Question about 1995 Pontiac Grand Prix

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My car is overheating and using up the water in engine coolant reservoir when i refill

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  • Ricky Gittins
    Ricky Gittins Jul 19, 2010

    Do you have any leaks under the car ? What about steam or water coming out exhaust ? Any resent work done ?

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There are a couple of things that make a vehicle overheat. Your thermostat could be stuck closed not allowing the coolant to circulate, or your waterpump has gone out. Its possible your radiator has clogged up from minerals and or rust from the water.

Make sure you don't have a leak or a bad hose. The lower hose sometimes will get weak from oil contamination and the water pump will actually **** it closed.

When the car is warm feel your top radiator hose and see if it is cool. That would indicate a stuck thermostat. If it is hot then put on a pair of gloves and squeeze the hose, you should feel the pulsing of the waterpump and the water flowing by (like a garden hose). If not that is a good indicator of a bad pump.

Posted on Jul 19, 2010

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Posted on Jan 02, 2017

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1 Answer

I have 1998 excavator 345bl engine 3176C AND IT GET OVER HEAT after 30 minute of work what can I do to stop the over heat


Not fully conversant with this engine but generally causes of overheating are the following;
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Make sure radiator and reservoir have enough coolant, if reservoir / radiator don't get hot when engine is running then there is a blockage or the thermostatic valve is faulty.

Flush the coolant system with appropriate additive, refill and try again (you can for this use plain water without antifreeze But if it works you MUST ADD anti freeze afterwards.

If flushing system does not work you will have to replace the valve. Unfortunately I have no idea where that will be on this engine , apart from it being near the top of the water cooling systemand directly before any hose going to radiator.

Hope this helps

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If you have either of these, you may need to have a new head gasket for the engine, and hopefully you do not have a cracked engine head.
This will require a fair bit of work to fix correctly. Your local garage or mechanic may be your next call.
There are some products you can use in the coolant for either of these, but it is only a temporary fix.

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The probable reason for engine stalling can be overheating.
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Ok ..continuing to have a overheating prob. w/a 2005 Lincoln LSV8...refilled the coolant tank (used mostly water) started her up and let it idle for 15-20 min. it did lose coolant from some where under the...


First there is but one water pump, next did you bleed the air out of the cooling system as directed in the factory manual? If you did then the engine may have a leaking head gasket. Water pump picture below. You may also have a leak in the recovery tank, but that would not cause the overheating unless you let it run dray. This engine is very easy to damage if overheated, think you should let an expert look at this problem.
9_20_2012_11_32_33_pm.jpg

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1 Answer

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Sounds like to me your mechanic is on the right track by having the rad cap changed. If the coolant becomes low again in the near future and there is no visible fluid leak on outside of engine or on floor/ground then your problem is internal and possibly a head gasket.

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1 Answer

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2 Answers

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it seems like the radiator of your car needs attention. check for coolant level in it, when its cold. if les add some coolant and then see if the problem persists.
--than there are chances of chocking in the coolant pipes, may be they not reached to engine..  
--Check the chock,, that it is not turned on. 
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