the front 3 plugs just to check them they have an old gas smell to them think they are the original plugs will try to get it in at Another shop on fri.
Buick Mechanic: david craig, ASE Certified Technician replied 4 months ago

ok, thank you for the update

Ask Your Own Buick Question
Customer reply replied 4 months ago
i was able to get these readings from the scan tool i have for when it threw the code p0174 & p0171 it stays plugged in and monitors the vehicle not sure if any of this helps vehicle was cold sat over night first start of the dayCommanded throttle actuator: 16.86 %
Accelerator pedal position E: 11.76 %
Accelerator pedal position D: 23.14 %
Absolute throttle position B: 25.49 %
Ambient air temperature: 62.6 F
Relative throttle position: 11.37 %
Fuel–Air commanded equivalence ratio: 12850.2
Absolute load value: 14.12 %
Control module voltage: 14.791 V
Catalyst Temperature: Bank 2, Sensor 1: 1184.0 F
Catalyst Temperature: Bank 1, Sensor 1: 1225.4 F
Absolute Barometric Pressure: 91 kPa
Evap. System Vapor Pressure: -529.75 Pa
Distance traveled since codes cleared: 37.88 mi
Warm-ups since codes cleared: 6
Fuel Tank Level Input: 20.4 %
Commanded evaporative purge: 24.7 %
Run time since engine start: 161 s
Throttle position: 25.5 %
MAF air flow rate: 7.23 g/s
Intake air temperature: 91.4 F
Timing advance: 32.5 degrees
Vehicle speed: 27.32 mph
Engine RPM: 1413.25 rpm
Intake manifold absolute pressure: 32 kPa
Long term fuel trim—Bank 2: 24.22 %
Short term fuel trim—Bank 2: 10.16 %
Long term fuel trim—Bank 1: 24.22 %
Short term fuel trim—Bank 1: 2.34 %
Engine coolant temperature: 168.8 F
Calculated engine load: 21.6 %
Buick Mechanic: david craig, ASE Certified Technician replied 4 months ago

LTFT"S are too high and Bank 2 STFT is too high. I dont like the Timing advance either.

Ask Your Own Buick Question
Buick Mechanic: david craig, ASE Certified Technician replied 4 months ago

this is going to have to be hands on. I will open this up to the other techs to chime in. please don't reply back or it will take the question off the board.

Ask Your Own Buick Question
Was this answer helpful?
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

1,499 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

531 satisfied customers

ASE Master 15+years

Don - Mo Lurch

Don - Mo Lurch

Buick Mechanic

519 satisfied customers

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

Ron Z.

Ron Z.

- Buick Tech -

474 satisfied customers

18+yrs experience. State Inspector and Buick Diagnostics

Chris (aka- Moose)

Chris (aka- Moose)

Buick Technician

316 satisfied customers

16 years of experience

< Previous | Next >

Related Buick Questions
Volt light came on and now car will not start and can't be
Volt light came on and now car will not start and can't be jumped … read more
Mechanic01
Mechanic01
2,019 satisfied customers
1999 Century airbags deployed in a small crash (hood and
1999 Century airbags deployed in a small crash (hood and front bumper damage only). Airbags have been replaced but battery not reconnected. Is there a front crash sensor that needs to be replaced or d… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
2004 buick rendevous sunroof stick open. Stuck. Havent tried
2004 buick rendevous sunroof stick open JA: Are you fixing your Rendezvous yourself? What have you tried so far? Customer: Stuck JA: Anything else you want the mechanic to know before I connect you? C… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,672 satisfied customers
Looking for Airbag crash sensor 1999 buick century
Looking for Airbag crash sensor 1999 buick century … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
On my 2004 Buick park ave. drifts to the right. we replaced
on my 2004 Buick park ave. drifts to the right. we replaced both lower control arms and , the right caster is still negative How do you change the right caster? … read more
Randall
Randall
Auto Technician / Consultant
Vocational, Technical or Trade Scho
69 satisfied customers
When I hit the engine start/stop button, it says" shift to
When I hit the engine start/stop button, it says " shift to park". Meanwhile I just did that … read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
1,038 satisfied customers
My antilock brake light and engine light are on. About to
My antilock brake light and engine light are on. About to read what's here on this site. Thanks. … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
Won't crank over won't even click gages for battery and
Won't crank over won't even click gages for battery and others doesn't read anything door locks don't work or windows car won't start reading service airbag and tire pressure faults … read more
Larry Schmidt
Larry Schmidt
8 satisfied customers
My key is stuck in the ignition. I can turn the steering
Yes I can turn the steering wheel and I just had the key made yesterday … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,672 satisfied customers
Guages not working, traction control light on, code u1000.
guages not working , traction control light on, code u1000 … read more
david craig
david craig
ASE Certified Technician
4,744 satisfied customers
I need to remove old ash tray assembly and replace it. Cigar
I need to remove old ash tray assembly and replace it. Cigar lighters are not working, one is even out. … read more
david craig
david craig
ASE Certified Technician
4,744 satisfied customers
The speedometer is not working. Hasn't worked for a while.
Hi, the speedometer is not working. Hasn't worked for a while. The odometer seems fine, cruise control works, the temp and rpm work fine. Sometimes the gas goes a little haywire and reaches all the wa… read more
Chris (aka- Moose)
Chris (aka- Moose)
Buick Technician
Vocational, Technical or Trade School
316 satisfied customers
My problem is intermittent, unwanted opening of trunk as
My problem is intermittent, unwanted opening of trunk as described in PI0185C. It only occurs when damp or rainy. I am assuming it is due to moisture within the exterior release switch. Would this be … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
The front passenger door will not unlock. at times it will
the front passenger door will not unlock. at times it will work then stop working for 2 to 3 weeks at a time. pulled the door panel off, tried to fix it but don't know what to look for … read more
Mechanic01
Mechanic01
2,019 satisfied customers
1997 Buick Lesabre Custom. I'm having trouble diagnosing and
1997 Buick Lesabre Custom. I'm having trouble diagnosing and am looking for what I should test next. I'll try to be succinct as possible.This is a sidenote but may also be relevant: about a year ago I… read more
roy
roy
Associate Degree
3 satisfied customers
When I start out from stop light engine miss for about 4or5
When I start out from stop light engine miss for about 4or5 sec. and then traction control light come on? … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
I have a 2012 Buick Lacrosse. Car won't start, Battery dies,
I have a 2012 Buick Lacrosse. Car won't start, Battery dies, radio stays on, several service messages appear such as service AFL lamp, service airbag, and several others. there is no info for gas, mph… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,672 satisfied customers
Replaced bad fuel pressure regulator and vapor purge
Replaced bad fuel pressure regulator and vapor purge canister hose/harness. Fuel pump seems fine, alternator, starter, battery all fine. What could it be?… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 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