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Ex450 hitachi excavator, 6rb1t isuzu engine. radiator is new , new thermostat, new water pump, flushed the block out sealed around the radiator for heat return, still gets hot, 76 degree thermostat and the radiator is 76 degrees (checked with a laser heat gauge) . but the rear of the block still gets 95 + degrees. and that is just in the yard no buck moving the dipper arm in and out and boom up and down. has anyone else had similar troubles or is there a common fault or something? any help would be greatly appreciated!

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

onyeredson
  • 404 Answers

SOURCE: Engine runs hot on 2001 Stratus R/T 3.0L V6

Hello, as previously suggested by my collegue it appears you have an air lock. Have you tried parking the vehicle on level ground, from cold with radiator cap off start the car and leave it idling. Make sure the fluid/coolant levels are o.k. and let the engine reach operating temp. Keep some warm water handy and watch/listen the water/coolant system (Keep a safe/sensible distance from radiator) hopefully after a while the system will bubble and boil up let it settle for a few seconds and then top up with very warm water do this until it hopefully stops belching out of radiator. Replace cap and hopefully top and bottom hoses will be warm. Oh! nearly forgot keep all heater controls on hot with blower on full..(Inside the vehicle)
Finally I'm not joshing but is the thermostat in the right way round and functioning correctly? to test drop it in some boiling water it should open almost immeadiatly.
sorry for the epic but I'm here to help and hopefully save you time and money.
Good luck and a Happy New Year to you and your family!
Paul 'W'

Posted on Dec 29, 2008

JMMARRERO59
  • 77 Answers

SOURCE: 1998 Dodge Durango no heat when using heater.

BLEND DOOR STUCK OR BROKEN. NEEDS TO REMOVE DASH AND HEATER/EVAP CORE BOS TO REPAIR REPLACE.

Posted on Jan 08, 2009

  • 2 Answers

SOURCE: Dash Temp Gauge reading extremely hot

I had an issue with my 95 taurus and we ended up having to replace the thermometer

Posted on Mar 05, 2009

  • 255 Answers

SOURCE: The temp gauge says the engine is hot but, in

I'm not certain if this engine has coolant bleeder valves, but if it does, make sure there aren't any pockets, particularly around the sending unit. Something is fooling the computer into thinking that things are really, really hot.

Posted on Nov 25, 2009

dttech
  • 4803 Answers

SOURCE: Heat troubles..92 dodge caravan 3.3L..new

If it is fogging your windows, you have a leaking heater core. Dash removal is required to fix it.

Posted on Jan 11, 2011

Testimonial: "great advice,,but I am not losing antifreeze from my cooling system,"

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I have a 2000 buick regal gse it has a 3.8 l engine with a supercharger Im trying to drain the radiator to flush it out and add new antifreeze Im having trouble with the pitcock valve any suggestions


Dont bother with the Pep/Pipcock. Simply remove the hose on the radiator near the water pump. Also pull off the thermostat hose and Thermostat (Buy a new one with seal) Flush it with water till clean. (The block and radiator) Those valves can and DO break. Then you'll need a new radiator. After all is said and done. That brass bolt is the air bleeder on the Thermostat neck.

Nov 30, 2016 | 2000 Buick Regal

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My 2001 Isuzu trooper 3.0td is flushing water out of the radiator and their is some pressure when I remove the radiator cap the next morning


there are up to 25+ symptoms
of engine overheat.
flushing only works on toilets.
My guess, is it's leaking coolant somewhere.
There should be no pressure next morning.

