Ford

Have Ford Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Ford
This answer was rated:

My F150 has about 140000 miles and when I was driving the

other night it went into...
My F150 has about 140000 miles and when I was driving the other night it went into fail safe cooling mode and I noticed coolant was venting from the reservoir cap. I turned off truck and everything returned to normal except the Service Engine Soon indicator was lit. The OBD code was P1299. I then had the radiator checked and had the thermostat, hoses and reservoir replaced but it still happens.
JA: Do you have the trouble code? Do you have a code reader or scan tool?
Customer: p1299
JA: I'll pass this info along to the Ford Mechanic so that he can get you a quick fix. What year is your F150?
Customer: 2003
JA: Are you fixing your F150 yourself? What have you tried so far?
Customer: No. See my earlier reply for what has been done.
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Show More
Show Less
Ask Your Own Ford Question
Answered in 3 minutes by:
9/17/2017
Ron Z.
Ron Z., - Ford Tech -
Category: Ford
Satisfied Customers: 19,218
Experience: 18+yrs experience. State Inspector & Ford Diagnostics/Repair
Verified

Hi! Welcome to JustAnswer. Thanks for coming! I'm Ron and I'll be working with you on your question today.

May I have the engine size in this vehicle?

Ask Your Own Ford Question
Customer reply replied 2 months ago
4.6L
EricFromCT
EricFromCT, Ford Technician
Category: Ford
Satisfied Customers: 4,160
Experience: 20 years dealership exp., ASE A1-A9 L1 L2, Ford Lincoln Mercury Senior Master, Diesel Certified
Verified

THe p1299 indicates that the vehicle went into a failsafe mode due to overheating being detected. These engines do have problems with the cylinder head temp sensor where it indicates overheating when it actually may not be. But if you feel the engine is actually overheating, then you may have a radiator or headgasket issue causing the overheat.

Please note that customer satisfaction is my number one goal and rating this chat session 3 or more stars will keep the chat open for further follow up questions you may have. Click here for an example of how to rate . Also we can respond in this chat back and forth many times. I may be offline when you respond but I will promptly reply when I return.

Thank you for rating my assistance and for using Just Answer.

Ask Your Own Ford Question
Customer reply replied 2 months ago
I am overheating because coolant is coming out of the reservoir when this happens. The radiator hoses, thermostat and reservoir were replaced yesterday and it still happens.

Ok. Coolant comes out of the reseviour when you have a headgasket failure which is letting combustion gasses get into the cooling system and causing the pressure to rise and the coolant to come out. THere are a couple checks you can try to do before condemning the headgaskets. You can do a block check, which tests for combustion gasses in the coolant. And you can also pressurize the cooling system and see if the pressure goes down and then remove the plugs to check for coolant in the cylinders. There are a few other tests as well.

Please note that customer satisfaction is my number one goal and rating this chat session 3 or more stars will keep the chat open for further follow up questions you may have. Click here for an example of how to rate . Also we can respond in this chat back and forth many times. I may be offline when you respond but I will promptly reply when I return.

Thank you for rating my assistance and for using Just Answer.

Ask Your Own Ford Question
Customer reply replied 2 months ago
I have an OBD tester and when I checked it last it had P1299 and then also P0301 (cylinder 1 misfire). Is the P0301 because of the fail safe cooling mode or can this cause overheating.

P0301 does not have to set with the p1299. That could be a cylinder that has an issue with the headgasket and a misfire may be being detected. If I was to look around I would concentrate on that cylinder first.

Please note that customer satisfaction is my number one goal and rating this chat session 3 or more stars will keep the chat open for further follow up questions you may have. Click here for an example of how to rate . Also we can respond in this chat back and forth many times. I may be offline when you respond but I will promptly reply when I return.

Thank you for rating my assistance and for using Just Answer.

Ask Your Own Ford Question

A cylinder misfire will not cause you to overheat.

Please note that customer satisfaction is my number one goal and rating this chat session 3 or more stars will keep the chat open for further follow up questions you may have. Click here for an example of how to rate . Also we can respond in this chat back and forth many times. I may be offline when you respond but I will promptly reply when I return.

