Question about 1996 Pontiac Sunfire

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Car shakes like crazy when you turn on heat

THe radiator fan seems to have bad bearings. Is this possible, or likely

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  • ezmonee4me Nov 09, 2008

    Thanks alot for the help, I will check it out.

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More likely one of the fan blades has come off causing serious out of balance issue :)

Posted on Nov 08, 2008

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2 Answers

Hello, I got this problem with my 2002 huyndai elantra, this car originally starter this problem, no heat when driving the car, the heat started to work on and off, the radiator looks ok, but 2 days ago,...


Place car on a steep incline or raise front end up higher than the heater core. Now, add coolant to the radiator as needed, with engine warmed up. It sounds like the radiator is lower than the heater core causing an air lock and if that is the case this will allow the air bubbles to escape.

Dec 05, 2013 | Hyundai Elantra Cars & Trucks

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98 vw Jetta GL 2.0 5 spd manual. Grinding noise/crackling coming from front left wheel side. Both at start up but when the car is driving does it as well. I just need more thoughts on it thanks!


That was hard to hear, but my first thought was the rubber bushing on the top of your strut.
If those go bad, you get a rattle JUST like that while driving.
It can also shake around on start up.

If that doesn't help, other possible solutions may be wheel bearing (hub bearing) or CV axles.

even still, it could be very bad motor mounts.

check into my first guess and let me know.

Do you feel like the alignment is bad now?

Could also be control arm bushings.

Jack the car up until the tire in an inch off the ground and grab the tire in the 9 & 3 o'clock positions and try to shake it side to side. (as if you were trying to turn the steering side to side)

You shouldn't be able to shake it more than a tiny bit. (It should be firm and far from loose)

If it shakes, you can have a look at the top of the strut and the control arm bushings while doing so to figure out which one is messed up.

If neither shake, It may lean toward the hub bearing.

Yet another possible is the steering rack...... but I honestly think its the strut bushings.

Have a helper look at it with you as you shouldn't be near a lifted car without back-up.

Hope this helps.

Jan 28, 2013 | Cars & Trucks

2 Answers

My 99 alero v6 is over heating not leaking ight mite be hoses or thermostat . or head gasket but when it overb heats the smoke comes from the top of the engine


REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP.IF CAR OVER HEATING WHILE IN MOTION.MORE LIKELY ITS THE THERMOSTAT,LOW COOLANT IN RADIATOR OR COOLANT SYSTEM,BAD WATER PUMP,WATER PUMP WEEP HOLE IS LEAKING, WATER PUMP NEEDS REPLACING.CHECK ENGINE OIL,IF OIL LOOKS LIKE MILK SHAKE YOU HAVE LEAKING HEAD GASKET.IF CAR IN PARK AND OVER HEATS WHILE IN A LONG TRAFFIC LINE OR.BANK DRIVE THROUGH COOLANT FAN NOT TURNING ON, BECAUSE THE ENGINE COOLANT TEMPERATURE SENSOR FAULTY.CODE SCAN CAR FOR FAULTY COOLANT FAN RELAY OR FAULTY PCM. CHECK COOLANT FAN FUSE, AND HOT WIRE THE COOLANT FAN TO MAKE SURE ITS WORKING.IF COOLANT FAN DONT WORK WHEN HOT WIRED. COOLANT FAN NEEDS REPLACING. REPLACE BOTH RADIATOR HOSES, REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP.BUY NEW COOLANT ADD 50/50 WATER AND COOLANT.IF ENGINE OIL HAS ANTIFREEZE IN IT.REPLACE ENGINE OIL AND OIL FILTER TO KEEP FROM LOCKING UP THE ENGINE.GET CAR FIX.DONT KEEP DRIVING IF IT KEEP OVER HEATING,ENGINE DAMAGE WILL OCCUR.I HOPE INFORMATION I GAVE YOU WILL FIX PROBLEM.PROBLEM COULD BE LEAKING RADIATOR HOSES BUT CHANGE THERMOSTAT THATS FIRST THING I WOULD CHANGE BECAUSE IF IT CLOSED, ENGINE WILL OVER HEAT AND CRACK CYLINDER HEAD OR CRACK PISTON, COOLANT NEED TO CIRCULATE THROUGH THE ENGINE TO TAKE AWAY THE HEAT FROM ENGINE.

Apr 19, 2011 | 1999 Oldsmobile Alero

1 Answer

Car is overheating. Flushed three times--no improvemrnt. Can run pretty well with heater on and windows open. Doesn't heat up at idle speed. Someone suggested a loose fan belt but it is hard to...


There are 3 common reasons for a car over-heating:
  • lack of coolant due to a leaking radiator hose
  • clogged thermostat-fails to open to allow more coolant from entering the the system
  • bad water pump- although most bad water pumps tend to leak, it's possible to have a bad bearing inside the water pump which in turn would fail to adequately circulate coolant

Mar 13, 2011 | 2003 Chrysler PT Cruiser

3 Answers

Why does my car keep overheating. I changred the thermostat and that wasn't the problem. The car isn't leaking. So can you tell me what the problem is?


Since you say you changed the thermostat, and that wasn't it then possibly the cooling fan is not functioning properly. Or bad water pump,inaccurate temperature gauge, radiator core blocked or restricted. These are just the most common reasons. Good Luck and I hope this helps a little

Aug 19, 2010 | 2002 Lincoln LS

2 Answers

Truck is over heating. changed thermostat. still


Hello, you may have a blockage some where in the system or possible air in the system. Double check your coolant levels, your cooling fans make sure they are coming on. Hope this is helpful.

Apr 05, 2010 | 2002 GMC Envoy

1 Answer

Bad vibration from a stop. worse when you give it gas from a stop with a loud rumbling growl sound.vibration is really bad at lower speeds, going thru parking lots and turns.


Sounds like a bad wheel bearing to me. Jack up each corner of the car one at a time and grab the tire. Shake like crazy on it - if it moves, you've found a bad bearing. It should be solidly on the hub with no play whatsoever.

Nov 07, 2009 | 2003 Kia Sorento

2 Answers

How to tighten radiator fan


Replace the fans and motors as your motors most likely have failing bearings, and may have warped your fans.

Jul 02, 2009 | 2000 Nissan Maxima

1 Answer

Rad fan makes car shake 2003 sunfire


I would check the radiator fan in the car for looseness. If the fan wobbles or moves , Then change out the radiator fan. The radiator fan and motor come as one piece. There is a fan relay also should be replaced.
When turning the key only half way to make the dash fan work, indicates that the dash fan is okay.
The dash fan may make a whining or high pitch noise when engage. Then I would change it out because an internal bearing to the fan is going out.

Good luck

Mar 18, 2009 | 2003 Pontiac Sunfire

2 Answers

96 Deville Overheating....TroubleShooting


did you run a compression check? if so and its good then you have a blockage in the water jacket
if not then you have a head gasket leaking

Feb 26, 2009 | 1996 Cadillac DeVille

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