i have already changed my 195 t-stat, cts, heater core, cap, fan overide so on constantly and still continues to overheat. it doesn't matter what type of driving, heater turned on. it always wants to overheat after about probably 40 miles of driving or so. no leaks other than what comes out of the overflow all the time from getting so hot. i'm think water pump, however nothing ever comes out of that weep hole. any ideas? has plenty of power. i don't have any water getting in my oil or coming out the exhaust, so i don't believe its a head gasket or cracked head.
2006-08-01 17:47:30 · 13 answers · asked by Justin B 1 in Cars & Transportation ➔ Maintenance & Repairs
if this helps at all i have a 94 2.2L cavalier. like i said probably all that is left that it could be is the pump or rad. i have changed everything else. i did also notice before i did the fan override, the fan came on way to late and kicked off too early, it did however do this at certain temps consistantly however not at the right spots compared to other 2.2 94s. but as i said before i have it hotwired and still overheats so something else is going on as well. i don't believe it's stopped up but i could be wrong. it seemed to take the coolant in well when hitting the gas, another reason i don't think it's the pump, but also was a little air in there as well.
2006-08-01 18:19:10 · update #1
Could be the radiator itself
2006-08-01 17:52:50 · answer #1 · answered by scummibear 4 · 0⤊ 0⤋
Take off the radiator cap and start the car and warm it up to operating temperature. If the water circulates, then the water pump is fine, if not, then you will probably need to replace the water pump. If it is okay, then look for regularly spaced bubbles coming out. This is usually a sign of a blown head gasket. Contrary to opinion, you don't always get water in the oil, or oil in the water if you blow a head gasket, or even crack a head. Also check the radiator cap. This is the most neglected component of the cooling system. You already replaced it, so make sure it's of the proper pressure. If it heats up under stress, it could be the cap not holding pressure. Do not remove the thermostat. It will cause the engine to heat up because the coolant does not stay in the radiator long enough to transfer heat, (this is why race cars use a constrictor to slow down the flow thru the radiator.) If you replaced the thermostat with anything lower then 180 degrees, then replace it with one that warm or warmer. Today's vehicles are designed to operate with higher combustion chamber temperatures, so if it's too cool, you'll end up running rich, and your mileage will go right out the exhaust pipe. Also, if you haven't flushed and filled the radiator, then do that, too.
2006-08-01 18:28:40 · answer #2 · answered by Thomas S 3 · 0⤊ 0⤋
Depending on the car, you might have a water passage stopped up in the block, key word might. You can try to get the radiator flushed, not the kind that you go to Wal-Mart, Auto Zone or any parts store and buy in a bottle. Go to a radiator repair tech place where they can take the tanks off the end of the radiator and rod(clean) the core out.
2006-08-01 18:14:56 · answer #3 · answered by ghettodiplomat2005 1 · 0⤊ 0⤋
It's probably not the water pump, or it would overheat way before 40 miles.
If your car has over 80,000 miles on it, the radiator is probably gummed up. This is normal. If so, replace the radiator, or at least do a flush/refill.
2006-08-01 17:57:48 · answer #4 · answered by BobBobBob 5 · 0⤊ 0⤋
If there aren't any leaks around the WP it should be okay but still worth a check. If not then it could be sludged up oil return channels causing poor lubrication leading to over heating.
Hows the oil preasure?
2006-08-01 17:54:48 · answer #5 · answered by Chad D 2 · 0⤊ 0⤋
well just think of the componets of the cooling system... you have the radiator... the thermistat ... the water pump... and the heating core.... and of course the fan..... ainti freeze is at the right pressure? did you fill it up the system right .. make sure there is pressure in the system that you have enough anti freeze and that the water pump is pushing everything through
2006-08-01 17:56:32 · answer #6 · answered by beretta2211 2 · 0⤊ 0⤋
Sounds like the water pump and it doesnt have to leak to be bad. Also your radiator could be partially stopped up.
2006-08-01 17:53:27 · answer #7 · answered by fireman_4_69 4 · 0⤊ 0⤋
It could be most any combination of things, some automobile manufactures have put out a recall on some models for that particular reason. E-Mail me with your car description and I'll look it up.
2006-08-01 18:07:38 · answer #8 · answered by wolf42064 1 · 0⤊ 0⤋
What about the timimg chain or belt? The water pump could be.
2006-08-01 17:53:28 · answer #9 · answered by Pablo R 2 · 0⤊ 0⤋
You should get a shop to look at it. They will usually tell you whats wrong with it for no charge.
2006-08-01 17:53:27 · answer #10 · answered by Brandy B 2 · 0⤊ 0⤋