Thank you for rating my assistance and for using Just Answer.

Ask Your Own Ford Question
Customer reply replied 2 months ago
When the reservoir was changed they did a pressure check (at the reservoir cap) and the pressure was constant. Is this where you were talking about doing a pressure check?

Yes that is one test that can be done. SHould really let it sit overnight and check for a pressure loss. This is not conclusive but just 1 of several things that can indicate a headgasket failure.

Please note that customer satisfaction is my number one goal and rating this chat session 3 or more stars will keep the chat open for further follow up questions you may have. Click here for an example of how to rate . Also we can respond in this chat back and forth many times. I may be offline when you respond but I will promptly reply when I return.

Thank you for rating my assistance and for using Just Answer.

EricFromCT
EricFromCT, Ford Technician
Category: Ford
Satisfied Customers: 4,160
Experience: 20 years dealership exp., ASE A1-A9 L1 L2, Ford Lincoln Mercury Senior Master, Diesel Certified
Verified
EricFromCT and 87 other Ford Specialists are ready to help you
Ask your own question now
Customer reply replied 2 months ago
OK. I'll see what happens and I may have some follow-up questions. Thanks very much.

Ok. A block test is the most reliable to check for combustion gasses in the coolant. And also if when running you can see a lot bubbles keep going into the coolant is another indicator. Can be purchased at an auto part store.

Please note that customer satisfaction is my number one goal and rating this chat session 3 or more stars will keep the chat open for further follow up questions you may have. Click here for an example of how to rate . Also we can respond in this chat back and forth many times. I may be offline when you respond but I will promptly reply when I return.

Thank you for rating my assistance and for using Just Answer.

Ask Your Own Ford Question
Customer reply replied 2 months ago
What can be purchased?

A block tester.

Ask Your Own Ford Question
Customer reply replied 2 months ago
Thanks

Your welcome.

Ask Your Own Ford Question
Customer reply replied 2 months ago
It looks like you use the block tester on the fill opening of the reservoir, correct?

Yes. But the coolant level needs to be lowered because if coolant gets in the tester it changes the cooler of the fluid instantly. So lower the coolant down a few inches.

Ask Your Own Ford Question
Customer reply replied 2 months ago
Perfect. Thanks.
Ask EricFromCT Your Own Question
EricFromCT
EricFromCT
EricFromCT, Ford Technician
Category: Ford
Satisfied Customers: 4,160
4,160 Satisfied Customers
Experience: 20 years dealership exp., ASE A1-A9 L1 L2, Ford Lincoln Mercury Senior Master, Diesel Certified

EricFromCT 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:

AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on.

Rich DUSA

Because of your expertise, you armed me with enough ammunition to win the battle with the dealer. They are installing a fuel filter and fuel pump at no charge to me.

MollyUSA

I needed help with my car on Saturday morning....got a response in 5 minutes, and it was the perfect solution. Thanks again to your service.

Jason V.Kirkland, WA

I do know, after going though this with JustAnswer, that I can somewhat trust my mechanic but I will always contact you prior to going there.

BRNew Jersey

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

< Previous | Next >

Meet the Experts:

Ron

Ron

ASE Certified Technician

24,252 satisfied customers

23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs

Chris (aka- Moose)

Chris (aka- Moose)

Technician

28,078 satisfied customers

16 years experience

John Mc

John Mc

Ford Technician

5,495 satisfied customers

19 years Ford Lincoln Mercury experience

Chuck

Chuck

ASE Certified Technician

1,685 satisfied customers

33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance

Cam

Cam

Journeyman Automotive Technician

10 satisfied customers

GM Grand Master Technician 2007. 14 years Automotive experience.

Richard

Richard

ASE Certified Technician

1,524 satisfied customers

12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.

Mike V.

Mike V.

Auto Service Technician

1,365 satisfied customers

25 years experience on all makes and models, Licensed NYS Inspector.

