Question about 2002 Cadillac Deville

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Car overheating My 2002 Deville is overheating, one of the radiator hoses exploded and was replaced, i filled the recivour with DEX-COOL and it overheated, checked the thermostat but its fine, a good friend tells me the radiator is not full, but the radiator it self does not have a cap, is there a bleed screw somewhere???

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There should be a cap some where but if not there should be some sort of hose coming out of the top of the radiator pull the hose and fill it up from there, and top it all the way off, make it spill, all the way full! and when an engine over heats it usually ruins the thermostat so i would recomend replacing it also

Posted on Oct 18, 2008

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How do i replace my thermostat on 1998 eldorado


  1. Install the thermostat.
  2. Install the thermostat housing using a new gasket.
  3. Install the thermostat housing bolts. Tighten the thermostat housing bolts to 89 INCH lbs. (10 N.m).
  4. Connect the radiator hose.
  5. Install the air cleaner outlet duct.
  6. Refill the coolant.
  7. Start the engine.
  8. Check for leaks.

Apr 22, 2012 | 1998 Cadillac Eldorado

Tip

How to Flush the Cooling System.


Normally the engine operates at 195F, unless you have replaced the thermostat with another one at 185F. If the temperature has a tendency to rise up, the reason is a partially obstructed cooling system or/and a bad thermostat.The first part of the cooling system that gives up is the heater core, because the coolant flowing channels are thin. It is the time for a coolant flush in your car. To do it right then you need time. Plan ahead for a weekend. With a cooled engine, start with the heater core hoses. Disconnect both of them, but the dirt has to go out of your car, so with a garden hose back flush it and let the dirt to get out of your cooling system. After you will get clean discharge,it is the time for coolant bottle, remove it, discharge the used coolant and clean it. The third to come is the radiator. Open the drain cook, or disconnect the lower radiator hose, and disposal used coolant properly. Now open the radiator cap and flush with water the radiator till discharge will be clear.You think that you are done? Not yet. There is half of old dirty coolant trapped in the system. Install everything, and connect all coolant system hoses, radiator, heater core and coolant bottle. Now you have to run your car with water. Fill out the cooling system with distilled water, start engine, turn on the heater high, and run till upper radiator hose get hot. That means the thermostat opens. Let the engine to cool down, open the radiator cap, and draining cook or lover radiator hose and drain everything. You can use flush detergent, if you wanted, at this stage, but flushing with detergent will add 4 more hours, because the detergent is colorless and you have to guess how many fill and drain processes to do, to get rid of it. I do not do it, but if your cooling system is very dirty you have to do it. After the last drain, fill the cooling system with concentrated antifreeze and 30% distilled water. The reason is because it is more water trapped inside the cooling system. The goal is to reach 50/50concentration. You need a coolant tester to find this. Start the engine and add coolant till radiator is full. Install the radiator cap and bleed the system. After driving you car for a day or so, let engine to cool down, open the radiator cap check the concentration of coolant with the tester, and add antifreeze or distilled water as necessary. It is a good idea to replace the thermostat while flushing the radiator. This procedure has to be done every 2 to 3 years. It is up to you to decide to use RED GM Dex-Cool or GREEN Prestone antifreeze. In all my cars I have replaced Dex-Cool with Prestone, but I flush the system every 2 years, and I never had a cooling system problem in all my cars.

on Nov 14, 2010 | Chevrolet Avalanche Cars & Trucks

2 Answers

Radiator hose leak and anit-freeze types


Problem isn't with plastic, its with aluminum... If you shorten the service intervals "normal" coolant will work equally well but you cannot extend intervals or acid buildup will make short work of radiator, heater core and cylinder head(s). As far as I know, you can get two years from normal coolant but I change out about half every year on my stuff and everything is fine.

Sep 02, 2009 | 2002 Chevrolet Silverado 2500HD

1 Answer

Same problem , car has only 86,000 miles


replace that thermostat again...flush radiator any way...then see how it runs...

Aug 28, 2009 | 1996 Cadillac DeVille

2 Answers

Radiator replacement


  1. Remove air cleaner and duct assembly.
  2. Drain the coolant.
    1. Remove the engine mount struts.
    2. Remove the cooling fans with the cooling fan shroud.
    3. Remove the radiator upper hose from the radiator.
    4. Remove the radiator lower hose from the radiator.
    5. Disconnect the transaxle oil cooler lines from the radiator.
    6. Remove the radiator brackets and bolts.
    7. Remove the radiator. Installation Procedure
    1. Install the radiator. Notice: Refer to Fastener Notice in Service Precautions.
      1. Install the radiator brackets and bolts.
        • Tighten the bolts to 24 Nm (18 ft. lbs.) .
      1. Connect the transaxle oil cooler lines to the radiator.
      2. Install the radiator upper hose to the radiator.
      3. Install the radiator lower hose to the radiator.
      4. Install the cooling fans with the cooling fan shroud.
      5. Install the engine mount struts. Notice: When adding coolant, it is important that you use GM Goodwrench DEX-COOL (R) or HAVOLINE (R) DEX-COOL (R) coolant. If Coolant other than DEX-COOL (R) or HAVOLINE (R) DEX-COOL (R) is added to the system the engine coolant will require change sooner; at 50,000 km (30,000 mi) or 24 months.
      6. Fill the cooling system.
      7. Install the air cleaner and duct assembly.

