Question about 1992 Buick LeSabre

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How do i know if my car has an engine cooler ?

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Did you mean transmission cooler ? All buick lesabre had at least a trans cooler built into the radatior some had an aux.cooler mounted in front of the condenser witch is in front of the radatior

Posted on Aug 30, 2010


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Posted on Jan 02, 2017


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Where is the oil cooler, cooler/coolant sensor and heater return line located related to replacing the radiator?

Without knowing your make/model/year of car, all I can offer you is a generic answer.
Oil cooler is typically in the bottom of your radiator.
Temp sensor is typically on the engine block.
Heater lines are often on the block, too.

Jun 07, 2015 | Cars & Trucks


How to check you Volkswagen & Audi oil cooler for leaks.

If you own a Volkswagen or Audi and have coolant in your engine oil or oil in your coolant you may have a failing oil cooler. This may have been misdiagnosed as a bad head gasket.

Before spending hundreds or thousands repairing a head gasket that may not be the problem you can perform this relatively easy check of your oil cooler which is a common problem on many Volks/Audi models that use oil filter type of oil cooler. This type of cooler is located between the oil filter and the engine block. The oil filter screws onto the oil cooler. It has two rubber coolant hoses attached to it and is made from aluminum.

The oil cooler works by passing engine oil through the body of the cooler. The engine oil passes over what resembles a radiator inside the cooler. This 'mini radiator' is passing engine coolant in through one of the hoses and out through the other. When working properly the oil and coolant is kept separated. Over time the passages inside the cooler can corrode and the oil and engine coolant inside can mix. This can lead to coolant in your engine oil (which may produce a milky substance on the inside of the oil filler cap) or oil in the coolant (which you may be able to see in the coolant reservoir as a dark ring or oily film).

To test your cooler for leaks you will need a few basic tools and about 3 hour of your time. (To allow for the engine to cool)

-Basic ratchet set and set of screwdrivers.

-One straight 5/8 inch plastic heater hose connector. You can find thisat most auto parts or plumbing supply stores. Cost about $1.

-A pan to catch some coolant that will spill.

This procedure is best done on a lift but can be done using jack stands as well. This MUST be done with a cool engine to avoid burns from coolant.

-Lift or jack the front end of the car. (If you don't know how to safely jack a car onto jack stands, DO NOT proceed any further. Take the car to your repair shop and have them follow these instructions)

-Remove the plastic cover under the front of the car (if your model has this) to expose the oil filter. The oil filter is a cylindrical part that sticks out from the side of the engine.

-The oil filter is screwed into the oil cooler. You will see two rubber hoses connected to the oil cooler.

-Using a flat screwdriver or socket loosen the clamps connecting the hoses to the cooler. Now have the plastic connector handy. Remove the hoses from the cooler, you may need to pry on them with a screw driver.I find that twisting them to break their seal works well. Catch any coolant that spills in the pan.

-Take each rubber hose and push them onto the plastic connector being sure to keep the clamps on the hoses. Tighten the clamps. (Not too tight, just snug) Now you have just eliminated the cooler from the system temporarily.The rubber hoses are now connected to each other.

-Wipe the oil cooler clean with a rag so it is easier to see any leaks that might develop.

-Now start the engine and let it run to normal operating temperature.This means at least 15 minutes but to be sure you find any leaks I suggest half an hour.

-Keep a close eye on the 2 metal tubes on the oil cooler. (The ones you removed the rubber hoses from) You are looking for engine oil to begin seeping out. It will appear golden brown to black in color.

If you see oil coming from those tubes you have found your problem. You will need to buy and install a new oil cooler.

If you don't see any oil leaking you will need to look elsewhere for the trouble. Possibly a head gasket, unfortunately.

-Let the engine cool for a few hours before reattaching the oil cooler. It is the reverse of removal.

-Replace any lost coolant with the same amount you caught in the pan.

