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oil in radiator coolant[ALL/1998] posted by s.w. chan on
Sunday, 11 May 1997, at 5:01 p.m.

I bought a 3-year old 940gla which registered a mileage of approx. 11500 km. from the local volvo dealer in my city area about 2 months ago, on the second day of use, the car stalled due to overheating, it was tolled back to the dealer's workshop for repair. No service report was given to me when the car was returned. When i used it again later,there was overheating again. Having spoken to the manager, i was promised a thorough check, this time the car was in the workshop for a week.The radiator and most of the connecting hoses were changed. During collection, i noticed a layer of oil in the radiator coolant reservior, i was informed that it was a minor matter. I am doubful as i notice the amount of oil seem to be getting thicker ! As i am using the car for long distance travelling, i am worry of another breakdown again ! i have not approach the local dealer yet as i am unhappy with the service they provide being a local representative of Volvo. Please enlighten me on the possible causes of this problem. i would appreciate your reply in e-mail ! Thank -you !


Re: oil in radiator coolant[ALL/1998] posted by Stoney on
Sunday, 11 May 1997, at 9:57 p.m.

Sounds to me like you have a blown head gasket. If you overheated the engine, the head is probably warped and There seems to be a steady supply of oil into the coolant so they have not fixed the problem.

There could be contamination of the coolant passeges with oil and that it is working its way out but still there is cause for concern. If the car is conatantly overheating then it has a problem eith the cylinder head. They might have tried to mill the head level and did not succeed.

Take it back and get the Dealership owner and the regional Volvo people involved. I would suspect that they would take the car back and get you a similar car as replacement or swap in a rebuilt engine and call it even. Whatever there is still contamination of the cooling system and all the cooling stuff should be swapped for new as well.

Definately get the owner and Volvo involved! This is not good for them or dealer. BE PREPARED TO MAKE SOME NOISE IF NEEDED! REMEMBER THE SQUEAKY WHEEL GETS THE GREASE!


Re: oil in radiator coolant[ALL/1998] posted by Mark Klein on
Thursday, 15 May 1997, at 10:42 p.m.

Hard to say exactly what had happened without knowing more facts. It's not uncommon for the transmission cooler to rupture (its inside the radiator) and get "oil" in the coolong system. It can be VERY difficult to get all the oil out of a cooling system after a repair of this type. The best thing I have found is to use "Shout" laundry stain remover (the liquid. Porsche had some oil cooler problems with their 944 models years ago and the factory recommended method for cleaning the residue was to pour in a bottle (12-16oz?) in the coolong system and run the car for 30 minutes or so and then flush the cooling system thoroughly. I have done this with good results on Volvos.

If the original problem is fixed (is it still overheating?) they at least need to get the residue out. The oil WILL soften ALL the rubber components in the cooling system (hoses, water pump top seal, heater pipe seal, and radiator thermoswitch grommet).

And the "squeaky wheel gets the oil" scenario labels you as a flaming asshole and won't get a sgood a result as rational conversation with the correct people (often the owner of the dealer).

Good Luck

Mark Klein


Re: oil in radiator coolant[ALL/1998] posted by Joe Bosco on
Thursday, 12 June 1997, at 8:23 p.m.

Mark: From your answer to the oil in radiator coolant problem you probably can help me.

I was informed that my radiator for my 1989 240 DL is getting tired. Is it typical for a radiator to have hard failures

without warning? It does not leak, however when the A/C is on the engine heats up... I was told that there was a

blockage in the a/c system causing the compressor to work harder causing the heat problem. My biggest concern

is having a major radiator problem (hard failure) while driving. The car has been driven 89k. Any advise? Thanks.


Re: oil in radiator coolant[ALL/1998] posted by Mark Klein on
Thursday, 12 June 1997, at 9:29 p.m.

Hey Joe, That is a typical symptom for a radiator blockage. Not the type you may think though. What happens is the radiator gets clogged externally with bugs and sand. That restricts air flow enough to make it get hot sitting with the a/c on. You can take the radiator out and wash it out with a garden hose. Just keep flushing the debris out by rinsing the radiator in both directions. This has fixed a BUNCH of 240s with this exact symptom. I have taken temp readings at the inlet and outlet and have found as little as a 5 degree(F) difference in water temps. A new radiator will have a difference of around 50 degrees.

Be careful. An old plastic radiator (original equipment in your 240) will get brittle and the neck will break off to the point where you can't clamp the hose on. This can happen when working on the cooling system or other unrelated repairs by just resting your hand on the upper hose. Ask me how I know this.


Re: A/C causing radiator to heat up[ALL/1998] posted by Joe Bosco on
Friday, 13 June 1997, at 8:21 p.m.

Mark:

Thanks for the advise. I guess you must have broken the neck of a radiator... I am not much of a mechanic (change oil once). Do think a repair shop will do what you advised? Do you think I can drive the car without the A/C on without fear of a major radiator breakdown. The radiator does not leak. The car has been serviced at all of the service levels. The repair shop I went to wanted to replace the radaitor for approx. $425..., and I would not be sure the A/C would work. The A/C does blow "fairly cold", but the repair shop indicated that there might be a blockage in the expansion valve. The cost associated with this repair (including freon , etc ) was expected to be approx $400 more... So you can see I have a problem of what to do. Any advice... I do like the car and have had it from day one, but am I about spend a lot of $ without any results... Thanks.


Re: A/C causing radiator to heat up[ALL/1998] posted by Mark Klein on
Monday, 16 June 1997, at 5:45 p.m.

They might do the repair/cleaning but I'm sure they will give you the standard "we can't guarantee that will accomplish anything". I would still try it. They shouldn't charge anymore than $50-75 plus coolant.

I wouldn't do any a/c repairs until you get the cooling system straightened out.


Re: A/C causing radiator to heat up[ALL/1998] posted by Joe Bosco on
Friday, 13 June 1997, at 8:25 p.m.

Mark:

Thanks for the advise. I guess you must have broken the neck of a radiator... I am not much of a mechanic (change oil once). Do think a repair shop will do what you advised? Do you think I can drive the car without the A/C on without fear of a major radiator breakdown. The radiator does not leak. The car has been serviced at all of the service levels. The repair shop I went to wanted to replace the radaitor for approx. $425..., and I would not be sure the A/C would work. The A/C does blow "fairly cold", but the repair shop indicated that there might be a blockage in the expansion valve. The cost associated with this repair (including freon , etc ) was expected to be approx $400 more... So you can see I have a problem of what to do. Any advice... I do like the car and have had it from day one, but am I about spend a lot of $ without any results... Thanks.




 


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