Question about Chevrolet Beretta

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I think the heating core is shot

I start my car and the engine rattles and shakesfor a moment. then as i start to drive smoke starts pouring into the car through the air vents. after about five blocks there is nothing but smoke in the car. How do i fix it?

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  • michael2688 Jun 26, 2009

    well then what is it?collant leaks out moments after i put it in. and there is smoke that smells like antifreeze. i don't know enough about cars to argue when someone says "i think this is wrong'

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If the heater core has a hole in it you will see steam that smells like antifreeze and water and antifreeze leaking into the car.Not smoke.

Posted on Jun 25, 2009

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My 1998 Bravada is leaking water/coolant out the back passenger side of the motor and it over heats plus white smoke pours out the exhaust and water drips out the tail pipe but truck seems to start and run...


You have either a leak in a heater hose or a leak in the hearer core. Fill the radiator and turn the engine on. Let get up to operating temperature. Now you should be able to see the leak. You can take it from there. If it is the heater core, you will probably want to let a mechanic replaoe that.

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1998 corolla , terrible rattle after starting, sometimes ignition would just click. this time the engine "diesled" or kept running even after I took the key out...is it an ignition problem?


Sounds more like an "engine running poorly, needs immediate attention" problem. I would first try to isolate that "terrible rattle" sound. Does it do that at every start-up? or just started? I'm just wondering if it's your starter noisy, or something internal in the engine. Have somebody listen to it when starting and see if you can find it. That is most worrisome. The clicking of the starter is very common to toyotas: the starter itself is almost indestructible, but the solenoid attached to it often needs servicing because the contacts inside tend to wear.
The dieseling you speak of is sometimes caused by too much fuel left in intake after shutting off. Engine keeps turning over and firing from hot carbon deposits inside your cylinders igniting the unburnt fuel. It could be from a rich running condition. Buy a can of liquid Seafoam. 1/3 in gas tank, 1/3 in oil crankcase, and 1/3 poured slowly into intake with car running at a fast idle (may need to bump gas a little to keep it from dying: keep your engine running. May smoke a lot, but its just your engine cleaning out, loosening up the carbon and burning it off. It will keep smoking for awhile, but after a few moments driving, it should begin to clear up. If your engine is in good shape, you may notice the difference immediately in better power smoother performance.

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I have front and rear a/c. it has never blown heat in the back of my van and now i have smoking coming from under the hood and blowing out of the front vents. my front passanger floor board is soaked. what...


Your heater core is shot. Coolant leaking on the floor (wet) and driping onto exhaust (smoke).
Replacement of the heater core is the only proper fix. As a temporary measure , you could disconnect the hoses that run to it , and plug them (or join them together). Engine will run , but you will have NO heat in car. enough of your coolant has probably leaked out to cause engine problems. Make sure it is refilled and air removed from system before driving.

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When driving my 1996 gmc jimmy today, the heater was on and smoke started coming from the vents of the heater system. we turned off the heater and smoke kept coming out and was turning the windshield ...


Your heater core is leaking. if it was left disconnected the engine coolant would have come out immediately upon starting the engine the very first time..

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I hope that you had the proper weight oil installed, at your oil change. If your oil is up to the proper level, and it's rattling ,this is VERY bad. White smoke usually means steam in the exhaust, and that means a blown head gasket. Check your coolant level. I wouldn't drive it anymore......until someone knowledgeable can diagnose it!!!!!

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Heat


The heater in your car depends upon a flow of hot coolant going through the heater core in order to get hot air into the car. If the heater core is partially plugged, it will restrict the flow. If you have a head gasket that is putting exhaust into the cooling system, it will eventually get into the heater core. When this happens there is no coolant in the heater core to make the air warm. If the water pump vanes have corroded away the result will be very poor coolant circulation causing the heater to not blow hot air. If your car is equipped with a heater control valve that is not functioning properly, the coolant flow will be restricted. One or a combination of these factors is likely the culprit in your case.

if the car is not overheating, the thermostat is working fine.... replace or flush the heater core multiple times to try and eliminate sediment build-up.

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