And there you have it. A pretty simple procedure that may save you a bunch of cash in repairs.

on Jan 31, 2010 | Volkswagen Golf Cars & Trucks

1 Answer

How to replace oil; cooler on this year

  • Service and Repair
Oil Cooler Replacement

Removal Procedure

  1. Raise and support the vehicle. Refer to Vehicle Lifting.
  2. Drain the engine oil and remove the oil filter housing.

  1. Loosen the oil cooler outlet (1) and the inlet (2) lines from the engine block.
  2. Lower the vehicle.
  3. Remove the intake plenum.
  4. Remove the intake manifold.

  1. Disconnect the following electrical connectors from the water crossover:
    • The engine coolant temperature sender (2)
    • The engine coolant temperature sensor (4)

  1. Remove the water crossover bolts (1).
  2. Remove the water crossover upper and lower seals (2).

  1. Loosen the upper heat shield bolts on the left side of the exhaust manifold.

  1. Remove the oil cooler outlet line from the engine oil cooler.
  2. Remove the oil cooler inlet line from the engine oil cooler.

  1. Note the positioning of the 4 seals.

  1. Position the oil feed and return,lines out of the way and secure with mechanic wire.
  2. Remove the engine oil cooler, inlet and outlet nuts (1).
  3. Remove the engine oil cooler cover bolts (2).

  1. Remove the engine oil cooler cover.
  2. Remove the engine oil cooler.
  3. Clean all sealing surfaces.
Installation Procedure

  1. Install the engine oil cooler.
  2. Apply a 2 mm (0.08 inch) bead of RTV silicone sealant, GM P/N 12346240, in the groove around the engine oil cooler cover.
  3. Install the engine oil cooler cover.
Notice: Refer to Fastener Notice in Service Precautions.

  1. Install the engine oil cooler cover bolts (2). Tighten the engine oil cooler cover bolts to 30 Nm (22 ft. lbs.).
  2. Install the engine oil cooler inlet and outlet nuts (1). Tighten the engine oil cooler inlet and outlet nuts to 20 Nm (15 ft. lbs.).
  3. Reposition the oil feed and return lines.

  1. Install the oil cooler outlet and install the oil cooler inlet lines to the engine oil cooler. Use 4 new seals.
Tighten the oil feed and return lines to 30 Nm (22 ft. lbs.).

  1. Install the water crossover:
    • Position the crossover.
    • Install the upper and lower seals (2).
    • Install the water crossover bolts (1). Tighten
Tighten the water crossover bolts to 30 Nm (22 ft. lbs.).
  1. Connect the electrical connectors at the following locations:
    • The engine coolant temperature sensor (4)
    • The engine coolant temperature sender (2)
  1. Install the intake manifold.
  2. Install the intake plenum.
  3. Raise the vehicle.

  1. Install the oil cooler outlet (1) line to the engine block. Tighten the oil cooler outlet (1) line to 30 Nm (22 ft. lbs.).
  2. Install the oil cooler inlet (2) line to the engine block. Tighten the oil cooler inlet (2) line to 30 Nm (22 ft. lbs.).
  3. Install the oil filter housing to the engine block. Tighten the oil filter housing to 45 Nm (33 ft. lbs.).
  4. Lower the vehicle.

Dec 22, 2014 | 2001 Cadillac Catera

1 Answer

Radiator mix engine oil, what the problem came up???? is't oil cooler spoiler??

some cars crack heads like saturn s series the satun v-6 blows out oil coolers as well as saab v-6 some cars have the intake gaskets leak if it has a oil cooler in the raid it could fail as well don't know what your working on if the oil looks pink check the trans fluid the trans coolers fail as well

Apr 15, 2012 | Beijing BJ Cars & Trucks

3 Answers

We need to know if the radiator has an enigine oil cooler in it so we know which one to buy

if you get under the car on the driver side were the oil filter is and look were the filter screw onto the motor,if you see 2 large lines coming from the plate that the filter screws onto going to the front of the motor and attach to the lower rad then you have an engine oil cooler in the radiator.there will be lines that come from the transmission to the radiator that are considerably smaller.

