Chevy

Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Overheating on 2004 express box truck. Overflow bottle has…

Customer Question
Overheating on 2004 express...

Overheating on 2004 express box truck

Mechanic's Assistant: Have you checked the coolant? Have you checked for a leak in the cooling system?

Yes overflow bottle has also overflowed

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

Want to but don't know we're to start

Submitted: 8 months ago.Category: Chevy
Show More
Show Less
Ask Your Own Chevy Question
Answered in 1 minute by:
9/22/2017
Chevy Mechanic: Roy, import/domestic specialest replied 8 months ago
Roy
Roy, import/domestic specialest
Category: Chevy
Satisfied Customers: 7,445
Experience: ASE master tech for 40 years
Verified

hello, my name is ***** ***** I will be glad to assist you. please allow me a couple of minutes to gather some basic info.

Roy

Ask Your Own Chevy Question
Chevy Mechanic: Roy, import/domestic specialest replied 8 months ago

ok

possible causes

1. thermostat stuck closed

2. low coolant

3. clogged radiator fins not allowing cooling from air flow.

4. clogged radiator internally

5. failed head gasket from overheating. head gasket leaks compression into cooling system super heating the coolant.

Roy

Ask Your Own Chevy Question
Customer reply replied 8 months ago
How would you know if it were a failed head gasket? Do you have a image of the cooling sysrem?
Chevy Mechanic: Roy, import/domestic specialest replied 8 months ago

you would need to do a leak down test. you remove all 8 plugs and insert the leak down tester in each cylinder one at a time. then you insert shop air into the cylinder and watch for coolant to come out of the cap.

Roy

Ask Your Own Chevy Question
Customer reply replied 8 months ago
Would coolant be in the oil?
Chevy Mechanic: Roy, import/domestic specialest replied 8 months ago

over a period of time, yes. not if it just started.

that is if it is a bad head gasket.

head gasket failure is the result of overheating not the cause of overheating.

Roy

Ask Your Own Chevy Question
Chevy Mechanic: Roy, import/domestic specialest replied 8 months ago

any update???

Ask Your Own Chevy Question
Was this answer helpful?
Ask Roy Your Own Question
Roy
Roy
Roy, import/domestic specialest
Category: Chevy
Satisfied Customers: 7,445
7,445 Satisfied Customers
Experience: ASE master tech for 40 years

Roy 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

15,289 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

Chevy Technician

9,357 satisfied customers

15 years GM master tech

Tim&#039;s Auto Repair

Tim's Auto Repair

mechanic

8,866 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

2,918 satisfied customers

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

Ron Z.

Ron Z.

- Chevy Tech -

2,734 satisfied customers

18+yrs experience. State Inspector and Chevy Diagnostics

< Previous | Next >

Related Chevy Questions
I replaced the head gasket on my 96 2.2L 4-cyl. Isuzu
I replaced the head gasket on my 96 2.2L 4-cyl. Isuzu Hombre. During the R&R, I broke the electrical housing off of #3 injector, so I went to LKQ Pick-your-Part, got some used injectors and put them i… read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
I have a 2001 duramax that I just replaced the head gaskets
hi I have a 2001 duramax that I just replaced the head gaskets and injectors after I installed them I started it up and it runs fine but when I go to drive it it has no power and it wont pick up speed… read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,289 satisfied customers
Kytrf. 2004.5 duramax lly. Head gaskets. 6.6 lly. No
kytrf JA: What is the model/year of your Chevy? Customer: 2004.5 duramax lly JA: Are you fixing your vehicle yourself? What have you tried so far? Customer: head gaskets JA: Is this your first time de… read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,289 satisfied customers
Its running hot while ac is on. No leaking both radiator a
no leaking both radiator a reservoir is full, changed the thermostat, radiator, fan clutch and water pump, … read more
Roy
Roy
import/domestic specialest
7,445 satisfied customers
I have possible head gasket failure, but want to keep
Thank you, ***** ***** possible head gasket failure, but want to keep believing its not. I have a 06 LBZ … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
Head gasket the manufactuer claims the oil wasn't changed
head gasket blown the manufactuer claims the oil wasn't changed but is was … read more
Mechanic01
Mechanic01
2,596 satisfied customers
I am getting a U0100 and P0090 codes. I just put head gasket
I am getting a U0100 and P0090 codes . I just put head gasket set on it and when I put it back together it gave me these codes. … read more
Chris (aka - Moose)
Chris (aka - Moose)
Vocational, Technical or Trade Scho
108 satisfied customers
Advise steps to replace head gaskets on a 2005 trailblazer.
please advise steps to replace head gaskets on a 2005 trailblazer. Should be straight forward, just looking for any problem areas that I might run into. Thanks… read more
Jerry Newton
Jerry Newton
Vocational, Technical or Trade Scho
2,066 satisfied customers
Head gasket if to much water got into the cylinder can it
Blown head gasket if to much water got into the cylinder can it cause vaper lock 350 chevy… read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
I have a 08 Equinox and having some head gasket issues.
I have a 08 Equinox and having some head gasket issues. Removed Radiator petcock a broke the top. Now having issues getting it all the way out. Will it just screw all the way out? I was turning it for… read more
Randall
Randall
Auto Technician / Consultant
Vocational, Technical or Trade Scho
69 satisfied customers
I am putting a head gasket on a 2009 Chevy Cobalt 2.2L
I am putting a head gasket on a 2009 Chevy Cobalt 2.2L engine. I would like to get the torque specifications and other considerations for the installation. Thanks, Derek… read more
Ron Z.
Ron Z.
- Chevy Tech -
Vocational, Technical or Trade Scho
2,734 satisfied customers
Do head gaskets on a 2.5 Malibu low without overheating? I
Do head gaskets on a 2.5 Malibu low without overheating? … read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
Replaced both head gaskets and got started ran for about 40
Replaced both head gaskets and got started ran for about 40 minutes then died no start and no codes … read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,289 satisfied customers
At the bare minimum it needs a new head gasket. I replaced
At the bare minimum it needs a new head gasket. I replaced spark plugs last week and found oil on some of the spark plugs. … read more
Gary
Gary
Chevy Technician
Vocational, Technical or Trade Scho
9,357 satisfied customers
We replaced the head gasket and now the car loses .5 to the
we replaced the head gasket and now the car loses .5 to the amount in the reservoir of coolant every 500 plus miles. It is not in the oil, not coming out the tailpipe, not going through the heater cor… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
The head gasket blew and the head also got a hole in it.
The head gasket blew and the head also got a hole in it. Both were replaced but the oil pressure reads low after the engine heats up to normal temp. what do you think is the problem? … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
5,284 satisfied customers
I HAVE A 1968 BUICK RIVIERA WITH A HEAD GASKET...IS THIS
GOOD AFTERNOON: I HAVE A 1968 BUICK RIVIERA WITH A BLOWN HEAD GASKET...IS THIS SOMETHING YOU CAN DO ON A MOBLE BASIS? TOM … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
Told I have a head gasket leak.how much to plane a head on
Told I have a head gasket leak.how much to plane a head on the duramax diesel … read more
Roy
Roy
import/domestic specialest
7,445 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