Question about 1997 Oldsmobile Cutlass Supreme

4 Answers

My 97 oldsmobile cutlass supreme is leaking coolant and over heating, why? I also noticed tht the oil is milky. Please help

Posted by on

4 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 8 Answers

The most likely source of your problem is NOT a head gasket or cracked head, but the black plastic plenum or "upper intake manifold". These GM engines tend to melt, crack, or warp the plenum because of the hot EGR tube sticking up through the plastic.

If water is getting into your oil (milky looking), your lower intake manifold gasket is probably cracked. Once the plenum is off the engine, there are only about a dozen bolts holding the lower intake manifold on. When you replace the gasket, it is recommended to use an ALL METAL gasket with rubber seals to prevent this from happening again. The metal gaskets cost about $80 where as the plastic ones that are prone to breaking cost about $45. Better to fix it right once than to do it wrong several times.

Also, if you are still using Dexcool coolant (orangeish), be sure to change it every two years or so as it does bad things to seals when it gets old.

Posted on Jan 21, 2010

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

The car want start and want turn over. but the light still come on

Posted on Sep 03, 2010

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

Cracked head or blown head gasket. Have your Mechanic make sure your "Engine Block" isn't cracked, as if you replace your head and/or gasket the cracked Block could be to blame. Also, if they state that it is just the Head Gasket, make sure they Machine your head or it will blow again due to warping.

Posted on Nov 19, 2009

  • Karusai Aug 24, 2010

    Yarp: I just found out about this (plenum) issue due to my 1997 Chevy Malibu LS I just purchased :-(

    I am amazed at the "Lack of Quality" GM is continually portraying in it's automobiles. I guess I got lucky though, the new Malibu's tend to have a ton more issues than the 2nd gens'.

×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 715 Answers

You have water in your oil sounds like a cracked head dont drive until it is repaired or it will do more damage

Posted on Nov 13, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Pulled oil cap saw water drip from cap pulled dip stick oil was not milky where is water comming from


If you are adding coolant, it could be a gasket problem. But if it is plain water, the engine is not getting hot enough to evaporate the moisture inside.

Aug 03, 2014 | 1994 Oldsmobile Cutlass Supreme

1 Answer

Losing coolant-no exterior leaks


look on the oil cap to see if it is milky looking if so the intake manifold gasket is leaking

Aug 17, 2012 | 1994 Oldsmobile Cutlass Ciera

1 Answer

97 olds cutlass losing coolant and water getting


might not want to hear this but sounds like a head gasket,check the oil also if the oil is creamy like a light color this is probably the problem

Jan 03, 2010 | 1996 Oldsmobile Cutlass Supreme Coupe

3 Answers

My 97 oldsmobile cutlass supreme is leaking coolant but does not overheat.


Sir,
it must be over heating there might be the fuse or the machine damaged through which must causing not to show over heating sign blink on or just on.

Nov 20, 2009 | 1997 Oldsmobile Cutlass Supreme

3 Answers

Wather in the engine oil , oldsmobile 1995 cutlass supreme


If there is water in your engine oil or it looks like chocolate milk, then you have a blown head gasket. Your coolant will also be off color and your car will most likely begin to overheat. It will be need to be repaired.

Jul 06, 2009 | 1995 Oldsmobile Cutlass Supreme

1 Answer

Air will not get hot


Try flushing the heater core with a garden hose.

Mar 14, 2009 | 1994 Oldsmobile Cutlass Supreme

1 Answer

Loosing coolant no obvios leak


Yes it is possible, if you oil is not milky or no other leaks can be seen. have the cooling system pressure test completed. Most small shops will only charge 10-20 bucks and this should find the leak

Nov 29, 2008 | 1992 Oldsmobile Cutlass Supreme

Not finding what you are looking for?
1997 Oldsmobile Cutlass Supreme Logo

842 people viewed this question

Ask a Question

Usually answered in minutes!

Top Oldsmobile Experts

yadayada
yadayada

Level 3 Expert

75051 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7726 Answers

Are you an Oldsmobile Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...