Jun 28, 2009 | 2000 Chevrolet Venture

1 Answer

Replaced water pump. thermostat. radiator, filled with dex col, still overheating This is a 2001 Cadillac Northstar engine


Try backflushing,if this doesn't solve the problem,..then it could be the distributor,they can make the car run hot if the are going out.

Apr 08, 2009 | 2001 Cadillac DeVille

1 Answer

I replaced the alternator on my 2003 Range Rover


I Suspect that you have AIR in your COOLING SYSTEM Fallow Procedures BELOW to Insure there is NO AIR IN COOLING SYSTEM


Draining and Filling Cooling System

Draining Procedure

Important: Do NOT add any engine coolant supplement sealant pellets to the cooling system. Drain and refill the engine cooling system every 5 years or 240,000 km, (150,000 mi) , whichever occurs first.

  1. Park the vehicle on a level surface.
  2. Remove and clean the coolant recovery reservoir.
Caution: Refer to Radiator Cap Removal Caution in Service Precautions.

  1. Remove the radiator cap when the engine is cool:
3.1. Slowly rotate the cap counterclockwise to the detention tab. Do not press down while rotating pressure cap. 3.2. Wait until any residual pressure, indicated by a hissing sound, is relieved. 3.3. After all hissing stops, press down on the radiator cap and rotate the cap counterclockwise in order to remove the cap.
Important: Recover and store used coolant in a used coolant holding tank and submit the used coolant for recycling on a regular basis. Do NOT pour used coolant down the drain. Ethylene glycol antifreeze is very toxic. Disposing of ethylene glycol into the sewer system or ground water is both illegal and ecologically unsound.

  1. Place a drain pan under the radiator drain valve in order to collect all of the used coolant.
  2. Open the radiator drain valve located at the bottom of the radiator tank. If only partial cooling system draining is required, drain enough coolant to perform the procedure.
  3. Open the air bleed valve on the thermostat housing 2 full turns
    1. Open the air bleed valve above coolant pump 2 full turns.
    2. Place a drain pan under the engine block drains in order to collect the used coolant.Important: Allow the coolant to drain completely.

      1. Remove both of the engine block drains.
        • The front left engine block drain is located between the starter motor and the engine oil filter.
        • The rear right engine block drain is located near the crankshaft position sensor.
      Filling Procedure
      Reinstall the engine block drains
    3. Close the radiator drain valve,
      1. Install the coolant recovery reservoir. Notice: When adding coolant, it is important that you use GM Goodwrench DEX-COOL or HAVOLINE DEX-COOL coolant. If Coolant other than DEX-COOL or HAVOLINE DEX-COOL is added to the system the engine coolant will require change sooner; at 50,000 km (30,000 mi) or 24 months.
      2. Slowly add a 50/50 mixture of GM Goodwrench DEX-COOL or HAVOLINE DEX-COOL and clean, drinkable water to the radiator until the coolant level is at the base of the radiator fill neck.
      3. Wait for 2 minutes and reinspect the level of the coolant in the radiator. If necessary, add coolant to the radiator until the coolant level is at the base of the radiator fill neck.
      4. Install the radiator cap.Ensure that the radiator cap arrow points toward the radiator overflow tubeImportant: The air bleed valves are brass. Do NOT over-tighten the air bleed valves.

        1. Close the air bleed valve above the coolant pump.
          1. Close the air bleed valve on the thermostat housing.
          2. Fill the coolant reservoir with a 50/50 mixture of GM Goodwrench DEX-COOL or HAVOLINE DEX-COOL and clean, drinkable water. Caution: Refer to Radiator Cap Removal Caution in Service Precautions. Important: If the coolant temperature indicator turns ON, turn the engine OFF immediately and allow the engine to cool. Do NOT remove the radiator cap.
          3. Start the engine and allow the engine cooling fan to cycle on and off 3 times. If the low coolant indicator does not turn OFF and the coolant level is above the Full Cold mark on the coolant recovery reservoir, refer to Engine Coolant Temperature Gage Inaccurate or Inoperative.
          4. Turn off the ignition.
          5. Allow the engine to cool.
          6. Ensure that the engine coolant concentration is sufficient.

Feb 21, 2009 | 2001 Pontiac Aztek

3 Answers

My 98 chevy venture overheats


Sounds like the old Dex-Cool problem. Check the level of the coolant in the radiator "not" the overflow bottle. If the intake or head gaskets haven't cooked yet you may be ok. Fill the radiator to its filler neck, remember to let the air out of the system by opening the bleeder screw located on the plenum inlet hose just forward of the radiator cap. Replace your radiator cap ! Make sure the return hose from the radiator overflow bottle is not kinked. Finally check your oil fill cap to make sure your not foaming from water in the oil.
If you're lucky you may be fine with this relatively cheap fix, otherwise you're looking at gaskets. Good Luck !

Jan 07, 2009 | 1998 Chevrolet Venture Cargo

1 Answer

1999 Lumina 6-cylinder: which antifreeze can/must I use?


If your car is supposed to take Dex-Cool, it should say somewhere in the front of the car under the hood, usually near the radiator or on it.

IF it does take Dex-Cool, do not use anything but that in your cooling system.
Mixing any other antifreeze with Dex-Cool causes them to react with each other and corrode your radiator and hoses with a rust-like material.

Dec 17, 2008 | 1999 Chevrolet Lumina

1 Answer

Car overheating, Cadillac Deville


maybe it is cloged up. also check the fans. and the thermastat. and temp sensor.

Nov 21, 2008 | 2002 Cadillac Deville

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