Cold water does not build pressure.
but if the vacuum breaker in the cap fails
this can cause vacuum pressure, that sounds like
air pressure. but is not. Reverse
Does engine run ok.
have full power,
no pinging
no water leaks.
if it leaks say where exactly.
locations matter,
1: steam blasting in to side, expansion tank running?
2: steam from tail pipe end.?

here are 27 symptoms or causes.

http://jeepdied.com/overheated/overheated%20101.html



same on all water cooled engine,s this.
the top fail is bad thermostat , they live about 7 years, says the top makers.
the next is leaks,
then bad RAD CAP,
cooling fan dead? and more.
running water only not Antifreeze 50%

Nov 11, 2016 | 2001 Isuzu Trooper

1 Answer

Message light states that engine is overheated and engine must be shut off


The loud fan is probably normal for your car but it is possible the fan blades are touching the cowling as it spin or the bearings are on the way out. For the moment, don't worry about the noise because at least it is working and you need to concentrate on the cause of overheating. Assuming you have enough coolant in the system it sounds like a recirculation problem. This could be caused by any of the following:
  • Blocked flow which could be a pipe, radiator or where the coolant flows inside the engine
  • A faulty water pump, so not pumping round system
  • A faulty thermostat that is not opening at temperature
There are several things you can do and is simply a case of eliminating the causes one at a time.
Start with the thermostat and remove it from its housing and either leave it out (for now) and refit the housing to seal the system. See if that helps because coolant is pumped around the engine at start up and once hot the thermostat opens and allows it to flow through the radiator to be cooled as air passes the radiator. That eliminates the thermostat as the cause if it still overheats.
Next, disconnect the bottom and top hoses from the radiator and try to flush through the radiator with a hosepipe and see if there is a flow through it to eliminate a blocked radiator.
Then do the same to flush out the engine.
I always prefer to flush from the bottom and overflow out of the top wherever possible as this lifts any blockages and air pockets, but if it won't flow one way then try the other way. From top to bottom flow, you can't be sure that the flush water is just trickling through as gravity will let it run downwards anyway.
If everything flushes properly and running without a thermostat still causes overheating then it may well be a water pump problem.

Oct 19, 2015 | Cars & Trucks

1 Answer

How to back flush heater core 2007 grand prix


drain coolant system locate heater cores hoses going through firewall you need to buy the radiator flush kit at any auto parts stores. remove heater cores hoses from one end or buy extra long heater hoses same size as heater core hoses in vechicle at auto parts store use the flush kit when you flush through one of the heater core hoses let the other hose drain in a drain pan when you use home garden hose use low water pressure dont use garden hose to the max or you will rupture heater core. your best bet let radiator shop flush whole coolant system. because heater cores hoses are in a tight spot.make sure engine off if you just going to flush out heater core only .after flushing heater core good time to replace heater core hoses.if job too hard or complicated let radiator shop flush out radiator the engine block and heater core because if radiator stopped up or engine block stopped up the gunk and rust will reenter plug up heater core.if you tight on money you can flush out your own radiator.drain out radiator using large drain pan. remove top radiator hose and remove bottom radiator hoses connect to water pump.use garden hose with flush kit part with water pressure not too high put garden hose to top radiator hose run water until clear water run out bottom radiator hose in drain pan,the flush out engine block remove thermostat.if you had another spare thermostat housing with RTV SILICONE SEALANT THAT HAS SET UP INSTALL THERMOSTAT HOUSING BACK TO ENGINE WITHOUT THERMOSTAT FLUSH OUT THE ENGINE BLOCK, WHEN DONE INSTALL NEW THERMOSTAT THEN INSTALL ORIGINAL THERMOSTAT HOUSING WITH NEW ORING WHICH YOU BUY AT DEALERSHIP.IF ALL SOUND COMPLICATED LET RADIATOR SHOP FLUSH OUT COOLANT SYSTEM.

Nov 27, 2012 | 2003 Pontiac Grand Prix

1 Answer

I have replaced the engine coolant and my blazer still overheats


You just have to keep checking. Try a new thermostat. Also make sure you have a good radiator cap with a good seal, cause the seal pressurizes you coolant up to about 15 psi. Check if circulation is good: engine running at normal operating temp. (to make sure your thermostat is open), radiator cap off, squeeze top radiator hose closed(use gloves, if necessary) then release, and look in radiator to see if coolant surges when hose is released. Feel your bottom hose. It should be warm to hot, If it's cold, your radiator might need flushing. Check your water pump for signs of leakage (whitish deposits around bottom of pump.) If all checks out, you need to consider a compression test to see if your head gasket needs replacing. Good luck.

