Question about 1999 Cadillac DeVille

1 Answer

I have a 1999 cadillac deville thats running hot

I replace the water pump thermostat, and radiator, but it still get hot when i come to a stop or just idleing, cool down when driving. someone told me to bleed my radiator. but how do you do that

Posted by on

  • reco g Mar 22, 2009

    thanks alots this is a very helpful site for people who can't afford to take thier car to a shop

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 837 Answers

Have you replaced the drive belt(s) and/or checked the tightness of same?

Posted on Feb 07, 2009

  • 3 more comments 
  • Jay Glendenning
    Jay Glendenning Feb 14, 2009

    Has this helped? If so I would appreciate a FixYa .. Thanks .. Crayz

  • Jay Glendenning
    Jay Glendenning Feb 21, 2009

    Your symptoms are classic to your fanbelt/drivebelt being loose. Sorry that that isn't the "bleeding" procedure you are looking for but here that is ...

    Park
    the vehicle on level ground, when cold remove coolant filler cap,
    start the engine and leave it idle.

    Turn heater on full and blower to
    max.

    When engine reaches operating temperature watch and listen near
    coolant filler, keep clear as gurgling and hopefully a boil over
    should occur.

    Top off with very warm coolant and wait as it may do it
    again.


    Check
    for heat inside vehicle if warm replace coolant cap but keep an eye
    on temperature gauge because an Air lock may have moved to the heater core, if so ths proceedure needs to be carried out again from COLD.


  • Jay Glendenning
    Jay Glendenning Feb 21, 2009

    And I would appreciate a FixYa rating in exchange for the Inappropriate .. Thanks

  • Jay Glendenning
    Jay Glendenning Feb 25, 2009

    Have you been able to successfully bleed your system yet?

  • Jay Glendenning
    Jay Glendenning Mar 22, 2009

    I would like to again thank you for your decision to use FixYa. I especially appreciate the FixYa rating .. that is what I am here for .. to provide the best help that I possibly can and for that FixYa ... that is the best way that you as a FixYa customer can thank me for my help .. Thanks again and hope to FixYa soon .. Crayz

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I have a 1999 cadillac deville i bought a new water pump new t-stat and it still over heast it goes up slowly.it takes about 20 to 25 min to get up to 230 .i took out the t-stat so the water can always...


The radiator cap may not be holding enough pressure. Also, don't drive without the thermostat. It will mess up the closed-loop operation of the fuel injection system. That trick worked 40 years ago.

Aug 24, 2011 | 1999 Cadillac DeVille

1 Answer

Running hot and heater not coming on


On a 4.9L follow the upper radiator back to the engine. This should be the thermostat housing. The thermostat should be inside.
On a 4.6L the thermostate is in the housing which is near the water pump drivebelts "on the coolant crossover housing". If this is not clean I recommend you buy the Haynes for your DeVille. See page 3-4, illustration 3.14.



Dec 09, 2010 | 1999 Cadillac DeVille

1 Answer

I bought a thermostat from advance auto parts for my 1999 cadillac deville but I was told that it should only be bought from a cadillac dealership but I used it anyway. I put the thermostat on and the car...


Who did all this work?
Was the water pump bad?
Was the radiator, so clogged it could not be cleaned?

What diagnostics was done?

Is the car actually over heating? That is where you start

All that work may have been for not

When you removed the stat,the temp never went up,only the gauge,
can not run a veh without the stat, the temp sensor needs it in there

Is the exhaust converter partially blocked?
Is the engine running rich

Have the data looked at.

Nov 24, 2010 | 1999 Cadillac DeVille

1 Answer

I had the water pump replaced. Is there a relay or a valve that controls the heater, or would a thermostat control it???


i didn't see you last posting about your water pump but theres is a tiny radiator called a heater core. it has the same hot water running through it as your big radiator and engine have.so when you turn your thermostat to hot and kick on the fan the fan blows through the heater core and wallaa you have heat you probably need a thermostat.if you have no heat and it is overheating hear and there that's probably what you need.make sure you see if you filled the radiator up all the way when you changed the water pump.

Nov 18, 2010 | 1998 Cadillac DeVille

1 Answer

My 1996 cadillac deville is running hot. I installed a new water pump and the car still run hot...any suggestions?


did you check the thermostat? how about the fan is it working properly? and finally the radiator did you do a flow test on it?

Jul 15, 2010 | 1996 Cadillac DeVille

2 Answers

Why does my cadillac 1998 deville keep overheating?


Overheating can be numerous things: Fans not working, water pump, thermostat, overflow cap, and the list keeps going. When the engine is running and heats ups, feel the heat of the top hose, if the hose isn't hot, the thermostat is most likely stuck open and needs replaced. If it is hot we know you have circulation. The cap on the expansion tank may be defective, if it can't hold the pressure of the water, it will release at the overflow cap if the cap is bad. Also check the coolant level.

Jan 30, 2010 | 1997 Cadillac DeVille

1 Answer

My 1999 cadillac deville keep running hot, i have replace raditor, this car still running hot


If you have change the radiator , then check the thermostat for its temperature while running . then try to change the engine oil it could be one of the reasons that your car is having a overheat problem.

Aug 01, 2009 | 1999 Cadillac DeVille

2 Answers

Why does my 2001 cadillac deville keep running hot. ive changed the water pump and the thermistat


Well there could be a couple of problems if you live in a hot place you should change the thermostat to a lower tempatured one so the water will circulate sooner that will help it run cooler if that doesn't do it it might need the radiator flushed.

Jul 29, 2009 | 2001 Cadillac DeVille

Not finding what you are looking for?
1999 Cadillac DeVille Logo

880 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts

yadayada
yadayada

Level 3 Expert

61037 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

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

Answer questions

Manuals & User Guides

Loading...