Chevy

Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Related Chevy Questions
1996 Chevy S19 2.2L engine with P0171 code. Previous had
1996 Chevy S19 2.2L engine with P0171 code. Previous had EVAP code of P442 or P440 I forget which. I have replaced Fuel filter, Air filter MAP sensor and canister purge solenold. Have checked PVC valv… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
6,169 satisfied customers
Ltft is at 25% setting both lean codes, 171 and 174, 2002
it drops down some when revved Looked at vacuum stays at 20… read more
camerontech
camerontech
20 year experience diagnostic technician
class a
678 satisfied customers
2005 Chevy Malibu 4 cylinder. Failed emissions due to NOx
2005 Chevy Malibu 4 cylinder. Failed emissions due to NOx GPM. Also have codes p0141, po171. I can't seem to find the egr valve? It's the new body style malibu.… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
2001 Chev silverado 1500 4.8L. Getting codes P0171 and
2001 Chev silverado 1500 4.8L. Getting codes P0171 and P0174,. Long term fuel trims pegged at 25%, short term 7%. Cleaned MAF, no change. Installed New O2 sensors and new MAF no change. Checked for op… read more
roy
roy
Associate Degree
3 satisfied customers
I have done an engine swap in a 1970. The car now had a ls
I have done an engine swap in a 1970 Monte Carlo. The car now had a ls base 5.3 gm engine out of a 2002-2004 Silverado. I have just gotten around to hooking the o2 sensors up and when I do boy she doe… read more
Matt
Matt
Engineer
Bachelor's Degree
5 satisfied customers
Have a chevy express 2500 does not go into closed loop, i
Have a chevy express 2500 does not go into closed loop … read more
Gary
Gary
Chevy Technician
Vocational, Technical or Trade Scho
9,642 satisfied customers
I have a 2004 Silverado 5.3 4wd that I am working on. My
I have a 2004 Silverado 5.3 4wd that I am working on. My buddy brought it to me to fix complaining of a lack of power, excessive white smoke/ soot from the tailpipe, an odor to the exhaust and a flash… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
Chevrolet blazer: Hello, 2000 blazer p0171&p0174 codes - service
Hello, 2000 blazer p0171&p0174 codes - service engine light on /off following diag post 1 st vacuum lines replace to intake(some were frayed/split) code reoccurred after a while of driving reattempt -… read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,756 satisfied customers
Cheverolet Malibu: 2006 Malibu 3.5 V6...short term fuel trim
2006 Malibu 3.5 V6...short term fuel trim runs at or near 0. Long term fuel trim runs between +14 and +22 depending on load. Usually a higher load means higher fuel trim. This causes a MIL of P0171 an… read more
zzdaryl
zzdaryl
Lead Auto Tech
Some college and advanced training
4 satisfied customers
Chevrolet Tahoe LT: I have a 2004 chevy Tahoe and it started
I have a 2004 chevy Tahoe and it started to accelerate very irraticly and check engine light came on. I pulled the codes P0101, P0171, P0174. Also Freeze Frame info: P0171 ABSLT TPS (%) 24.4 CALC LOAD… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
2000 impala: p0420..fuel starvation stalls..runing..fuel line pressure
I have a 2000 impala 3.8 which gives a p0420 code. the car mimics symptoms of fuel starvation stalls at idle and wount stay runing without feathering the gas. The fuel line pressure is ok any clues as… read more
Jan Andersson
Jan Andersson
Master Tech
Bachelor's Degree
3 satisfied customers
cavalier: idles rough..compression..good fuei injectors..most misfires
04 cavalier 2.2 idles rough po3oo replaced plugs, boots LT fuel trim is -10% no other codes compression is good spark is good fuei injectors seem to be good no. 3 cyl has the most misfires but all cyl… read more
Jerry Newton
Jerry Newton
Vocational, Technical or Trade Scho
2,066 satisfied customers
Chevrolet Blazer i have been getting a P0171, P0174, and a
i have been getting a P0171, P0174, and a P0300. i have replaced the maf sensor, checked for vacuum leaks, replaced wires, plugs, rotor, dis. cap, fuel pressure regulator, fuel injectors (whole unit),… read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,756 satisfied customers
Chevrolet Impala LS Hello, I have a 2000 Chevy Imapala LS,
Hello, I have a 2000 Chevy Imapala LS, 3.8L V6. It has two problems I would appreciate help with. First, the engine sometimes idles rough on cold start up and then runs pretty good after it warms up. … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
CYL..MISSING W/ MISFIRES RECORDED ON ALL CYLINDERS SMOKED INTAKE..O2
06 HUMMER H3 codes P0171 P2119 @ OPERATING TEMPERATURE ENGINE RUMBLES LIKE ALL CYL ARE MISSING W/ MISFIRES RECORDED ON ALL CYLINDERS SMOKED INTAKE - SEALED ALL LOCATED/VISIBLE LEAKS LT TRIM FROM 24% D… read more
Dave Nova
Dave Nova
Chevrolet Technician
Associate Degree
7,092 satisfied customers
I have a 2001 chevy prizm with a p0171 code set. Ive been
I have a 2001 chevy prizm with a p0171 code set. I've been montering the short term fuel trim in closed loop position and initally was going up to 15-18%. I cleaned the MAF with throttle body cleaner … read more
Dave Nova
Dave Nova
Chevrolet Technician
Associate Degree
7,092 satisfied customers
2001 GMC: rough idle..weather..drops..idle with light acceleration
Hi I have a 2001 GMC 1500 With the 5.3. I have a constant rough idle, that doesn't seem to change weather engine is hot or cold. My LT fuel trim is up to 17 and drops to about 9 above idle with light … read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,756 satisfied customers
1999 Chevy Suburban: auto O/D 2wd..O2 sensors..lean..rich
1999 Chevy Suburban 5.7L auto O/D 2wd. O2 sensors on bank 2 showed very lean upstream (34-96mv) and very rich downstream (900+mv). Engine at idle would end up fouling plugs on bank 2 (2,4,6,8) and bla… read more
car-pro
car-pro
Associate Degree
54 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.

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:

I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money.

Todd LRochester NY

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

< Previous | Next >

Meet the Experts:

GM Tech (Cam)

GM Tech (Cam)

Chevy Technician

15,756 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

Chevy Technician

9,642 satisfied customers

15 years GM master tech

Tim&#039;s Auto Repair

Tim's Auto Repair

mechanic

8,884 satisfied customers

Have owned a repair shop for 25 yrs.

Dave Nova

Dave Nova

Chevrolet Technician

7,092 satisfied customers

ASE Master Certification. GM World Class Certification

John

John

Master A.S.E Automotive technician

4,071 satisfied customers

A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician

Don - Mo Lurch

Don - Mo Lurch

Auto Mech / Electronics

2,953 satisfied customers

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

Ron Z.

Ron Z.

- Chevy Tech -

2,836 satisfied customers

18+yrs experience. State Inspector and Chevy Diagnostics

< Previous | Next >

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