Chevy

Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Chevy
This answer was rated:

Chevy Tahoe: I have an 05 tahoe and While I was at a drive

I have an 05 tahoe...
I have an 05 tahoe and While I was at a drive through I heard my fans going and looked at gauge and it was Almost pegged, so I pulled over and carefully released the pressure from the overflow. Once the pressure was gone I checked the fluid level and it was fine and en I started it again the temp was I little above where it usually is. As I drove down the road it varied between hot and not. So I thought it might be thermostat since usually if its a pump it makes a racket and drains like a sive. Got home switched thermostat and to no avail, still overheating. As it gets hot it seams to sit there and boil in reservoir . With heater on ,I get only cool air. Could it be my heater core( hopefully not $$$$$$$). Please advise
Show More
Show Less
Ask Your Own Chevy Question
Answered in 6 hours by:
6/4/2013
indy-tech
Category: Chevy
Satisfied Customers: 7,143
Verified
Hi .

I suggest you have a Combustion leak test done to confirm that you don't have a bad headgasket , as this is what it sounds like , unless the cooling fans are not working fully .

But if driving down the road does not cool the engine down and still boils over then this could well be a blown headgasket .

Click here to see what to do .

Need further assistance then please get back to me with the reply box and not the poor or bad service button .

Rgds Greg
indy-tech
Category: Chevy
Satisfied Customers: 7,143
Verified
indy-tech and 87 other Chevy Specialists are ready to help you
Ask your own question now
Customer reply replied 4 years ago
I did the first test of squeezing the top hose and there wasn't any pressure
Hi Gary

Okay then just remove the radiator cap and have it tested, you could well have just a bad radiator cap , this will explain the water /coolant being pushed out into the reservoir .

Do this first . if cap is good do the test is said , if the water is boiling in the reservoir .
there must be some pressure .

Greg
Ask Your Own Chevy Question
Ask indy-tech Your Own Question
indy-tech
indy-tech
indy-tech
Category: Chevy
Satisfied Customers: 7,143
7,143 Satisfied Customers

indy-tech 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

15,249 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

Chevy Technician

9,196 satisfied customers

15 years GM master tech

Tim&#039;s Auto Repair

Tim's Auto Repair

mechanic

8,847 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

2,900 satisfied customers

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

Ron Z.

Ron Z.

- Chevy Tech -

2,682 satisfied customers

18+yrs experience. State Inspector and Chevy Diagnostics

< Previous | Next >

Related Chevy Questions
My heater core has been disconnected and I would like to
Hi my heater core has been disconnected and I would like to reattach the hoses … read more
Gary
Gary
Chevy Technician
Vocational, Technical or Trade Scho
9,196 satisfied customers
I want to change the thermostat and do a radiator flush on
I want to change the thermostat and do a radiator flush on my 2005 Monte carlo … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
I had a new heater core installed in my 99 Blazer - i only
I had a new heater core installed in my 99 Blazer - i only get hot air when it set to 82 degrees other wise i only get cold air … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,000 satisfied customers
Coolant leak passenger side heater core box. Not sure how
and the guy didn't tell me when I should top up and gas jockey put concentrate instead of dexcool … read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
My Equinox is bubbling after I changed the radiator. 120000
My Equinox is bubbling after I changed the radiator … read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
What is the procedure for removing the radiator in a 2014
What is the procedure for removing the radiator in a 2014 Chevy Captiva LS, 2.4L 4 cylinder?… read more
Gunvir Singh
Gunvir Singh
1,702 satisfied customers
The engine overheats. And have replaced radiator cap. 2005
The engine overheats JA: Have you checked the coolant? Have you checked for a leak in the cooling system? Customer: Yes, and have replaced radiator cap JA: What is the make/model/year of your car? Cus… read more
TIM MOHR
TIM MOHR
SHOP OWNER
Master's Degree
8,037 satisfied customers
Oily fluid right side cab behind heater core 1984 chevy. All
oily fluid right side cab behind heater core 1984 chevy … read more
roy
roy
Associate Degree
3 satisfied customers
Heater core failed, it's leaking into the passenger side
I haven't fixed it yet. It happened yesterday after my AC quit. I live in Louisiana so not having AC is tough … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,912 satisfied customers
Engine overheated and blew radiator. Replaced radiator and
engine overheated and blew radiator. Replaced radiator and put in new thermostat. engine will idle 20 min or so to get up to temp, Starts to overheat (boiling water in upper rad hose while lower hose … read more
Gunvir Singh
Gunvir Singh
1,702 satisfied customers
Car was running after I changed the heater core car will not
car was running after I changed the heater core car will not start or I cannot here fuel pump come on when I turn key… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,912 satisfied customers
Heater core r&r on G10 1991 van. I have the shop manual and
heater core r&r on G10 1991 van. I have the shop manual and see your instructions here just copy/paste from the manual. I need more detailed help as I do not understand several diagrams and words in t… read more
Jerry Newton
Jerry Newton
Vocational, Technical or Trade Scho
2,066 satisfied customers
I just replaced the heater core in my 1997 tahoe. The heat
I just replaced the heater core in my 1997 tahoe. The heat is blowing cold and the temp gauge is reading around 240. … read more
roy
roy
Associate Degree
3 satisfied customers
I have a 1995 chevrolet g10 that the heater core is leaking.
i have a 1995 chevrolet g10 that the heater core is leaking. i need the directions on how to replace it along with any picctures if possible… read more
roy
roy
Associate Degree
3 satisfied customers
Nowatercoming from top of water pump to heater core truck
nowatercoming from top of water pump to heater core truck does not run hot have changed thermastat no heat in cab could pump be bad … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Trying to learn how to flush heater core. dont know which is
trying to learn how to flush heater core. dont know which is inlet and which is outlet. … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
1,882 satisfied customers
Trouble replacing heater core in a 2001 chrvrolet blazer
trouble replacing heater core in a 2001 chrvrolet blazer zr2 … read more
Lou P. master tech
Lou P. master tech
Mercedes Benz master tech
Bachelor's Degree
649 satisfied customers
I just changed the heater core and its still not getting
I just changed the heater core and its still not getting hot … read more
Tim&#039;s Auto Repair
Tim's Auto Repair
mechanic
High School or GED
8,847 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