Question about 1998 Cadillac DeVille

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My question is i had recently changed alternater,radiator,water pump and thermostat,starter,pressurecap,tension belt kit and my car still overheating? what else can it be??

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I have a 1997 Cadillac Deville Limousine which gets up to 220 or 230 deg. F on hot days, but that's considered normal.

I just had the water pump changed and the system flushed.

How hot is your engine getting?

Also, is your electric fan turning on to cool the radiator on a regular basis?

Is your car getting to the point where the Northstar engine alternates firing cylinders so that it brings in fresh air to cool down the engine in the case of losing all antifreeze?

Is it boiling over?

I am assuming that there are no leaks in your system since you had a water pump (hard to do) and radiator replaced.

I hope this helps.

Posted on Aug 03, 2010

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Posted on Jan 02, 2017

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2006 Chevy express van. Normally runs one mark below 1/2 mark. Lately ocassionally goes 1-2 marks above half way (usually when sitting idling). Have had coolant changed (Chevy dealer) and new radiator cap...


You've already eliminated #3 and #6, so keep checking...

Priority Action Part Type Cause
1 Inspect Radiator Cooling System Clogged.
2 Inspect Radiator Radiator Fins Obstructed.
3 Inspect Radiator Cap Worn or Damaged Radiator Cap.
4 Inspect Radiator Fan Motor Faulty Fan Motor.
5 Inspect Belt Incorrectly Routed, Adjusted (Tensioned), Missing or Worn Drive Belt(s).
6 Inspect Thermostat Faulty Thermostat.
7 Inspect Water Pump Worn, Cracked or Leaking Water Pump.
8 Inspect Radiator Fan Relay Intermittent Failure

Jul 16, 2011 | Chevrolet Express Cars & Trucks

1 Answer

How to change the water pump on a toyota camry le 1994 v6


You will need to go through the proceeder that you would to do a timing belt. Remove the drive belts, upper engine mount and bracket,jack the car up and place a jack stand under the car. Remove the harmonic balancer, then both of your timing belt covers. Drain the radiator,and start unbolting the water pump. Loosen the tensioner for the timing belt and remove the belt. You should be able to remove the remainder of the waterpump bolts and replace the pump. I would also recommend that you check your roller bearings,tensioner for any leaks, and replace them all if you have high miles on your car. Parts stores can get you a kit that carries the pump, belt,tensioner,and pulleys if needed.Hope this helps. Might have left out a step or two, but if something is in the way obviously you will have to move it.

Nov 04, 2010 | 1994 Toyota Camry

1 Answer

Just need to know were the water pump on montero sport 1998 3.0 Ls engine????


It's under the timing cover on the front of the engine. I have pasted autozone.com instructions to replace the water pump below.


3.0L & 3.5L Engines

  1. Before servicing the vehicle, refer to the Precautions section.
  2. If necessary, properly release the fuel pressure.
  3. Drain the cooling system.
  4. Remove or disconnect the following:

    Negative battery cable
CAUTION Wait at least 90 seconds after the negative battery cable is disconnected to prevent possible deployment of the air bag.

Upper radiator shroud Accessory belts Air conditioning compressor tensioner pulley, if equipped Cooling fan and clutch assembly and the water pump pulley Thermostat and housing on 3.0L, 3.5L engines Water outlet, gasket and houses Radiator hoses from the water pump Crankshaft pulley(s) Timing belt covers. If the same timing belt will be reused, mark the direction of the timing belt's rotation, for installation in the same direction. Be sure the engine is positioned so the No. 1 cylinder is at the TDC of its compression stroke and the sprockets timing marks are aligned with the engine's timing mark indicators. Timing belt Water pump bolts are different lengths, note their positions before removing. Water pump from the block Water pipe connection and O-ring

To install:
  1. Clean and dry the mating surfaces of the block and water pump
  2. Install or connect the following:

