Question about 1997 Chevrolet Camaro

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My engine is over heating when I turn on the heat to let the engine cool only cold air is coing out

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Check your coolant level very likely it's low...after re-filling, check everything for leaks...coolant you lost had to come out somewhere.

Posted on Jul 12, 2009

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Posted on Jan 02, 2017

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3 Answers

My 2000 jimmy has heat problems. the heat goes from cold to hot to warm to cold etc. what could the problem be?


If the temp gauge is now more stable, the problem is in your heater system, not the engine cooling system.

Sep 12, 2014 | 2000 GMC Jimmy

1 Answer

No heat in front but heat in back


air trapped in cooling system. Loosen cap, cold engine, fill rad & res. run engine at 2500 rpms to spin pump fast and it will purge out rad cap. tighten cap and keep res full until engine cools down and sucks coolant into rad.

Jan 09, 2014 | Mercury Villager Cars & Trucks

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No heat engine overheating


sounds like a bad thermostat its stuck shut causing overheat and no hot air in the car make sur to bleed air out of cooling system after replacing cooling system

Dec 11, 2013 | Infiniti FX35 Cars & Trucks

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Expedition that has heat at first but then turns cold


First thing to do is check your engine coolant level. If it is low in the radiator, it may not be filling your heater core fully, and so fast air cools it down. Do not open the radiator while the engine is hot! Wait till it cools down.
Also, you don't say what year it is, but I assume it has a temp gauge? Check to make sure the gauge reads at least 180F (about 80C) after you're sure the coolant is full. If it is reading low, you will need a new thermostat.

Dec 01, 2011 | Ford Cars & Trucks

1 Answer

1999 denali dummy gauge turned on, vehicleoverheating gauge started to show hot, attempted to turn heater on to releave heating but heater blew cold air only.


Your coolant is to low to allow heating...not water to heat up or cool the engine. Check the coolant resevior/radiator after the engine is cooled and then refill with anti-freeze. this should solve the problem...if not, you have a sticking thermostat or a clogged radiator. Good luck

Feb 11, 2011 | 1999 GMC Denali

1 Answer

1998 ford ranger 3.0. Heat does not work. Replaced thermostat then water pump. Still blowing cold air. Coolant streams out of the top of the coolant tank after engine is at operating temps. Temperature...


Hello did you flush out the cooling system while you had you coolant drained?this would be ideal to do at t hat time.Also be sure to bleed All air out of cooling system to avoid air lock.

Dec 25, 2010 | 1998 Ford Escort

1 Answer

No heat air is blowing cold


First you have to identify what causes the problem.
To do this you have to:
1) When engine is cold check the level of coolant. If it is low fill it up.
2) Start engine and check if engine reaches regular temperature. If your engine is not heated enough it means your thermostat does not work properly and should be replaced.
3) If engine temperature is normal, then check the temperature of pipes that go to/from heater core. These pipes are located up the fire wall (easier access is from the passenger side). If pipe/pipes are cold (even engine is worm) it means you heater core is plugged and should be flushed. Keep in mind, flushing the whole cooling system is different from flushing heater core.
4) If pipe/pipes are hot/warm, turn off the fan, switch controller to the hot position, wait for 3-4 minutes and turn on the fan. Note if the cold air blows first or warm air blows first but it cools down in 5-10 seconds. If the air blows cold than it is most probably the problem with blend door or blend door actuator.
5) If air blows warm first and then cools down, then while running engine and remaining the transmission in PARKING position, press on the gas pedal until your engine reaches 3,000 RPM. Check if your heater blows warm/hot air. If it does, then your water pump does not work properly and should be replaced. If the air still cold, I would suggest to flush the heater core.

Oct 22, 2009 | 1998 Ford Taurus

1 Answer

Once i start my car and turn on the heat, it starts blowing in cold air until i get on the road and accelerate more, then the heat starts coming. but once the heat starts it only lasts about two minutes...


Hi Jens,

Two things are happening.

The first is normal. Your heater gets its heat from the coolant ciculating in your engine. In order for it to work, the coolant needs time to heat up a bit. This is true of just about every vehicle.

When it gets cold again is the puzzler.

My advice is to check the coolant level in the radiator.

ONLY when the engine has cooled.

If the level is down, there can be times when there isn't enough water to cool the engine, fill the radiator and the heater core. The result is the heater blows cold air and the engine runs hotter than normal.

So check the coolant. Open the cap. Start the engine and top it off.

Then see if there is a change.

Best regards,
Mike

Oct 16, 2009 | 2003 Jeep Grand Cherokee

1 Answer

Heat not working or diles


You most likely have an air pocket in the cooling system. The heater core on these vans is much higher than the engine and they can be tough to get all the air out of them.

Make sure the coolant in the radiator is full when engine is cold- also fill the overflow bottle to the top. Chock the rear wheels. Jack up the front of the van as far as you can and support with jack stands. Run the engine until it's warm and then hold the RPMS at 2000 for about 5 minutes while checking for heat inside the cabin. You may hear some funny noises like something is trying to come through the firewall forcefully! That's the air pocket moving... you might not hear this also. Once you have good heat inside, let the engine idle- if the air coming form the vents cools off after a couple minutes, the air is still there- keep doing this until the air is hot coming from the vents at idle for more than a couple minutes. Once you have good heat, turn the engine off and let the engine cool completely- at least a couple hours... you will most likely see the level in the overflow drop dramatically. Lower vehicle and make sure overflow is at COLD FULL mark.

Newer Altimas also had a similar situation in which heat would go away at idle- usually not a problem with an air pocket, but Nissan has a bulletin out on putting the correct concentration of coolant/water in the system- these cars are very sensitive to changes in coolant mixture concentration.

Nissan Scope Technician- 10 years with Nissan

Oct 26, 2008 | 1995 Nissan Quest

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