2002 Chevrolet Impala Logo
Posted on Oct 21, 2010
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Car overheating not holding water can find no leak from rad'

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Wayne Fraser

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  • Expert 83 Answers
  • Posted on Oct 21, 2010
Wayne Fraser
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Joined: Feb 06, 2009
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Posibilities are head gasket. Coolant can get into one of the cylinders and will be evaporated and sent out the exaust. If tyhe leak is bad enough it can cause a miss fire on that cyld . If you take the plugs out the faulty cyld will have a white coulour to the plug electrod. Also check heater core . Could be leaking and evaporating the fluid into the passanger area. Usually when this happens you can smell coolant and sometimes the windshield will steam up with the defrosters on.

  • phaT-X Jan 06, 2011

    actually on the 3.4 liter, it's more likely to be a lower intake manifold gasket leak, it's very common for that engine (happened to me), and for the 3.8L, the plenums are famous for cracking and leaking coolant into the intake system (also happened to me). Both are very common and happen to these engines often.

  • Wayne Fraser Jan 06, 2011

    Yes I forgot about the intake leak common to the chev . Very well could be .

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I have a Isuzu ELF Dump Truck and using 4HF1 Engine . But the Engine is over heating and boiled water . We already replace head gasked but not solved

well does it hold pressure, no leaks. no pan full of water (engine pan)
1:bad cap rad.
2: bad thermostat or installed backwards
3: under filled. system. (air pockets not burped out)
4 : using only water, no AF50% only
5: bad pump belt slip to same.
6: rad,core tubes, clogged, use IR thermal gun to find super super easy. ask.
7: end RAD FAN overheated its dead or too slow.
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Overheating 97 Lincon Town car

Connie, Were the radiator,water pump and thermostat replaced to try and fix the over heat issue or as maintenance. Engine overheating can be caused by a lot of things, Leak in cooling system, air in system, bad rad. cap, slipping belt, faulty thermostat or installed upside down, faulty water pump, plugged radiator (inside/outside), collapsing rad hose, faulty cooling fan, leaking head gasket, sludge plugging engine water passages, poorly tuned engine, etc..
Take into a good shop for diagnoses and estimate for repair. Check the attached links,instruction and guides, Good luck
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How to Troubleshoot an Overheating Engine
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Blown head gasket in suzuki swift/signs

Signs
http://www.fixkick.com/overheating.html#SIGNS

why not consider all signs. and let the evidence prove the puddn
???
head gasket. signs (huge list)
overheating.
water and steam gushing from rad cap or overfill tank
carbon in the rad neck hole, cap off cold.
oil in same place
water in engine pan, (milky)
steam out the tail pipe after engine fully warm.
water leaking down side of block at head/block juncture.
cylinder compression low on 1 or more.
cylinder leak down fails on 1 or more
the green/blue die test fails.
the rad leak down gauge test fails.
engine pings
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funny sounds.
i can list more, but that is enough.
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97mitsubishi..3000gt overheating

Have you had a chance or have your mechanic check the thermostat (control) and/or the coolant pump ? If any of them is not working, the coolant will not circulate (properly) and hence, it overheats.
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Van keeps shutting off on its own and overheating

you mean the engine, overheats then the engines stalls.?
that latter symptom is normal for overheating.

(some exceptions, ) my Corvette drops cylinders, 1 by 1 to stop
this.(but is still bad , if this happens)

does it overheat only stopped, only moving or both? (KEY question)

fix the over heat, cause. there are may ways to overheat.
from simple to comlex. and no web bunny on earth can guess it.
unseen.
ill list the simple:
1: low on coolant, no not the side tank, the actual rad is low,
check only on dead cold engine,below 125F (AZ temp)
2: bad RAD cap. not holding pressure.
3: wrong coolant mix or mixing 1 color coolant with another (bad)
4: water pump belt bad , or slipping or missing.
5: rad tubes clogged
6: fan dead,
7: RAD outside ofcore, blocked with filth.
8: blown head gasket,(or far worse)
9: bad water pump.
10: leaks anywhere, (this really is first)


one site that lists them all , every one,... is
http://www.fixkick.com/overheating.html
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Engine keeps overheating

I'd start with replacing thermostat (that's the most common fault) Other possibilities; waterpump,leaky hose, radiator cap (not holding pressure), fan belt broken. I'd inspect for belt & leaks - if good replace thermostat.
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Car overheated alot of water leaking out the

First find exactly where the water comes from.
broken hose or hole in radiator - if no leaks here then :-
broken / loose drive belt to water pump - sign is no heat to internal heater
thermostat stuck - heats up and overheats quickly. water from exits rad cap area
also check radiator cap - should be sprung to contain water under pressure, usually these are very reliable

check oil filler cap [inside of] - should be oily and grey/black If it has a covering of what looks like soft brown aireated jelly then possibly hear gasket or other internal engine leak between water & oil ways. The excess pressure from engine will force water out of rad cap area . A compression test with variable readings for between cylinders will confirm this. Hope its not this. It's expensive
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1994 Honda Civic LX\overheating within 2 mile drive

Remove and raise upper hose at thermostat end and remove lower rad hose.
Fill rad with a hose and watch for flow from bottom rad hose and/ or bottom rad hose connecton.......water should fall though rad easily.
Honda rads are cheap.....any restriction....replace rad.

Remove thermostat....fill thermostat housing with hose and watch for water flow at bottom rad hose.
Flush good.

Remove heater hoses.......flush back and forth until a good flow is present "With heater control set to hot" if no or poor flow....replace heater core.

Stop leak can plug everything.

Also.......not likely causing over heating....but ....at your mileage,if you do not know if the timing belt has been changed.....CHANGE IT NOW!
Water pump is optional at this mileage.
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Replaced upper radiator hose and filled with water, still overheating and loseing water

You have replaced the upper rad hose. Was this done because of a leak? Was it replaced because overheating was occuring? If overheating is a problem you may have to look at some other things.1 Cooling fan 2 Thermostat 3 Head gasket
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