Question about 1992 Lexus Es 300

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Coolant overflow, serious steam bursting out. changed both rad caps and the thermostat. only 75,000km on the motor. rad is in grat condition.

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  • Joseph Weisenberger
    Joseph Weisenberger May 11, 2010

    I just went through a similar problem in my 1999 Ford Taurus. Is the coolant exploding like a volcano or is it more overflowing like a glass of water left under a faucet? I've done about everything I can think of to mine and finally got it fixed by replacing the PCM, but let me know what's going on and we'll work through it.

  • Michael Beverlin May 11, 2010

    Water pump??

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  • Lexus Master
  • 3,433 Answers

Put open end of overflow hose in container of water. Start the engine and watch for smokey bubbles in your container. If you have some, you have a blown head gasket Give it about 5-10 minutes idling.

Posted on Aug 02, 2009

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3 Answers

How do i fix an engine which is overheating?


there are only two causes of overheating - and that applies to all engines in existence...

1. insufficient lubrication
2. insufficient cooling

best proceed with cold engine, on level ground

re1. check lubricant level and flow, check lubricant condition for presence of foreign mater or liquid, best, change oil and oil filter.

re2. check coolant level, including overflow bottle, if insufficient - add coolant. check coolant condition and flow. do not close the cap, start the engine, check for presence of bubbles in the liquid while engine is running, if there are bubbles present - it can indicate blown headgasket, especially if distinct smell of fuel is present. switch off the engine and feel top and bottom of the radiator, it should be same temperature or very similar, if it is much colder on the bottom than on the top - there are two possibilities, thermostat is gone and need to be replaced or too much gunk in the radiator and need flushing.

hope this will help you - do not forget to vote...

Mar 22, 2015 | 1992 Isuzu Pickup

1 Answer

On my Suzuki gran vitara 2002 I am losing engine coolant from overflow pipe,,overheats after 20 mins of driving(once coolant tank empty),,recently had a new thermostat fitted...please help,,thankyou


you might have a blown head gasket, when the engine is cold remove the rad cap start the engine and look for air bubbling into the rad , if you see said bubbles then you need to have the head gasket replaced. PS Do not remove the rad cap when the engine is hot as you could be seriously injured/burnt

Mar 03, 2015 | Suzuki Grand Vitara Cars & Trucks

2 Answers

I have a 2005 jeep liberty that's over heats any solutions?


full flush it yet. (AF change out is very limited)
rad tubes clogged, use pyro gun to find this easy.
bad pump. all AF goes acid if IGNORED.
fan belt slips.
Rad fans dead.
thermostat upside down
thermostat bleed hole not up hill , trapping air in block making gauge fail too.
is the block really full of AF or are you reading the liar tank, onside.
check rad levels in the RAD cap neck for full or not. dead cold.

is it is really overheating or only the fibbing gauge , tells you that,?
no steam?
no bursting of AF out side tank
no pinging,?
no loss of power.?
lots and lots of signs , not one stated.......do so please.
A/C trips off line? (it too has over heat detection)

Jul 02, 2014 | 2005 Jeep Liberty

1 Answer

Steam from coolant tank


Rad cap pressure determines boiling point,as well as coolant strength.. if the system is pressurizing immediatly after starting, i would suggest getting a "block test" using fluid that reacts to combustion gasses for possible head gasket or other issue

Feb 04, 2014 | Chevrolet Cars & Trucks

2 Answers

Changed thermostat. temp guage rising to "H" after about a week. little steam coming from radiator cap. reserve FULL and not going down. added coolant/water to radiator. temp gauge OK. could...


Hi,
If you are not seeing any leaks, most likely air in the coolant system, improper/weak coolant mixture, bad radiator cap, bad thermostat. Sounds more like the air and/or weak coolant to me.
Mike

Jun 20, 2011 | 1999 Chrysler Sebring

3 Answers

I have considerable steam coming from the area of the rad cap. Temp gauge doesn`t indicate any overheating issues and the coolant reservoir is within the desired fill. However, coolant reservoir it has...


It may be the radiator cap itself, but is most likely a crack that has formed around of near the radiator, causing steam to exit from this area. It seems like it is a small leak, otherwise the coolant loss would not be so gradual. Radiator replacement will most likely solve this problem after the radiator is inspected and a crack is found. I do not recommend the use of Stop leak to correct leaking radiators, in the long run, they do more harm than good.

Jan 22, 2011 | Dodge Caravan Cars & Trucks

1 Answer

1998 Ford f-150 with the small v8. Driving a short distance the engine begins to heat up. needle bobs around the middle then shoots up to the max. engine cuts a portion of the power sometimes and check...


From your explanation it seems you are not loosing coolant so I would rule out a head gasket at this point. I would however check the "new" thermostat. Remove the thermostat and put in pot of water. Use a thermometer that will read the boiling point of water (212F 100C). Heat water and whatch that thermostat opens at its designed temperater. You can also see if the thermostat is opening by removing the rad cap when eng cold - start you eng and see if the coolant flows in the rad before the dummy light comes on. If the coolant does not flow your thermostat is stuck or improperly installed. Also be sure that your rad cap is of the proper number of LB rating for your vehice. The steam from your exhaust is normal at cold start up - it is simply condensation evaporating. That is how you can tell if a person has not let their vehicle warm up. If you follow them it will stop after vehicle reaches operating temp. Please let me know if this helps.

Dec 03, 2010 | Ford F-150 Cars & Trucks

1 Answer

I have exhaust bubbling out of my radiator over flow and dont kno if its cus the head gasket is blown or if its just steam evaporating because the water pump isn't working on a 2000 hyundai accent


If you have excessive bubbling comming out of the radiator or overflow, its usually because of compression leaking into your cooling system caused by a blow head gasket or cracked block. If the watter pump isnt circulating coolant its most likely over boiling the coolant in the motor. Best suggestion is to leak down test the motor with the rad cap off. See if you're loosing pressure and if so, check if the pressure is comming out of the rad. If it is loosing pressure and comming out of there, you have one of the following issues above. If not repair the water pump, change the thermostat as well and re-check

Jul 31, 2010 | 2000 Hyundai Accent

2 Answers

I have a 1994 Plymouth Grand Voyager. I replaced the thermostat 2 weeks ago, and now the heater valve but I don't know how to bleed the antifreeze so the air can come out. How do you do this on this van?...


Hi there... with the radiator cap off, start the van and let it warm up. Once the thermostat opens you will see the coolant start to circulate in the rad. let it run for 10 - 15 minutes and add more coolant as needed. you will know when there is no more air because the coolant leve, won't go down anymore. Top up the rad and put the cap back on. make sure the overflow resevoir has coolant in it to the full mark and youre done. Hope this helps you out

Jan 06, 2009 | 1999 Dodge Neon

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