    New O-ring on the water pipe connection, wet the new O-ring with water to aid in installation Water pump, with a new gasket, Torque the bolts to 17 ft. lbs. (23 Nm) on 3.0L and 3.5L engines Alternator bracket bolt to 17 ft. lbs. (23 Nm) Timing belt(s) and covers Crankshaft pulley(s) Thermostat and housing on 3.0L, 3.5L engines. Torque the bolts to 12-14 ft. lbs. (17-20 Nm). Radiator hose to the water pump Water outlet, new gasket and houses. Torque the bolts to 12-14 ft. lbs. (17-20 Nm). Water pump pulley Cooling fan and clutch assembly Air conditioning compressor tensioner pulley, if equipped Accessory belts Upper radiator shroud Thermostat and housing on 3.0L, 3.5L engines Negative battery cable
  3. Refill the radiator with coolant. This cooling system has a self-bleeding thermostat, so system bleeding is not required.
  4. Run the vehicle until the thermostat opens and fill the overflow tank. Check for leaks.
  5. Once the vehicle has cooled, recheck the coolant level.

Oct 26, 2010 | 1998 Mitsubishi Montero Sport

1 Answer

How do I change a water pump on a 2004 kia sorento?


Kia Sorento 2003-05
Water Pump - Removal & Installation
  1. Before servicing the vehicle, refer to the precautions at the beginning of this section.
  2. Drain the cooling system.
  3. Disconnect the negative battery cable.
  4. Remove the drive belt and the water pump pulley.
  5. Remove the timing belt cover, timing belt, auto tensioner and idler pulley.
  6. Remove the water outlet fitting, the thermostat case and the water pump fitting.
  7. Remove the water pump mounting bolts.
  8. Remove the water pump.

  9. dc45c19.jpg

    Fig. Water pump and timing belt assembly-exploded view

To install:

1016213.jpg

Fig. Water pump bolt locations
  1. Clean the gasket surfaces of the water pump body and the cylinder block.
  2. Install the new water pump gasket and pump assembly. Tighten the bolts to 12-16 ft. lbs. (17-22 Nm).
  3. Install the water pump fitting, the thermostat case and the water outlet fitting.
  4. Install the auto tensioner and timing belt. Adjust the timing belt tension, then install the timing belt cover.
  5. Install the drive belt, water pump pulley and then adjust the auto tensioner.
  6. Refill the coolant.
  7. Run the engine and check for leaks.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Drain the cooling system.
  3. Disconnect the negative battery cable.
  4. Remove the drive belt and the water pump pulley.
  5. Remove the timing belt cover, timing belt, auto tensioner and idler pulley.
  6. Remove the water outlet fitting, the thermostat case and the water pump fitting.
  7. Remove the water pump mounting bolts.
  8. Remove the water pump.

To install:


e9be8c3.jpg

Fig. Water pump bolt locations

596080e.jpg

Fig. Water pump O-ring installation
  1. Clean the gasket surfaces of the water pump body and the cylinder block.
  2. Install the new water pump gasket and pump assembly. Tighten the bolts to 12-16 ft. lbs. (17-22 Nm).
  3. Install the water pump fitting, the thermostat case and the water outlet fitting.
  4. Install the auto tensioner and timing belt. Adjust the timing belt tension, then install the timing belt cover.
  5. Install the drive belt, water pump pulley and then adjust the auto tensioner.
  6. To adjust the drive belt tension, hang the belt on the pulley of the tensioner and install the tensioner.
    NOTE If the tensioner is already installed, loosen its mounting bolts to allow belt installation
  7. Install the drive belt.
  8. Adjust the belt tension to specification by turning the adjusting bolt clockwise or counterclockwise.
  9. Air conditioning belt tension should be 0.28-0.039 inch. Alternator belt tension should be 0.39-0.051 inch. Power steering belt tension should be 0.31-0.051 inch.
  10. Torque the tensioner assembly bolt to 33-36 ft. lbs. (45-50 Nm).
  11. Refill the coolant.
  12. Run the engine and check for leaks.

TY for using Fixya; remember comment and rated this.

Apr 01, 2010 | 2004 Kia Sorento

1 Answer

Dont know where thermostat goes. engine overheating, coolsnt not cycling.


The thermostat is bolted into the bottom of the water pump, the lower radiator hose connects to a cover that holds the thermostat to the water pump.

the thermostat can be difficult to get at because the AC and power steering pump are all bolted on top of the water pump,

Your problem may not be a bad thermostat.
I would also check:

1) water pump, some of the vw pumps are poorly made & tend to go bad.

