Question about 2001 Chevrolet Venture

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Overheating van is overheating while driving. We pulled over and checked the radiator and the overflow. the antifreeze in the overflow was just bubbling like crazy. checked it and the antifreeze was cold and the radiator cap was cool. the heater isnt working either.. sometimes it gets a little warm, then its cold. usually its cold. we just had a new thermostst put in and had the coolant flushed so they are both new. what could be the problem? Please help!

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  • Chevrolet Master
  • 2,020 Answers

Your heatercore is blocked up.

Posted on Jun 27, 2017

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: car is overheating

I had the same problem. I replaced the water pump, radiator, thermostat, & the bottom "t" hose, plus new coolent. Turn the car on over flow right away. After many hours of trying to keep the coolent in I figured out I had an air pocket in the heater core, because no coolent was reaching there. No heat in the cab of the car. So I pulled the heater hose off the thermostat hosing, put my garden hose on the heater hose hole & filled it up. Problem sovled.
I f you have a blown head gasket and the hole is small you can get away with radiator stop leak for awhile, it happend to me and it lasted for years good luck

Posted on Feb 24, 2009

  • 407 Answers

SOURCE: 1993 camaro overheating

make sure all the air induction is in place to the radiator behind the front bumper if its not there that maybe your problem, or blown headgasket

Posted on Apr 29, 2009

  • 5 Answers

SOURCE: 1993 camaro overheating

There is a little hole close to the spool of the water pump, im not sure if its on top or bottom, but once you see that hole start the engine and if water starts leaking out of that hole you need a new water pump.

Posted on Apr 29, 2009

  • 6982 Answers

SOURCE: 1991 camaro overheating

There are two freeze out plugs at the rear of the block (V8) and many v6 engines. If coolant is coming from where you say, likely they have failed. Unfortunately, the only way to reach them is to remove engine or transmission, It's rare that they fail because they are "protected " by the bellhousing, but can still rot from the inside out. There is no sealer known to man that will fix this. It's a shame that you need to do all that work for a pair of $2.00 plugs, but that's what needs to happen.

Posted on May 23, 2009

  • 3640 Answers

SOURCE: radiator over heating.. have tried EVERYTHING..

are your radiator cooling fans working!!

Posted on Sep 01, 2009

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1 Answer

Head gasket or IM gasket? overheating, think there's antifreeze on spark plug threads. drained flushed bled system. new thermostat rad cap. still overheating.


Somebody been using tap water in their radiator? The vehicle is old enough to have a lot of accumulated rust and crud in the Radiator which, depending on relative water quality and location of water pump could over pressure the system and have it squirting into overflow. If the threads of the plug have antifreeze on them it's coming from the OUTSIDE not the inside.

Apr 15, 2014 | 2005 Buick Rendezvous

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93 GMC Safari overheating. This happened spontaneously. Runs hot very quickly when I drive it. There is antifreeze in both radiator and overflow res, overflow res fills up more after driving a bit. ...


It would appear your thermostat is stuck in the closed position , find where it is on your engine, drain coolant and remove thermostat housing and stat, replace housing(liquid gasket OK) and coolant. now run engine, turn heater controls to hot leaving filler cap off, top up any water to max and replace cap now warm up to temp until fan comes on. if all ok replace thermostat with a new one and new gasket, you could also flush the sytem out at the same time with a hose pipe by loosening one of coolent pipes and flush radiator.

Nov 04, 2013 | 1993 GMC Safari

1 Answer

Jacking


engine running too hot.check coolant level, should be 50/50 antifreeze and water.replace thermostat and radiator pressure cap.check antifreeze level in the radiator,coolant level should be just below radiator cap, add coolant to overflow jug,should alway be at the full cold mark.empty coolant overflow jug will allow air be drawed in the coolant system causing overheating.if overheating happens when coming to a long stop.could have faulty engine coolant temperature sensor or bad coolant fan fuse or relay.

Sep 02, 2012 | 2002 Kia Optima

1 Answer

My 2002 Oldsmobile Silhouette keeps overheating. We replaced the thermostat and flushed the system by adding new antifreeze. The air blows cold from the heater when the car starts to overheat. Once


there can be air pocket somewhere you need to bleed system properly. rais the front let is idle bleed it thru bleeding screw. be sure that bubbles are over.

air pockets prevent coolant travel inside system. so it may not reach to radiator, or cabin heater or both.

