Q: blown head gasket been sitting for a year now

asked by on June 17, 2016

My blazer overheated last year. It was thought to been a blown head gasket. I drained the oil and saw it was coffee colored. That was last year. Could I add new fluids where needed and get a head gasket sealer like blue devil and hope that fixes it? Or is that too big of a gamble and could damage it further?

My car has 92000 miles.
My car has an automatic transmission.

Car is overheating Inspection $79.99 - $89.99 Get a Quote

My best guess is that your lower engine has water mixed with the oil. This may have damaged the lower bearings of the engine. I don’t think a reseal will work since you will need major work on the engine if it doesn’t work anyway. You can give it a try but I do not think it will work.

If you’d like a second opinion on this, feel free to contact a certified mechanic who can diagnose why the car overheated to begin with and assess the condition of your engine. One this is done, an accurate repair can be made.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

I have a flat tire and the jack point is rusted.

Hi. If you look about six inches to a foot behind the jack point, the body of the car is there and is safe enough to use as a jack point for the car. The car jack may not fit...

Car won't shift to higher gear when going uphill

The loss of power can be from a clogged fuel filter or air filter or problems with computer sensors. You may also have transmissions issues also. I would recommend having a mechanic like one from YourMechanic check the filters and...

My car crank but does not start.

Hi there. Check the camshaft position sensor and see if it has failed. Usually the engine will start and run with a partial failed camshaft sensor, however, when the sensor has failed completely and lost communication to the computer, then...

Where is the fuel pump relay located on the 2000 Lexus GS 300

The fuel pump on this vehicle has a relay in the engine compartment main fuse box labeled EFI fuse. The fuel pump is controlled by an fuel module in the left rear of trunk and this is powered by this...

Turn signal and hazards not working

Hello, thank you for writing in. It is possible that the vehicle could be having a switch or ground connection issue. The turn signals and the hazards are wired separately so that your hazards will work independently in emergency situations....

thinking of buying a truck with 300K miles,well maintained etc. would it be a good idea?

The thing to look at is this is a full size truck with a small V6 engine size. This engine would have worked harder than a larger V8 engine would have. This does not mean the engine is bad but...

My 06 Chevy trailblazer gear shift fell off

The shift cable ends go bad and get worn and will come off of transmission or at shift lever connection. You will need to replace the cable end bushing if replaceable or replace entire cable to repair it.

Heater fan seems to surge

Hello. Your vehicle does use a vacuum operated heater control valve to allow hot coolant into the vehicle's heater core so that warm air can be generated. If you hear an opening and closing sound then it may be possible...

Bottom right radiator hose will not go into new radiator

Get a transmission line disconnect tool or pop the clip out with a small pick tool and reinstall it. The 'jiffy-tite' connectors and manufacturers of radiators will make the adapter fittings different sizes which could be why you are experiencing...

Related articles

Symptoms of a Bad or Failing Low Water Sensor
If your car has low coolant without a warning, the Coolant Light comes on for no reason, or the car is overheating, replace the low water sensor.
The Best Used Cars to Buy If You Love Camping
Do Do you love camping, getting back to nature and enjoying life in the great outdoors? If you do, then you know that getting there can be half the fun, and it’s even better if you have a great ride....
Symptoms of a Bad or Failing Cylinder Head Temperature Sensor
Common signs include long cranking time, engine performance issues, and the Check Engine Light coming on.