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2000 chevy malidu overheats after a few minutes, heater starts blowing clod,

I filled the radiator and the heat came back on and eng. cooled, but only for a few minutes. no water was leaking on ground, what next???

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  • madmaxx Jan 06, 2013

    check oil and see if its milky, that would be another indication of headgasket issues, the water has to be going somewhere

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  • Expert
  • 52 Answers

If white smoke is blowin out the tailpipe its a blown headgasket

Posted on Jan 06, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 3 Answers

SOURCE: 2004 Chevy Silverado Heater blows cool air

Check blend door actuator for operation

Posted on Feb 15, 2009

chuck943
  • 783 Answers

SOURCE: Have a 2003 ford f150 crew cab truck will start to

Problem is most likely the water pump.Have seen several of these doing this on the 5.4L. Impeller fins were damaged on the ones that I have seen.

Posted on Feb 20, 2009

bunnydawg
  • 5158 Answers

SOURCE: 2000 Xterra intermentantly overheats

sounds more like the thermostat may be failing. generally a water pump starts leaking out of the "weep" hole in the casting before it quits. just look at the front of the water pump for a greenish streak or an obvious leak.
if you also suspect you heater core may be getting plugged now would be a good time to back flush it to get rid of some of the gunk.

Posted on Oct 22, 2009

GM Elec
  • 1000 Answers

SOURCE: over heating and radiator leaks. overheats after

The radiator leak needs to be fixed obviously and the cooling fans need to be checked for proper function.
When the radiator leaks, the coolant is replaced by air. The air is trapped in the engine cooling system and can not escape because of the leak and does not allow the coolant to circulate, causing an overheat condition.
The air in the cooling system does not conduct heat properly and caused the cooling fan to not start there by adding to the overheated condition.
Fix the leak, make sure the air is purged from the system and make sure the cooling fans work after the leak is fixed.
Good luck.

Posted on Dec 08, 2009

jturcotte
  • 7722 Answers

SOURCE: 2000 Camaro V6 is running

Blown head gasket or cracked head is likely. See my tips at http://www.fixya.com/cars/r5929960-s_thermostat and let me know if you have more questions.

Posted on Sep 13, 2010

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1 Answer

Why does my 2003 chevy venture over heat after ten minutes of driving from a cold start?


The first thing I would verify is that there are no air pockets in the cooling system. It can look full but actually have air in the system from being drained.
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How to purge air from the radiator


normally the radiator will purge itself as long as the overflow jug remains at the recommended level. warm eng to normal operating temp if you have no leaks it should draw water as needed from the overflow jug when you shut the eng off .. it may take a few times of starting and stopping eng but this method does work.. careful as the radiator fluid is very HOT !!! if no overflow jug is in your system go to highest rad. hose and open the system there.only do this when eng is cool. slowly fill radiator at the cap holding the hose you remove higher than the cap. a helper is needed for this procedure. starting at btm rad hose gently squeeze entire length of hose working your way to the next lowest hose do the same procedure for each hose. heater hoses also need be done reattach hose start eng let idle till normal operatin temp is reached turn heater to full heat . let eng cool then chk level of rad. repeat as needed. good luck .TIP : be patient .

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1 Answer

2000 exsplorer overheats if heater is off


Thermostat is stuck..... try that first. Then look at radiator - may need replacement if calcium buildup is blocking vents and fins.
Radiator shop is best bet - they do this all the time. Had the same problem on an old Chevy - vents and fins were 90% blocked.
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Why would my heater blow out cool air when sitting still and then hot air when going down the road and then it's not all that hot


Try flushing or blowing high pressure air through the heater core lines. its sludge build up and need to be flushed through heater core only. check antifreeze fluid level. only put in straight antifreeze, do not mix. most people do not know what mixture should be, so be safe and add straight, it will not hurt it, i run 100% straight antifreeze and never had a problem or worry about it ever freezing and cracking my block, heads or radiator cracking.

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Car overheats new radiator 2 t stats diffrent eng new water pump, had same problem with first motor cust cooked first motor filled cooling system with radicat plus overheats sitting in shop heats up real...


Okay sounds like you have a clog within the system, first of all, drain the whole cooling system, run clean water thought the top of the radiator, look to see when the water comes out nice clear, replace the lower hose if you have a petcock close that, refill the top of the radiator, until it is full, start the engine, with engine running turn your heater, let the car warm a little, then reopen the petcock or loosen the lower hose and let the water draw out a little until is pouring out nice and fast, then re-close the petcock and stop the engine.
try and get 40% of the water out, and replace it with 50/50 antifreeze fill to the right point of the cars specs.

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The heater blows out cold air only.


check the coolant level in the radiator it may be low
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2004 Chevy Impala no heat from defrost or heater


No heat is often a symptom of low coolant, usually followed by overheat. There are other controls that regulate heater, but right now, re-fill the cooling system with engine running and heater on high, then check for leaks (coolant you lost went somewhere...you need to determine where) Low coolant will damage your engine. Take care of that first, then if heater still does not work, then do diagnosis on that. (if you loose the engine heat won't matter, will it!)

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2000 Mercury Villager w/ heat, no heat, & temp gauge flux


you have air trapped in the system.
Park facing uphill (on car ramps if you have them).
with cold engine, remove radaitor cap and fill radiator.
Fill reservoir.
leave cap on loose.
Turn on heater.
start engine and run until upper radiator hose gets hot (meaning thermostat has opened).
Check coolant level and top off. Repeat until temp gauage reads normal and heat is coming from heater ducts.

go here for villager/quest help.

http://autos.groups.yahoo.com/group/villagerquest/

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