Question about 2003 Jeep Grand Cherokee

1 Answer

Symptoms of a cracked head

What are signs of a cracked head?

Posted by on

  • billy carruth Feb 22, 2012

    car running hot even when thermostat disabled

×

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 60 Answers

First of all, don't "disable" the thermostat, It is an important part of the cooling system. Without it, you could crack the cylinder head from coolant boil-over! Ok, the most obvious sign of a cracked/warped head, or gasket failure is white smoke at the tail pipe, air bubbles in the cooling resivoir, milky, thick, coffee with cream colored oil, or external coolant leaks. If you just have an overheating problem, you should investigate the cooling system first. Check the fan(s), there may be a belt driven and an electric fan for your truck, make sure they both are operating. (turn the ac on with the engine warmed up) Check that when at operating temperature, shut the engine off and make sure the belt driven fan has resistance when you turn it by hand. If it turns and spins freely, replace it. Flush your radiator with a good coolant flush chemical and follow the directions. When flushing, look for water flow in the radiator cap. Replace that thermostat with a new one! replace the coolant cap also. Check for debris on the radiator fins like leaves, plastic bags, mud and bugs.

Posted on Feb 22, 2012

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

After many tries changing coolant sensors ect..on my 2002 trailblazer I have noticed oil in my coolant. Does this mean cracked head?


more likely a blown head gasket remove radiator cap and run vehicle and watch the fill hole if you see bubbles sure sign

Feb 17, 2015 | 2002 Chevrolet Trailblazer Ext

5 Answers

What are signs and symptoms of a blown head?


white smoke out the tailpipe and the smell of anti-freeze in the exhaust gas. an engine that over heats either only at highway speeds or town driving, when all other things like, rad cooling fan working properly, thermostat is working properly, no external coolant leaks. the spark plugs may show signs of coolant on them. just some things that are indicators.

Feb 02, 2015 | 2009 Ford F-150

1 Answer

Symtom of cracked head


Yes that could be a symptom of a cracked head or blown head gasket.

Feb 09, 2014 | Cars & Trucks

1 Answer

Cracked block symptoms


crack block problem would cause engine overheating problems check radiator see if radiator has a leak could have rust in radiator.check for leaking hoses check water pump see if you wet signs where pump leaking at weep hole. if you suspect crack cylinder head.you need to do a cylinder leak detector test using air pressure looking for stream of bubbles in the radiator.

Jul 03, 2013 | Dodge Cars & Trucks

1 Answer

What can cause my engine to overheat driving normal condition?


Hi there:
What about fan relay? Are you losing coolant? Did they check the coolant for signs of a head crack or a gasket failure? (I think they do some chemical analysis to detect exhaust components when no bubbles are evident, you used to be able to buy kits at auto parts stores). A leaking head gasket or cracked head could give you the symptoms you describe.



Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Aug 07, 2012 | Jeep Cars & Trucks

2 Answers

Vehicle overheating quickly. changed thermostat it ran fine for about 2 weeks, now it is overheating quickly again. no leaks are coming from water pump. Do not see any water leaking anywhere, but when it...


Hi, check you have heat coming out the heater in the car put it on hottest setting and see what happens if it comes out cold then the chances are the head gasket has gone and is pushing gasses into the coolant system causing an air lock and then over heating.

check the oil for signs of a white substance look on the oil level stick and also inside the oil filler cap if their is any signs of milky substance then this is proof head gasket has gone.

let me know what you find out ok

Sep 10, 2010 | 2001 Pontiac Montana

2 Answers

Head gaskets


There is really no difference between a blown or cracked head gasket. In either case the gasket would have to be replaced. Generally the term "cracked" is used when referring specifically to the cylinder head/s its/them selves. If the cylinder head is cracked it is a much more expensive repair.

May 17, 2010 | 2000 Chevrolet Cavalier

2 Answers

Focas 1.8 td oil mixing with water


blown headgasket or cracked head

Oct 14, 2009 | 2000 Ford Focus

Not finding what you are looking for?
2003 Jeep Grand Cherokee Logo

261 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

76164 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...