Question about 1996 Volvo 850

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Cooling sysem leak

If I add coolant to the overflow reservoir, it disappears in short order.  No evidence of a leak in engine compartment ------  water drips from drain sheet metal just ahead of the rear tires --- where do I look for a leak??

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  • DCovita Oct 03, 2008

    1996 volvo 850. leaks clear water on passenger floor under dash. I looked and can't see where it comes from, also when my air conditioner is on i hear alot of water,coolant under dash sluching around. Can anyone help me. DCovita@hotmail.com

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Asdga

Posted on Jul 06, 2009

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Leak found at heater.  Most of coolant added in attempts to locate leak was retained on the floor of the passenger compartment --- hence the disappearing coolant phenomenom. About 5 gallons of water were obtained with wet vac of region under floor carpet. Thanx to those who considered the problem.

Posted on Sep 06, 2008

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2 Answers

Losing coolant


Wait for the cooling system to cool down. Remove the radiator cap, start engine and watch for bubbles in the tank. If you have bubbles the possibilities of a bad head gasket is suspected. To verify a suspected head gasket, leave the radiator cap on and tighten. Start the engine, using a heavy towel or rag loosen the radiator cap SLOWLY. If pressure is evident only after a minute of running.....=Blown head gasket!

Jan 22, 2014 | Chevrolet Malibu Cars & Trucks

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Ok ..continuing to have a overheating prob. w/a 2005 Lincoln LSV8...refilled the coolant tank (used mostly water) started her up and let it idle for 15-20 min. it did lose coolant from some where under the...


First there is but one water pump, next did you bleed the air out of the cooling system as directed in the factory manual? If you did then the engine may have a leaking head gasket. Water pump picture below. You may also have a leak in the recovery tank, but that would not cause the overheating unless you let it run dray. This engine is very easy to damage if overheated, think you should let an expert look at this problem.
9_20_2012_11_32_33_pm.jpg

Sep 20, 2012 | 2005 Lincoln LS V8

1 Answer

Coolant disappearing


If you are adding coolant every week, and you don't see any external leaks, the coolant is probably being burned thru the engine.
You can burn a couple of quarts a week and not see any smoke.
At some point in time you could pull the spark plugs and find evidence from the burning coolant.
Most common cause is a leaking head gasket or intake gasket.

Aug 08, 2012 | 2002 Chevrolet Malibu

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How to change a radiator


1988–91 Models
  1. Disconnect the negative battery cable.
  2. Properly drain the cooling system into a suitable container.
  3. Disconnect the fan motor and motor connector.
  4. Disconnect the upper and lower radiator hoses.
  5. Disconnect and plug the automatic transaxle cooling lines at the radiator, if equipped.
  6. Disconnect the coolant reservoir overflow hose.
  7. Remove the radiator attaching bolts and brackets.
  8. Remove the radiator with the cooling fan attached.
  9. Remove the cooling fan and shroud from the radiator. NOTE: Check all cooling system hoses for any signs of damage, leaks or deterioration and replace if necessary. To install:
  10. Attach the cooling fan and shroud to the radiator and install the assembly.
  11. Attach the radiator bolts and brackets. Tighten the radiator bracket bolts to 7 ft. lbs. (10 Nm).
  12. Connect the coolant reservoir overflow hose.
  13. Connect the automatic transaxle cooling lines to the radiator, if equipped.
  14. Connect the upper and lower radiator hoses.
  15. Connect the fan motor and thermo-switch wire connector.
  16. Refill the system with the proper type and quantity of coolant, check for leaks and bleed the cooling system.
  17. Reconnect the negative battery cable. Fig. 7: Cooling system components — 1988–91 engines 86833085.gif
1992–95 Models
  1. Disconnect the negative battery cable.
  2. Properly drain the cooling system into a suitable container.
  3. Disconnect the fan motor and motor connector.
  4. Disconnect the upper and lower radiator hoses.
  5. Disconnect and plug the automatic transaxle cooling lines at the radiator, if equipped.
  6. Disconnect the coolant reservoir overflow hose.
  7. Remove the radiator attaching bolts and brackets.
  8. Remove the radiator with the cooling fan attached.
  9. Remove the cooling fan and shroud from the radiator. NOTE: Check all cooling system hoses for any signs of damage, leaks or deterioration and replace if necessary. To install:
  10. Attach the cooling fan and shroud to the radiator and install the assembly.
  11. Attach the radiator bolts and brackets. Tighten the radiator bracket bolts to 7 ft. lbs. (10 Nm).
  12. Connect the coolant reservoir overflow hose.
  13. Connect the automatic transaxle cooling lines to the radiator, if equipped.
  14. Connect the upper and lower radiator hoses.
  15. Connect the fan motor and thermo-switch wire connector.
  16. Refill the system with the proper type and quantity of coolant, check for leaks and bleed the cooling system.
  17. Reconnect the negative battery cable. Fig. 8: Cooling system components — 1992–95 engines 86833086.gif
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Aug 27, 2010 | 1991 Honda Civic

1 Answer

How do I add refridgerant to my 2000 corolla


Check this procedure to add and check Coolant level...

