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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
Oh , we recently inherited my dad's 2000 buick park avenue,
Oh hello, we recently inherited my dad's 2000 buick park avenue, and there was a scribbled note that said that there were 5 repairs that I could only partially read. Now the service engine soon light … read more
Gary
Gary
Buick Technician
Vocational, Technical or Trade Scho
1,541 satisfied customers
GM Buick Lesabre: Well I have a 2000 buick lesabre 3800 engine
Well I have a 2000 buick lesabre 3800 engine and at times it would run fine then all of the sudden it would start running terrible like it was running on 3 cylinders or had a dead miss, so I took it t… read more
Roy
Roy
shop foreman
Associate Degree
4,528 satisfied customers
Buick Enclave: I have a 2008 Buick Enclave and the Check Engine
I have a 2008 Buick Enclave and the Check Engine light comes on for a day ro so and tehn goes off (assumingly after the sytem test). The car runs really well no issues at all. ANy thoughts to what it … read more
Gary
Gary
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Vocational, Technical or Trade Scho
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Buick Rendezvous CXL: I had a pending code p0455 and the gas
I had a pending code p0455 and the gas cap light come on on my05 buick rendezvous. I changed the cap and it cleared soon after. But, it came back two days later. What do you suggest? And will it pass … read more
Roy
Roy
shop foreman
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4,528 satisfied customers
Buick Century: Hi, have 2002 Buick Century. Replaced gas cap
Hi, have 2002 Buick Century. Replaced gas cap and did some other work to pass NY inspection. Reset computer and have driven 360 miles since. EVAP and CAT monitors not coming up so can't finish inspect… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
30,359 satisfied customers
Buick LeSabre Limited: Hello there, I have a 2002 Buick
Hello there, I have a 2002 Buick Lesabre that is giving me some issues. The "gas cap loose" indicator comes on when I start the car and the SES light is lit. Also, more than half the time I am driving… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
30,359 satisfied customers
2001 buick: gas cap..tight.Reset and stays off little while but comes
2001 buick lesabre__Loose gas cap failure indicated. Cap is on tight.Reset and stays off little while but comes on again.… read more
hauto
hauto
Operate own repair shop
Bachelor's Degree
2,719 satisfied customers
Buick LeSabre Custom I noticed my buick shifting very hard
I noticed my buick shifting very hard today. I checked the fluid level it was pink and was marked on the appropriate level according to the stick. I had the car running in park on leveled surface when… read more
Gary
Gary
Buick Technician
Vocational, Technical or Trade Scho
1,541 satisfied customers
Buick Century Custom 2001 Buick Century Custom came in with
2001 Buick Century Custom came in with a P0446B Evap Emission vent code. Upon checking vent solenoid found it faulty and replaced. Vehicle came back a few days later with the same code and upon hookin… read more
Dave Nova
Dave Nova
Buick Technician
Associate Degree
1,808 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
26,887 satisfied customers
2003 Buick Regal: fuel pump..the service engine soon light
Recently had fuel pump changed on a 2003 Buick Regal. Two days later, the "service engine soon" light was activated. Never had this problem before. Computer logs codes: P0440B (Evaporative emmission s… read more
BOBBYSS
BOBBYSS
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Associate Degree
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1999 BUICK CENTURY SERICE ENGINE SOON LIGHT GETS CODE P0442.
1999 BUICK CENTURY SERICE ENGINE SOON LIGHT GETS CODE P0442. WE CHANGED THE GAS CAP WHAT IS THE WORST CASE SCENARIO WITH THIS CODE IN TERMS OF COST OF REPAIR OR DAMAGE TO CAR.… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
30,359 satisfied customers
buick skylark: check eng..converter..right back..wires going to the o2
i have a1997 buick skylark the check eng light is on the code is p0440 and when this comes on so dose the ets off light Iwas told it was the converter and had it replaced and the code cleaerd but as s… read more
Dave Nova
Dave Nova
Buick Technician
Associate Degree
1,808 satisfied customers
2003 regal: 78,000 miles..service engine light..engine runs..runs good
I have a 2003 regal with a 3800 engine.It has 78,000 miles and the service engine light just came on.I had the code checked and it was P0440.I checked the fuel cap and it was secure.Any thoughts?The e… read more
GM Tech (Cam)
GM Tech (Cam)
Owner/Technician
Vocational, Technical or Trade Scho
26,887 satisfied customers
I have a 2006 Buick Lacrosse, recently I have had code 0455
I have a 2006 Buick Lacrosse, recently I have had code 0455 a couple of times (fuel evaporation [large] a couple of times. I haven't checked system further. Have you seen this problem before, if so wh… read more
Gary
Gary
Buick Technician
Vocational, Technical or Trade Scho
1,541 satisfied customers
2006 Rendezvous: dirty sensor on the drivers side..dealership..gas cap
The engine light on my 2006 Rendezvous came on. Called the OnStar mechanic number and they said the diagnostic indicated that there was either a minor air leak or dirty sensor on the drivers side, not… read more
RussMasterTech
RussMasterTech
GM Service Technician
3 Years College
546 satisfied customers
My service engine light is..code reader..evap..malfunction
my service engine light is on & fuel cap loose light is on i have a code reader code po440 evap. emission control system malfunction . what could be problem?… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
30,359 satisfied customers
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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

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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.

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