Chevy

Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Working on a 2007 Chevy trailblazer 4.2 L engine. Pulling…

Customer Question
Working on a 2007 Chevy...
Working on a 2007 Chevy trailblazer 4.2 L engine. Pulling codes P2119, P300 , P0495 and P0455. Engine light just came on with these codes. We replaced the engine a while ago in the vehicle has been sitting for a while now
Submitted: 10 months ago.Category: Chevy
Show More
Show Less
Ask Your Own Chevy Question
Answered in 11 minutes by:
9/26/2017
Chevy Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 10 months ago
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Chevy
Satisfied Customers: 5,772
Experience: Owner at Carolina Auto Service & Sales , 20 years Experience in Foreign & Domestic vehicles A6 - Electrical / Electronic systems A7 Heating / Air Conditioning systems
Verified

Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP.

Ask Your Own Chevy Question
Chevy Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 10 months ago

Hey how are you

we have a Misfire issue P0300 , P2119 ,Throttle body issue , P0455 evap (emission related ) and p0495 is fan issue .

now ,make sure you have a good 12 volts on battery and these fault codes are not fake codes caused by that if it has been sitting , I sent you the troubleshoot and most possible causes on these issue

Start the trouble shoot with P0300 then clear fault codes and see what comes back .

these vehicles also are known about needing a TB Throttle body and looses it syn with car and it goes in limp mode

You are very welcome :)

Please Read Below How to Get Back in touch with Me

Please Take a Second and Click the Stars at the Top of Your Screen To Rate Me , So I May Receive my Credit , A 5 Stars Rating is Much Appreciatted

Follow Up Questions are Included in The Price of Your Question ,So Feel Free To Ask Me.

Please Keep in Mind that when you Rate Me , it Does Not End our Conversation.

You Can Always Come Back to this Conversation and Ask Me any Follow up Question you May have on this Issue

(You can Copy this Link Page & Paste it in your Browser when Ready and it will Open up our Conversation Again)

or there should be a Tab on your Screen to Add me As Your Favorite Expert

I'm Online Daily from 7 Am Till Late Eastern Time Zone

Thank You
Chad Farhat
ASE Certified Technician

Ask Your Own Chevy Question
Customer reply replied 10 months ago
Please open this thread up to another technician. You and I have worked together in the past and we are not a good fit. Thank you
Chevy Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 10 months ago

yes no worries will do

Ask Your Own Chevy Question
Chevy Mechanic: Dan, Technician replied 10 months ago
Dan
Dan, Technician
Category: Chevy
Satisfied Customers: 26,029
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
Verified

Hello, my name is***** the check engine light flash while driving around?

Ask Your Own Chevy Question
Customer reply replied 10 months ago
No it does not. It appears to drive fine and seems normal. I might feel the engine shaking a tiny bit, but It is not flashing, and seems to be running fine. the light has not been on while idling in parking lot for testing, but I just drove it a few miles and the light came on.
Chevy Mechanic: Dan, Technician replied 10 months ago

It sounds like you may have a few problems. P0300 is a random misfire which can be caused by just about anything. P2119 sets when the ECM determined that the throttle valve did not return to the rest position within 720 milliseconds. This could be caused by a dirty throttle body or a failing throttle body. Clean out throttle body with cleaner, spray onto rag then wipe out throttle bore and throttle plate, this may also be the cause of he P0300. P0495 usually means the cooling fan clutch is locked up, with vehicle off and engine cooled down check to see if you can easily spin the fan if not fan/clutch needs to be replaced. P0455 means evap system has a leak which is usually caused by gas cap, purge solenoid, or vent solenoid and in that order. Let me know if you have more questions, thanks.

Ask Your Own Chevy Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a chevy mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Dan Your Own Question
Dan
Dan
Dan, Technician
Category: Chevy
Satisfied Customers: 26,029
26,029 Satisfied Customers
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database

Dan 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:

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 >

Related Chevy Questions
I have a 2007 Chevy Trailblazer SS. 95k miles on it. I keep
I have a 2007 Chevy Trailblazer SS. 95k miles on it. I keep getting a reoccurring although somewhat intermittent P2135 code on it upon first drive of the day. goes into reduced power mode and sputters… read more
Gary
Gary
Chevy Technician
Vocational, Technical or Trade Scho
9,642 satisfied customers
Need help on a 2005 Chevy trailblazer 4.2 L engine. Came in
Hi, need help on a 2005 Chevy trailblazer 4.2 L engine. Came in with a DTC code of P0014, apparently when sitting in a long line at the bank or in traffic when the customer tries to accelerate from si… read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
06 trailblazer... P0411 & P0455 codes , would not pass
would not pass inspection because of these codes. replaced check valve ,hoses,and air pump. still will not pass. … read more
Dave Nova
Dave Nova
Chevrolet Technician
Associate Degree
7,092 satisfied customers
Chevrolet 2002 Trailblazer 4.2: Have 2002 Chevy Trailblazer
Have 2002 Chevy Trailblazer 4.2 LS Rear Wheel. Reduce engine light comes on, gas pedal get spongy, when temperature is around 35 to 40 degrees oil pressure will go from 40 to 0 and back to 40 when eng… read more
Lou P. master tech
Lou P. master tech
Mercedes Benz master tech
Bachelor's Degree
649 satisfied customers
2006 Chevy Trailblazer: check engine light on..p0455..gas cap..cracked
I have a 2006 Chevy Trailblazer with the check engine light on. I had the code checked and it came back as P0455. So I checked the gas cap thinking it was loose or cracked when I noticed inside the fu… read more
rodcuda
rodcuda
Auto repair pro, 30 years experience
Associate Degree
74 satisfied customers
Chevrolet Trailblazer LT what is the towing capacity for the
what is the towing capacity for the 2007 chevy trailblazer (5.3 - V8 engine)? Is it different for the LS & LT versions?… read more
David H
David H
Vocational, Technical or Trade Scho
2,413 satisfied customers
Engine power..The check engine light came on flashing..steady
I recently experienced a hestitation in the engine power. The check engine light came on flashing then went to steady on. This morning it took a while to start. Starter sounds fine, After driving arou… read more
Ted G.
Ted G.
Technical/Sales Trainer
Vocational, Technical or Trade Scho
4,376 satisfied customers
2004 chevy trailblazer: Engine light came..Dealer replaced air pump
Davo, I have a 2004 chevy trailbalazer. Engine light came on. Dealer replaced air pump. 400 miles later the engine light came back on. I noticed the airpump not coming on at engine startup. Currently … read more
Dave Nova
Dave Nova
Chevrolet Technician
Associate Degree
7,092 satisfied customers
TRAILBLAZER: MY CHECK ENGINE LIGHT CAME IN AND IS..LOOSE POWER
MY CHECK ENGINE LIGHT CAME IN AND IS NOW ALSO LOOSING POWER.I PULLED THE CODE AND IT WAS PO128.WOULD THIS CAUSE MY TRAILBLAZER WITH THE 4.2 TO LOOSE POWER OR SURGE.… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
2005 Chevy Trailblazer: My check engine light..compression
My check engine light is on , the scan read compression code 4, what is this? I have a 2005 Chevy Trailblazer… read more
Ted G.
Ted G.
Technical/Sales Trainer
Vocational, Technical or Trade Scho
4,376 satisfied customers
2007 Suburban: v8..First my Engine/Emission light came on.
2007 Suburban v8. First my Engine/Emission light came on. Sooooon thereafter, the Service Stabilitrak, Engine Power reduced & Service vehicle messages appeared....followed by significant reduced perfo… read more
DriverDave
DriverDave
Smog Technician
40 college units completed with 4.0
66 satisfied customers
2005 chevy trailblazer: check engine light..overheating..light went
i have a 2005 chevy trailblazer - check engine light comes on and code states engine cooling fan- not overheating- light went out on own but now back on?… read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
2005 Chevy Trailblazer: Liter engine..He is on interstate driving
my brother has a 2005 Chevy Trailblazer/4.2 Liter engine. He is on interstate driving between Kansas City and Omaha. The check engine light just came on. Car seems to be running okay. Should he be wor… read more
mauricio
mauricio
Vocational, Technical or Trade Scho
372 satisfied customers
2004 Chevy Trailblazer LT: service engine soon..diagnostics..wiper
I have a 2004 Chevy Trailblazer LT with approx 52500 miles-purchased it a month ago-service engine soon light came on the first evening we had it-took it back to the dealer they did some diagnostics a… read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,756 satisfied customers
2002 chevy trailblazer: 4x4..following codes..cooling fan high.
2002 Chev trailblazer 4.2 engine and 4x4. i am wondering if you could tell us what the following codes mean u1300 class 2 communication circuit high. po495 cooling fan high. u1041 loss of ebcm/ebtcm c… read more
goodwrench9124
goodwrench9124
Lead Tech/ Shop Leader
Vocational, Technical or Trade Scho
2,571 satisfied customers
Ses light..engine speed is so highand vehicle seems slugish
ses light was on , when checked with ascanner showed above code,and felt like engine speed is so highand vehicle seems slugish… read more
Greg A.
Greg A.
Bachelor\u0027s Degree
37 satisfied customers
My Chevrolet Trailblazer sounds like it is stuck in ...
My Chevrolet Trailblazer sounds like it is stuck in overdrive. Any suggestions as to what the problem is?… read more
G.M. Mastertech
G.M. Mastertech
Vocational, Technical or Trade Scho
10 satisfied customers
2002 Chevy trailblazer: keyless entry..my check engine light is on
I have a 2002 Chevy trailblazer that is having electrical problems. The problem started with the keyless entry not working, two days later the rear defrost would not turn on, couple days after that th… read more
Davo
Davo
Master Auto Tech/manager of auto shop
Vocational, Technical or Trade Scho
1,644 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