Question about Cars & Trucks

1 Answer

Corvette troubleshooting hey i have a problem driving me nuts, please help. I changed my waterpump and thermastat on 2000 c5 corvette 5.7 at first it ran good temp at dead center then it started creeping to overheating with bubbles in the rad cap. I took the thermastat out boiled it it only opened a 1/4 inch if that and it took 3 min to do that boiling water. now i put another thermastat in the car and i have more air bubbles and creeping hot. ive been told i have to bleed the system. i tried to remove heater hoses and nothing but hot air a minimum cooland, i didnt even have heat. after i removed both hoses from the side of the water pump one to res, other to heater core are ran dead center and i have heat. is there another way to bleed this car i keep having this creeping hot problem not happy.

Posted by Anonymous on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Cars & Trucks Master
  • 3,828 Answers

If no air in the system from internal heater or other places
new thermostat and radiator cap
good firm coolant hoses

old school air bleed
you fill coolant system with motor running
heater on in the car and thermostat open

burp the hoses until bubbles are no more

if still no better
what about these possibles
faulty coolant temp sender
head gasket failed
clogged radiator
cooling fans not spinning fast enough
or not coming on soon enough

Posted on Mar 20, 2017


6 Suggested Answers

  • 2 Answers

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

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.
Good luck!

Posted on Jan 02, 2017

  • 120 Answers

SOURCE: overheating

Yes, you re correct! thats a thermostat issue.

Posted on Dec 15, 2008

  • 318 Answers

SOURCE: engine overheats when heater pipes connected

I think you could be right about there being air trapped in the system.
Or the heater core(radiator) is plugged.
Either way you need a pressurized radiator coolant pump to put the coolant in without air being trapped.
Although,i have seen it done by jacking the vehicle up high enough that the radiator was now higher than the heater core level, and then the coolant was put in.
But this is dangerous to try.

Posted on Jan 29, 2009

  • 125 Answers

SOURCE: 1995 toyota 4runner gets hot with new thermastat gasket

the thermostat should be closed when you take it out, therefore the thermostat is bad. It does not closed.

Posted on May 22, 2009

  • 181 Answers

SOURCE: my car ran hot. i replaced the water pump and the

radiator goes bad ,also when car over heats,there for change radiator,if still the same then ,you blew the head gaskets to the engine,need to replace also,bleeder valve to be done by a shop

Posted on Oct 31, 2009

  • 1111 Answers

SOURCE: I have a 98 dodge 1500 5.9 with 180k.Changed the

your sure you installed thermostat correctly and no leaks around it ...are both top and bottom hoses hot going into and out of the heater-core and all fluid temps are at specified levels ...
you may also have an air bubble which when back-flushing may occur was the vehicle getting heat prior to reinstalling another thermostat / and while fluid was replaced into the radiator circulation /flow of exchange from the motorto the radiator are presenty working no vacuum lines are dry-rotted causing a vacuum leak ..hmmm you can hear the heater flaps open and change from the dash defrost to floor to vents etc ok that sounds like its working but check with the cap off to the radiator for proper fluid levels and that the fluid is exchanging and both the top and botto hose into and out the firewall are hot if the top is hot and the bottom one is coldyou may still have a lot of sediment /gunk in the core itself and reflushing the core is required and remember not to use full force when doing so or you risk rupture to the unit /core with the motor off remove the 2 hoses face the bottom or top on towards the catch pan because its illegal to disburse it onto the ground and whether your back flushing it or just running the water through you will also dislodge the air bubble as it fills with water after your sure the above is all looked into check to ensure the flow of fluid is present ...this is my starting point on your issue ...

Posted on Dec 16, 2009

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Where is the thermastat on a 2000 cadillac eldorado

follow the upper radiator hose to motor next to waterpump ,im guessing you have the north star motor.

Aug 11, 2014 | 2000 Cadillac Eldorado

1 Answer

Wont start when hot

If you recently had a waterpump replaced or leaking, i would say its the opti spark distributor. Main problem with the LT1 engines the water leaks all over distributor that sits behind pump causing the start no start up. When ever you change the waterpump always include the opti spark and wired connector.

Aug 08, 2014 | 1994 Chevrolet Corvette

1 Answer

I wanna know how to change waterpump

Remove drive belt. Remove all coolant, remove hoses to water pump, Remove all screws from water pump, remove gasket from hard surface, use permatex gasket sealer on both sides of waterpump gasket and apply to engine side, then waterpump, hold water pump in place until all water pump nuts screws are installed, use torque wrench, no more the 10 ft lbs. The rest is the reverse of uninstallation.

Apr 04, 2011 | 1994 Lincoln Town Car

1 Answer

The car was running fine and suddenly made a loud noise like water gurgeling all warning lights about water temp came on is it the thermastat

Sorry, not the thermostat. Check the coolant level and refill and locate the leak. I suspect the waterpump, make sure the belt is turning the waterpump. Do not drive an overheating engine.

Feb 24, 2010 | 2002 Saturn VUE

2 Answers

On my 2000 corvette conv. the right brake light failure

sounds like ground problem, ground for brake lights r in drivers side rear about 1 foot from drivers side brake light .

Jun 04, 2009 | 1999 Chevrolet Corvette

1 Answer

Water pump chang on mitsubishi Galant 2.5 V6

Waterpump replacement requires removal and replacement of your timing belt. Because of this it is not your typical do it yourself repair. Engine timing is critical, and not having your belt set correctly can lead to catastrophic engine damage.

You can purchase a service manual at your local parts store to get an idea of what is involved, however this being an interference engine you should leave this job to a professional if you are uncertain enough about your abilities that you need to ask for help on it. The cost to replace the waterpump is far far less than the cost to repair a engine that had an incorrectly set timing belt.

Mar 13, 2009 | 2000 Mitsubishi Galant

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

61 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts


Level 3 Expert

77932 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

14403 Answers

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

Answer questions

Manuals & User Guides