2005 Chevrolet Cavalier 2.2L Ecotech.
I have a 2005 Chevy Cavalier it has been overheating. My temp. Gauge has gone haywire. My
cooling fan has not been coming on. My upper radiator hose gets hot. The lower hose stays cold.
I have already changed the thermostat. Can you tell me what I need to do to fix this problem.
Answer:
Assuming you have owned the car for some time, then you know it is getting too hot.A plugged
radiator could be the cause, as well as air in the cooling system. After changing the t-stat, if there
is air in the system, it may look like there is no change to your problem, when in fact the t-stat
may have fixed it. The cooling fans not coming on could be a blown fuse, bad relay, bad fan
motor, temp sensor, PCM, etc. Many things can cause the cooling fans to not come on. That
would be the circuit to look at first.


1989 Chevy Cavalier Z24.
Engine size: 2.8L v-6.
Replaced radiator hose,split. Removed t-stat and ran engine. Still overheating
Question: Should I try replacing the water pump? There has been no sign of a leak except the broken
hose that was replaced. I am also not getting any heat inside the car even when it was overheating.
Answer:
First of all, you should not run an engine without a thermostat because it will not allow
the engine to get to operating temperature. If you've got a new thermostat, install it
and go from there. If you still have an overheating issue, it could be a water pump.
The vanes on the water pump impeller corrode over the years and end up not
pumping any coolant through the engine, so that is something to check. If you have
an extreme overheating issue, there's the possibility of head gasket failure, warped
or cracked cylinder heads, etc.

Since you have no heat inside the car, there could also be a restriction somewhere in
the coolant passages or heater core. You can get a cooling system tester that
pressurized the system so you can check for leaks. If you lose pressure and see no
external leak, the coolant is going elsewhere, like inside the cylinders or dumping
straight into the oil pan. Lots of things to check for this issue.


1996 Chevy Cavalier check engine.
Question = My car kept was leaking antifreeze and had keep refilling it with water.
So i put radiator stop leak in it and it quit leaking for a couple of days but then
started leaking again but not as fast as it was before i put the stop leak in. I need
to get this fixed before winter. Any suggestions?
Answer: Yeah I would say that you definitely need to get that fixed before winter.
One thing too, I would NOT recommend just adding water when you top the
cooling system. As you lose antifreeze and just add water, the boiling point of the
mixture drops more and more and the chance of overheating the engine becomes
more likely.

I also do NOT recommend using stop leak products because they gum up the
cooling system and just cause additional problems. What ever you have leaking
needs to be fixed as soon as possible, whether it be the water pump, radiator,
head gasket, hoses or heater core, it needs to get fixed soon! You need to have
a pressure test done on the system to find the leak.
;

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Chevy Cavalier Overheating- Check Engine Light On

Live Chat:

Question: Chevy Cavalier spitting water from head bolt. Over heated and will not start. Help.

Answer: Is the coolant coming out of one of the front cylinder head bolts?

Yes

It sounds like that bolt has snapped inside the cylinder head. You are going to have to remove the head and then remove the bolt.

Any hopes of it starting?

How long was the engine or heating?

Just overheated goig up hill n we stopped.

If you're lucky the engine is not blown. Antifreeze may just be filling that cylinder causing the engine to not start. If you remove the sparkplug and
crank over the engine, you should see ante freeze is coming out. If so, the engine should be all right after repairs are made.

Ok thank you