Warning: Do not attempt to remove the radiator pressure cap or expansion tank cap when the engine is hot, as there is a very great risk of scalding. Do not leave open containers of coolant about, as it is poisonous.

Car Care
• With a sealed-type cooling system, adding coolant should not be necessary on a regular basis. If frequent topping-up is required, it is likely there is a leak. Check the radiator, all hoses and joint faces for signs of staining or wetness, and rectify as necessary.

• It is important that antifreeze is used in the cooling system all year round, not just during the winter months. Don't top up with water alone, as the antifreeze will become diluted.


97a94a2.jpg

1. The coolant reservoir is located on the left-hand side of the engine compartment. The coolant level is visible through the reservoir.

2. If topping-up is necessary, wait until the engine is cold and remove
the cap from the reservoir. Add a mixture of water and antifreeze to the reservoir until the coolant is at the correct level. Refit the cap and tighten it securely.

Hope helps (rememnber rated this).

Jul 08, 2010 | 2000 Toyota Corolla

1 Answer

Have new radiator, water pump hoses, belts; system has been bled; experimented with bypassing the heater core; thermostat removed...car still overheats. Also, coolant goes to the overflow bottle, but often...


The reservoir,and,or,the tubing from the radiator,to the reservoir may have a pin hole in it,or the tubing is sucking together.Replace the tubing,and the radiator cap,and the reservoir top.See if it will work correctly.Fill reservoir,and radiator,and let it run until the cooling fans cut on,then cut the engine off.Wait about 25 minutes,and see if the reservoir will drop in level,if so,repeat this process until the vehicles cooling system is normal.Make sure the cooling fans are coming on,and going off,with the ac off.If the cooling fans are coming on,then that is good,but,they must go off by them selves,or the cooling system is not cooling down.

Nov 24, 2009 | 1997 Isuzu Rodeo

2 Answers

I cannot seem to locate the radiator and where I can put water in. Someone help!


The radiator is that flat panel shaped object in the front-most center of the engine compartment. You don't add coolant and water directly into the radiator. On the right side of the engine compartment is a plastic overflow reservoir with a blue cap. That's where the coolant/water mix goes. Run the engine while adding coolant and water. There are fill marks on the reservoir indicating how much coolant/water mix is required. With the engine running, if the radiator is very low on coolant it will repeatedly draw fluid from the reservoir. Continue to add coolant/water mix until the situation stabilizes and the reservoir is filled to the high fill mark.

Oct 22, 2009 | 2000 Daewoo Leganza

3 Answers

Radiator over heating,running on hot.with steam comming out overflow.temp gadge up and down on temp.car still running and starts.


Check coolant level when cool. Make sure cooling fan at rad is working, and then I'd change thermostat.

Apr 25, 2009 | 1991 Lexus ES 250

1 Answer

2002 yukon


Your description may actually be your answer, so to speak. You mention 'generally as engine is cooling or if coolant is added too quickly'. It sounds to me like the reservoir is over-filled.
When the engine is cooling, coolant tends to flow back to the reservoir (plastic 'jug' where you add coolant). A bad radiator cap or one that was replaced with too low a PSI rating can easily allow too much to fill the reservoir and and occasionally overflow it. Most reservoirs use a rubber tube to drain excess coolant so it may appear to 'leak' near the front left wheel or left side of engine.
Replace your radiator cap. (did they pressure test the cap too?)
Make sure you check your owner's manual for the proper PSI. My sources show 15-16psi, but that sounds a little high to me. Also, make sure you have the correct (50/50) anti-freeze/water mixture.
After you replace the cap, make sure the reservoir has the right amount of coolant and isn't over-filled. (To 'fill cold' line) Drive the engine until hot, then park the truck and see if the problem is fixed. Good Luck!

Oct 31, 2008 | 2002 GMC Yukon XL

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