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After I replaced my water pump on my 03 trail Blazer 6 cly. Vortex twice ,my rad. Had a hole ,well I plugged up hole and no leaks ,so now it heats up bad why should I take out thermostat

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  • Cars & Trucks Master
  • 1,914 Answers

You take the thermostat out before using sealer because the sealer will setup in the thermostat.

Posted on Jan 15, 2020

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  • Cars & Trucks Master
  • 4,057 Answers

If you used some rad sealer the thermostat is probably bad, so it will be overheating, this will blow the head gasket. take the thermostat out and refit. without the it in, go for a drive, the temp should rise up and down. when you come back leave to cool down. and flush the system out with fresh water, and then replace with new thermostat, if no leaks top up with antifreeze and water, leave top off and run engine to get bubbles out of engine squeeze radiator pipes as warming up. and top up water as it goes below line. when all air is out and fan has come on to say its at full temp. leave to go cold. and top up if needed and put cap back on.

Posted on Jan 14, 2020

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6ya6ya

6ya staff

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Posted on Jan 02, 2017

Mike258

Justin Case

  • 1498 Answers

SOURCE: 2000 Jeep Grand Cherokee Limited

Hey there Dave,

Had the same thing happen to my Wrangler about three years ago.
It was the weep hole too.

I drained the coolant, dried the weep hole and plugged it with a small amount of that solid epoxy they market to fix holes in gas tanks. I refilled the radiator and the plug held.

It's still holding.
Just an alternative option

Mike

Posted on Nov 26, 2008

302ranger

  • 5 Answers

SOURCE: 1966 Ford Mustang overheating

try to run the water pump without hoses, and add water in the 'in' side, if is powers out the other side, then it's fine. how is your water/coolant mix?

Posted on Dec 01, 2008

MrScary66613

Travis Humphries

  • 1990 Answers

SOURCE: 1999 Jeep Grand Cherokee Heat not working

Change your Thermostat.

Posted on Jan 17, 2009

Anonymous

  • 9 Answers

SOURCE: 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

Posted on Jul 27, 2009

Anonymous

  • 1 Answer

SOURCE: Water Pump leakes from steel tube.

when installing new o-ring on tube, lubricate o-ring and stick it in water pump. Then pull pressure back on tube and then tighten hold down clamp. problem solved

Posted on Oct 25, 2009

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4 Answers

The blazer has over heated twice in a week. I noticed steam bubbling out of a hole on the top of the water pump behind the pulley. Is the water pump bad?


Very possible that indeed the water pump is bad. These things do have a lifetime, and 15 years isn't all that short a time.

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Have a 02 trail blazer blew rad apart replace


check thermostat in boiling water make sure it opens. make sure it is not fitted up side down, check the radiator pressure with a gauge there may be a leaking head gasket. also check the relief valve on the radiator cap.

Sep 21, 2014 | 2002 Chevrolet TrailBlazer

1 Answer

I have a overheating issue with my blazer. It has a 4.3 liter vortex engine, I replaced the thermostat, water pump appears to be working. Anything else I should look at


take cap off of radiator and crank motor wait for it to get to operational heat and watch in cap to see if thermostat is opening,you will see water circulating threw radiator if this doesnt happen then water pump is not working you might also flush radiator out

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1998 Isuzu rodeo running hot. filled radiator & reservoir with water & coolant. There is a oily substance dripping from small hose at the bottom of radiator, dont see any water leaking. Just had...


Replace small hose and clamp, that hose come's from your transmission, goes through another tank in the radiator, to keep the transmission fluid cool, hope this was very helpful.

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2 Answers

1992 ford econoline is over heating


hi this is can be found out by trail and error method only. 1st try replacing the water pump if the problem get solved then it ok.if the problem presits then it the problem is with the radiator.

there may be another problem also.the fam which is cooling the water may be not running properly(reduced spped)due to which the cooling is not proper. please check this also.

if my answer was usefull please vote.

Jul 14, 2010 | 1993 Ford Econoline

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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.

Aug 23, 2009 | 1998 Honda Civic

2 Answers

1997 Cevrolet Cavalier 2.4 liter engine leaks antifreeze


If it is the water pump it will have a rad hose attached to it. There is supposed to be a small hole in the bottom of the water pump. When it starts leaking, it's time to replace the pump. You can do it yourself. A few wrenches and a couple hours is all you need. If you are unsure pick up a Haynes manual for your car when you get the new pump.

Jul 05, 2009 | 1997 Chevrolet Cavalier

1 Answer

98 chev 5.7 #3and#6 clys are missing at ilde to about 2500 rpm


I would test for a leaking intake manifold gasket. WITH A WATER SPRAYER , and the engine running at operating temps and at idle, spray some water where the intake meets the cylinder head. If you hear a little SUCKING SOUND, and the engine smooths out temporarily, thats it Hope this helps

Apr 12, 2009 | 1998 Chevrolet K2500

1 Answer

No heat, replaced thermostat,water pump,heater core, all hose ok


When you put your hand on the inlet & outlet heater hoses are they both hot to the touch ? I mean 'ouch' hot, not just warm.
You might have an 'air lock' in the system if they are only warm, or temp feels quite different between them.
If possible, leave the return heater hose loose, start engine, let it warm up then bleed the system using return hose for a minute or so.
KEEP rad full while bleeding.
tighten hose, then watch the radiator fill hole for signs of air bubbles or frothing coming up thru antifreeze.
If either are present, you may have compression leak !
Another check for compression leak, is put rad cap on, drive around the block twice, let vehicle cool down then slowly remove rad cap & smell at filler hole as cap comes off.
compression leak will smell strong & burn eyes.. & we both know there is only one cure for that situation !!

Mar 02, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

Water leaking


The weep hole of the water pump may be leaking. You see the water drip at the lower part of the front of the engine. After you park the truck, slide under the front of it and with a flash light look at the bottom of the water pump and see if you see a trail of water happening there.

Oct 21, 2008 | 2002 Chevrolet Blazer

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