< Previous | Next >

Related Ford Questions
Just changed radiator and thermostat and have refilled and
Just changed radiator and thermostat and have refilled and let run for thirty minutes but water doesn't seem to be circulating through system. Removed sensor at pump and pump is full. If I put thermos… read more
Joecamel90
Joecamel90
Technician
Associate Degree
24 satisfied customers
2003 Ford Escape v6. My thermostat was stopping my water
2003 Ford Escape v6 . My thermostat was stopping my water flow . When I replace It is there a bleeding procedure for this car ? And also could I just remove it and drive it like that ?… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,101 satisfied customers
My test gauge says my 2011 Ford ranger engine coolant
hello, My test gauge says my 2011 Ford ranger engine coolant temperature sensor is faulty. Not getting the engine warm enough,I guess. Where is the thing? :) … read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
Can you give me the instructions on changing the thermostat,
can you give me the instructions on changing the thermostat, and also the position of the gasket and thermostat. etc and torque specs? I have a 1999 Ford F150 4.2… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,078 satisfied customers
We have another problem. We changed the thermostat in this
We have another problem. We changed the thermostat in this 1992 ford f250. And it does not read on the dash. What can this be?… read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
No heat ford expendition. Have not checked thermostat. fuild
have not checked thermostat. fuild was a little low added still no heat … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,078 satisfied customers
The coolant sensor has gone out and I can't find it. Coolant
The coolant sensor has gone out and I can't find it … read more
Gunvir Singh
Gunvir Singh
1,815 satisfied customers
Just changed the thermostat in my 03 ford 3escape now when
just changed the thermostat in my 03 ford 3escape now when it warms up the radiator fans run on high all the time. Did not used to do this … read more
tim37857
tim37857
Mechanic
High School or GED
71 satisfied customers
Confused on whether water pump or thermostat. 2013 Ford F150
Hello. Confused on whether water pump or thermostat. 2013 Ford F150 5.0. A couple days ago, noticed low on coolant, not noticing any leaks. Been adding coolant, now I noticed dripping only when vehicl… read more
roy
roy
Associate Degree
3 satisfied customers
I have no heat. Replaced the thermostat, replaced the blend
replaced the thermostat, replaced the blend door replaced the heater control valve … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,084 satisfied customers
Coolant doesn't appear to be fillinup radiator to cool it
Coolant doesn't appear to be fillinup radiator to cool it off from the reservoir. When … read more
Gabriel Grey
Gabriel Grey
Master Service Technician
Associates
278 satisfied customers
Changed thermostat and still get no heat. Coolant is down a
Changed thermostat and still get no heat JA: Have you checked to make sure the thermostat is working? What about the coolant level? Customer: Coolant is down a little JA: What is the model/year of you… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
The coolant line from the thermostat to the reservoir broke
The coolant line from the thermostat to the reservoir broke ant the T connection. I have it apart but need to know the easiest way to get the new line around behind the engine and the torque specs for… read more
Dan
Dan
Dealership Technician
Associate Degree
1,723 satisfied customers
Replaced radiator and thermostat but still no circulation
replaced radiator and thermostat but still no circulation top hose get hot lower one does not and hose to heater core stays cool … read more
Lou P. master tech
Lou P. master tech
Mercedes Benz master tech
Bachelor's Degree
649 satisfied customers
Engine oil temps are running hotter then coolant temps. had
engine oil temps are running hotter then coolant temps. had some coolant overflow today while driving tgrough mountains pulling trailer when motor got hot … read more
TIM MOHR
TIM MOHR
SHOP OWNER
Master's Degree
8,037 satisfied customers
Coolant leaks at rear of engine. Engine not run for last
coolant leaks at rear of engine. Engine not run for last several days so no pressure in engine. … read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
Changed thermostat in 1996 ford 6 24 valve engine and it
changed thermostat in 1996 ford 6 24 valve engine and it still over heats there is no water in the oil or oil in the water … read more
tim37857
tim37857
Mechanic
High School or GED
71 satisfied customers
Overheating has new thermostat no leaks, Coolant is full and
A local mechanic where I got the truck from has been looking at it and he changed the thermostat … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,101 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