Sep 16, 2011 | 1994 GMC Safari

1 Answer

I need to know if my car has an engine oil cooler or not. its a 99 dodge intrepid 3.2 liter and knowing this will allow me to replace it sooner and cheaper.

Ii doubt it, most cars do not have oil coolers as thev oil is kept at a moderate temperature by the water jacket of the engine Some high end cars Cadallac. Mercedes Benz etc. may have dual core radiaters where the oil is circulated. See:

Jan 10, 2011 | Dodge Intrepid Cars & Trucks

1 Answer

1999 toyota rav 4 engine oil cooler bolt torque setting

-clean the oil cooler contact surface on the oil cooled mounting
-install a new O-ring to the oil cooler.
-temporarily install the oil cooler with the nut
-apply a light coat of engine oi on the threads and under the head of the relief vale
-install the plate washer and union bolt. torque 78Nm (800kgfcm, 58 ft lbs.)
-tighten the nut,torque 8.8Nm (90kgfcm, 78 inch lbs.)
-connect the 2 water bypass hoses to the oil cooler.


Apr 26, 2010 | 1999 Toyota RAV4

2 Answers

Coolant leaking into the engine oil. I'm guessing

its more than likely either your head gasket or intake gasket. You either have the 3.4 or 3.8 engine and they are well known for these to leak.

Sep 29, 2009 | 1997 Chevrolet Monte Carlo

1 Answer

Don't know how to turn up fuel using the coolant temp sensor

this is my thoughts on the matter .. A cooler engine requires more fuel . So If your running a cooler thermostat or keeping the engine running cooler its going to call for some more fuel than an engine that is running at a higher temp.. Does your car have an adjustable fan or are you saying it has an adjustable temperature sensor ? thanks and holler if you need any more Jerry

Apr 22, 2009 | 1993 Subaru Impreza

1 Answer

I need 2 know how to remove the radiator


  1. Disconnect battery ground cable (14301).
  2. Drain engine coolant.
  3. Remove engine air cleaner (ACL) (9600).
  4. Remove upper radiator hose (8260) from water bypass tube.
  5. Remove radiator overflow hose (8075) from radiator (8005) and fan shroud (8146). NOTE: Loosen transmission oil cooler lines while securely holding radiator connector with a back-up wrench.
  6. Remove transmission oil cooler line from oil cooler inlet fitting.
  7. Remove nuts retaining A/C condenser core to the radiator.
  8. Disconnect engine control sensor wiring (12A581) from the auxiliary electric cooling fan motors and the CCRM.
  9. Raise vehicle on hoist.
  10. Remove splash shield from lower radiator support (16138) and front sub-frame (5C 145).
  11. Remove lower radiator hose (8286) from radiator. NOTE: Loosen transmission oil cooler lines while securely holding radiator connector with a back-up wrench.
  12. Remove oil transmission cooler line from oil cooler outlet fitting on radiator.
  13. Remove retaining screws for power steering/transaxle oil cooler and position cooler aside.
  14. Support fan shroud, radiator and A/C condenser core (19712) with a suitable jackstand. Remove lower radiator support. Position jackstand aside and carefully remove radiator and fan shroud.
  1. Remove two retaining bolts for fan shroud at top of radiator and remove fan shroud from radiator.
  2. Remove upper radiator hose from radiator.
  1. Follow removal procedure in reverse order.
  2. Tighten fan shroud bolts and A/C condenser core nuts to radiator to 3-5 Nm (27-44 inch lbs.) .
  3. Tighten lower radiator support bolts to 8-11 Nm (71-97 inch lbs.) .
  4. Tighten transmission oil cooler lines to fittings to 25-28 Nm (18-21 inch lbs.) .
  5. Tighten power steering/transaxle oil cooler and splash shield retaining screws securely.
  6. Refill engine coolant.

Feb 11, 2009 | 1995 Lincoln Continental

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