Question about 1999 Oldsmobile Silhouette

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Might have a blown headgasket as well or timing belt.

My mechanic can't figure it out just yet, but the car had been overheating, and our temps these past two weeks have been an average of 10 degrees. So it died and he can't figure it out as of yet. I'll let you know how much tomorrow once I get the problem figured out and an estimate.

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  • William Hoffhines May 11, 2010

    First check/replace thermostat.

    If you have a Dual Overhead Cam engine if the timing belt slips/breaks/etc. then other 'bad' things can happen; valve or stems can break, overheating can ruin an engine in short order also. Just have your mechanic go down the list i.e. troubleshooting this is usually straightforward, don't exclude a 2nd opinion (mechanic).


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My van blew the rear head gasket costing about 2,000 to repair. It was caused by the DEXCOOL coolant eating away at the gaskets. Make sure that when repaired you get the updated gaskets.

Posted on Feb 18, 2009

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My 2010 journey is over heating what can I do to stop it

Figure out why and correct this issue. There are numerous things that can cause overheating and many are beyond the average do it yourself repair. Some possible causes are: failed thermostat, failed water pump, broken water pump belt, low coolant level, failed cooling fan, failed electrical cooling system, failed heater core, leaking hose, air pocket in cooling system, failed radiator cap, failed radiator, cracked head, cracked block, failed headgasket etc. Beware it only takes one time overheating to damage the cylinder head or headgasket. Get that checked.

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Your vehicle ran hot and probably did damage to the engine. Probably blown headgasket and/or cracked head. A compression test will confirm this.

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Overheating problem

overheating sound like faulty thermostat.thermostat either sticking close or could have blown headgasket if you see a lot of white smoke coming out of exhaust.if headgasket is leaking check engine oil should look milky.also check water pump look around weep hole or see coolant leaking around water pump replace water pump.also check water pump drive belt.make sure drive belt not loose slipping.

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1996 ford probe is overheating, the fan won't come on

You have one of these:

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- Blown fan Motor
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2001 subaru legacy overheating

Well it sounds like you have covered most of the bases.
One thing that could cause overheating is a restriction in the exhaust.
Do you know if the radiator fan is coming on when the engine reaches 220 degrees ?
How long can you drive it before it starts overheating, and does it boil over when it does ?

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Blown head gasket

if you are going to do it yourself you are going to need the following spares :

New headgasket and the specialized tools.

An engineering shop will need to skim the head for you and while you have the head off you can just as wel do the valve guides, valve seats, replace the valves and the valve springs.

Best is to try and get a workshop manual (not owners manual) and follow the steps in there.

Note that a head needs to be torqued, and for this you will need a torque wrench.

Repairing a blown head gasket is not rocket science however it will require more than basic mechanic skills and typing it out on a help forum like this one isn't really practical. And removing the head you can also replace the timing belt, and THIS is where the workshop manual comes in handy (valve timing is critical or you can for all intends and purposes destroy the engine).

Like i said, its not rocket science but without the right steps and settings its not something you just figure out if you arent a serious mechanic.

Oct 11, 2010 | 1991 Mazda 626

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Headgasket I think its blown Im overheating water

pull all of the spark plugs and roll the engine over please protect your eyes and that will tell you what side it is comming from by coolent shooting out. then you can pull the bad side apart to see if it is indeed a head gasket or a cracked head.

Sep 18, 2010 | 1996 Honda Civic

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Toyota wont start over heated replace the thermostat and radiator cap could it be the water pump is bad how do I tell

if it wont start immediatly after it overheated then you may have blown the head gasket, or melted a coolant temp sensor or other sensor or wire. look closly for the melted stuff. remove radiator cap and fill with water to the top of the rim. have someone crank it and if a air bubbles come out while cranking then a headgasket is most likely blown. some little bubbles at first dont mean nothing. its a steam of bubbles the whole time its being cranked that indicates head gasket

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Have a knocking noise in engine and white smoke coming out exhaust? Does this year accord have a timing belt ?

The white smoke is from a blown headgasket, your coolant is leaking into one or more cylinders and that's actually steam that you see coming from your tailpipe.
When this happens, your coolant level drops (because it's pumping it out the tailpipe), your car overheats, and of course it will knock as it overheats. An overheated car is sluggish, as well.
Another bad thing that occurs by driving a car with this problem is that the coolant is washing the oil off your cylinder walls and your rings will tear up your cylinder walls as they self-destruct.
Head gasket replacement is not an easy fix nor is it cheap, and usually you'll need to get the head machined to make it perfectly straight again - heads warp from overheating. A good mechanic can do a head gasket replacement in a few hours.

Overheating can cause knocking.Your best bet is to replace your motor because usually the knocking noise is caused by a spun bearing which would cost a lot to repair.

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