2) fans belts, it can be tricky to get the right tension on these belts due to a badly designed tensioner system on the power steering & water pump belt.

3) hoses, radiator, coolant tank,. the radiators and coolant tank tend to leak when they get old, the plastic cracks or the rubber seals go bad.
Also check the electrical system controlling the engine cooling fans. there are sensors and relays that can go bad.
I have owned 8 vw's most of the major problems with these cars was due to electical problems.

4) Engine problems such as a blown head gaskets, or ignition timing problems can cause overheating. luckily VW engines usually don't have these problems, unlike other companies 4 cylinder engines (the Dodge Neons for example)



Jun 19, 2009 | 1997 Volkswagen Jetta

2 Answers

Running hot


Check the Tension on the Belt. If it is not tight enough or you need a New Tensioner for the Belt, It will run hot. It is not letting the Water Pump Cool the Motor fast enough. You might also Check the Radiator. If the Radiator is Even a Little Clogged, It will overheat. Also, Check the Fan clutch, If it is not working Properly, You will overheat. Let me know what you find!

Jan 24, 2009 | 1996 Chevrolet Cavalier

3 Answers

Car overheat frequently and at time the engine sound is very loud


Several things can cause this overheating. Have you recently done a:
1. Check Hoses for Leaks
2. Check Radiator for Leaks --- Also, Change Radiator Cap ( can loose pressure there if
cap is bad)
3. Check Water Pump for Leaks. If Water Pump is bad, you will hear a loud noise from it
4 Complete Tune Up? Should be done at least 1x a Yr. Depending on how much you drive the Vehicle. Includes: Plugs, Plug Wires, Gas Filter, Air Breather Filter, PCV Valve, Adjust Timing,
Check Belts -- see if worn
5. Changed your Thermostat & Gasket and have the correct degree Thermostat in the Vehicle?
6.. Had your Radiator Rod and Cleaned out?
7. Temperture Sending Unit (located near Thermostat) could be bad
8. 02-Sensor (Generally located in the Exhaust Manifold - needs a socket with a space in it
to allow the Socket to fit over this top wire of the 0-2 Sensor )
9. Change oil and oil Filter.
10. Change Gas Tank Cap ---

Do all this yearly ( except the Radiator Rod & Clean ( do every 2-3 yrs), and you should not have
any over-heating nor stalling out, etc. and should pass emissions as well.

Nov 25, 2008 | Hyundai Elantra Cars & Trucks

1 Answer

Car is overheating


2 Inspect Belt Incorrectly routed, adjusted, tensioned, missing, or worn water pump belt(s). grey_line.gif 3 Inspect Oil Pan Gasket - Performance Ruptured, cracked or leaking radiator hose. grey_line.gif 4 Inspect Radiator Cap Worn or damaged radiator cap grey_line.gif 5 Inspect Thermostat Thermostat stuck closed grey_line.gif 6 Inspect Fan Blade Broken, missing, or defective fan blade(s). grey_line.gif 8 Inspect Water Pump Damaged, worn or leaking water pump. grey_line.gif 9 Inspect Intake Manifold Plenum - Perform Leaking water pump gasket. grey_line.gif 10 Inspect Cooling Fan Control Faulty cooling fan control or circuit. grey_line.gif 11 Inspect Cooling Fan Switch - Radiator Faulty radiator cooling fan switch or circuit. grey_line.gif 12 Inspect Engine Temperature Sensor Faulty engine temperature sensor or circuit. grey_line.gif 13 Inspect Temperature Switch Damaged or faulty temperature switch or temperature switch circuit. grey_line.gif 14 Inspect Fan Clutch Worn, loose or faulty fan clutch. grey_line.gif 15 Inspect Ported Vacuum Switch Damaged, leaking, or faulty ported vacuum switch. grey_line.gif 16 Inspect Radiator Obstructed radiator core or radiator cooling fins. grey_line.gif 17 Inspect Head Gasket - Performance Head gasket leaking coolant into cylinders here is a list of things to check Shaun

Nov 17, 2008 | 2000 Cadillac DeVille

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