Oct 23, 2011 | 1997 Chevrolet Blazer

3 Answers

We just replaced the radiator and the thermastat but the needle still goes to hot


replace the temperature sending unit. Its right there by the thermostat. You can get this at any auto parts store. just need an open end wrench to change it. they do go bad(found out the hard way several years back). I hope this helps you

Jan 13, 2011 | 1999 Plymouth Voyager

3 Answers

Ok i got a 2004 chevy monte carlo and it seems to be over heating i changed the thermostate out and i dont believe its the water pump because its not leakn around the seal and i noticed its only geting hot...


YOU SHOULD FLUSH ENGINE BLOCK BEFORE INSTALLING NEW THERMOSTAT.YOU NEED RADIATOR FLUSHED AND ENGINE BLOCK FLUSHED.ALSO REPLACE THE RADIATOR PRESSURE CAP.

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1 Answer

Want to know how to change a thermostat on my 2004


It Depends on which engine you have, this is how it goes for both. I use a little RTV with a new ring as well.

THERMOSTAT REPLACEMENT (4.2L ENGINE)
Removal Procedure
1. Remove the necessary coolant from the radiator.
2. Remove the generator.
3. Loosen the outlet hose clamp at the thermostat housing. Remove the outlet hose from the thermostat housing.
4. Remove the thermostat housing bolts.
5. Remove the thermostat housing from the engine block.
6. Clean all of the surfaces of the thermostat housing.
7. Clean the sealing surface of the engine block.
Installation Procedure
1. Install the thermostat housing to the engine block.
2. Install the thermostat housing bolts.
Tighten: Tighten the bolts to 10 N.m (89 lb in).
3. Lubricate the inner diameter of the radiator hose with engine coolant.
4. Install the outlet hose to the thermostat housing. Secure the hose with the clamp.
5. Install the generator.
6. Fill the cooling system with specified coolant and concentration. Follow the correct cooling systen bleed procedure for your engine.
7. Inspect all sealing surfaces for leaks after starting the engine.
THERMOSTAT REPLACEMENT (5.3L ENGINE)
1. Drain Radiator and remove the radiator outlet hose.
2. Remove the water pump inlet bolts.
3. Remove the water pump inlet and thermostat from the water pump.
Installation Procedure
IMPORTANT: The thermostat is not serviceable separately. The water pump inlet and thermostat must be replaced as an assembly.
1. Install the thermostat and thermostat housing to the water pump.
2. Install the thermostat housing bolts.15 N.m
3. Install the radiator outlet hose.
4. Fill the cooling system with specified coolant and concentration. Follow the correct cooling systen bleed procedure for your engine.
5. Inspect all sealing surfaces for leaks after starting the engine.

Mar 17, 2010 | 2004 GMC Envoy

1 Answer

1993 chevy camero- thick, rusty colored residue in radiator


The rust is probably in the engine. There are many little pockets, water ways, water jackets (around the cylinders), etc, so getting all the rust out without dunking the block and heads in a cleaning tank is about imposible. I would recommend giving it really good flush every 4 to 6 months. I would try flushing the radiator before replacing it because it is probably not rusted, even though it is full of gunk.

May 18, 2009 | 1993 Chevrolet Camaro

2 Answers

3 liter mazda mpv overheating


You probably never cleaned the cooling system out.

If you have not get it done by pros.

It seems something is blocking the flow. If the water pump went bad you will know. Rarely ever heard a impeller breaks off like you think. The bearings and the seal break first.

Check and see also if the heater valve is working.

As for the over heating even new thermostats fail. Reverse flush is needed or the procan measure the pressure in the radiator cooling system and edetermine if there is a engine pressure problem. Tools and experience is the key in the game of diagnosis.







wfg8.com

May 17, 2009 | 1995 Mazda MPV

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