Nov 19, 2011 | 2002 Oldsmobile Silhouette

1 Answer

Overheating


OVERHEATING CAN BE CAUSE BY MANY THINGS LIKE FAULTY THERMOSTAT AND FAULTY RADIATOR PRESSURE CAP,TOO MUCH WATER IN COOLANT SYSTEM NEED 50 / 50 WATER AND ANTIFREEZE.LOOK FOR WATER PUMP WEEP HOLE LEAK, IF COOLANT LEAKING OUT WEEP HOLE WATER PUMP BAD NEED REPLACING.CHECK FOR LOW COOLANT LEVEL, YOUR RADIATOR OVERFLOW JUG SHOULD HAVE COOLANT AT THE FULL COLD MARK IF NOT KEEP ADDING COOLANT INTO COOLANT OVERFLOW JUG UNTIL COOLANT STOP DROPPING AND FULL COLD MARK, IF OVERFLOW COOLANT JUG WAS EMPTY RADIATOR IS LOW ON COOLANT.WHICH CAUSE AIR IN COOLANT SYSTEM KEEPING THE ENGINE COOLANT TEMPERATURE SENSOR FROM BEING SUBMERGE IN HOT COOLANT WHICH TURN ON THE COOLANT FANS.WHEN ENGINE COOLANT TEMPERATURE GET CERTAIN SET TEMPERATURE LIKE 190 DEGREES THE PCM AND COOLANT SENSOR WILL TURN ON COOLANT FANS, IF VECHICLE OVERHEATING COOLANT FANS NOT WORKING EITHER YOU HAVE FAULTY ENGINE COOLANT TEMPERATURE SENSOR CHECK COOLANT FANS FUSE AND RELAYS. YOU CAN CODE SCAN CAR TO SEE IF YOU HAVE FAULTY PCM, FAULTY ENGINE COOLANT TEMPERATURE SENSOR OR FAULTY COOLANT FAN RELAY.IF COOLANT FAN AND ENGINE COOLANT TEMPERATURE SENSOR OKAY,YOU HAVE CORRECT COOLANT LEVEL IN COOLANT SYSTEM, THERMOSTAT AND RADIATOR PRESSURE CAP BEEN REPLACED, YOU COULD HAVE BLOWN HEAD GASKET CHECK ENGINE OIL LOOKS LIKE MILK SHAKE HEAD GASKET BLOWED ALSO WHEN HEAD GASKET BLOWED YOU CAN DRIVE CAR SHORT DISTANCE START OVERHEATING AND YOU LOOSE ENGINE POWER SUSPECT BLOWED HEAD GASKET.

Aug 04, 2011 | 1999 Oldsmobile Alero

1 Answer

2005 kia sedona 76,000 overheats the engine


My 2005 KIA Sedona started overheating in Winter 2009/2010 and was loosing antifreeze. No leaks from the heater hoses or radiator hose. No pressure in the radiator either.

I had found a site where folks were discussing the same things and someone brought up the rear heater. Apparently KIA has run steel hoses running under the chasis to the rear of the van and these rot.

I looked under the rear at the wheel well and located the lines and they were wet with antifreeze. I traced the lines to the firewall and found where the lines were connected to the coolant system and bypassed the rear heater lines.

I then filled up the radiator and overflow tank with antifreeze and started the van. I rocked the van to get air to move out of the lines and kept adding antifreeze until it was full. then used the overflow tank to top it off.

Hope this helps.

Feb 12, 2011 | 2005 Kia Sedona

1 Answer

Van produces no heat from the heater, engine heats up when driven short distances. Thermostat was replaced, still no heat. coolant level is fine.


Two things are possible. Air in the cooling system, or the system needs to be flushed. You didn't say what year your van is, but I'm sure it use dexcool antifreeze. Dexcool is the orange antifreeze recommended by GM for all their vehicles. The problem is that dex cool attacks gaskets causing gasket failures, especially the intake gaskets. It also can cause buildup in the cooling system causing overheating, or plugging up heater cores. We'll try the easy solution first.We need to get the air out of the system. First, the radiator needs to be higher than the engine. If it isn't, either use drive on ramps or raise the front end with a jack, Remove the radiator cap, put the heater controls on hottest setting, start the engine and let it run. When the coolant gets hot enough, the thermostat should open allowing the coolant to circulate. When it opens, the coolant level will drop in the radiator. Add antifreeze to make it full again. The coolant will drop again and may do so several times. Just keep adding antifreeze each time. continue to do this until the coolant level stabilizes. If the thermostat closes momentarily it will cause coolant to overflow. Not to worry, wait til it opens again and top off the antifreeze. Put the cap back on the radiator and check the heater for heat. If it' still not warm, you may have to flush the radiator.

Jan 05, 2011 | Pontiac Montana Cars & Trucks

4 Answers

Overheating


there is a coolant cap on the overflow bottle check it for seal
i'd just replace it
also if you put the new thermostat in backward the overheating would be significant

Apr 21, 2009 | 2000 Lincoln LS

3 Answers

1988 acura integra overheating


radiator replace or get rodded check radiator temp at top and bottom should be about 10deg differance

Jan 06, 2009 | 1997 Acura Integra Type R

2 Answers

Anti freeze all over the place


it could be antifreeze that was on the frame after changing the radiator the best way to tell is run car through a car that has the bottom wash or in a self wash and on... rinse... spray the area around radiator ...then check again later for antifreeze on ground

Dec 11, 2008 | 1992 Oldsmobile Ninety Eight Regency

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