Out of know where my car keeps over heating. It did it like twice a few months ago, and didn't do it since then. Now, yesterday and today it did it again. I noticed the temp gauge is real sporadic, and goes up and down a lot. Also, when it overheats I notice there is antifreeze coming out of the hose by the spark plug closest to the firewall, on the passenger side.
Anyone have any idea what this is?
Heres a couple more symptoms I don't really get. I was running the heat on full blast but it was blowing cold air. All of the sudden it would start BLASTING heat out, and then the temp gauge would drop really fast.
I was also thinking the thermostat, but it just seems different than the regular old sticky thermostat.
It sounds like you have an air pocket in the cooling system. Also a leak. That hose at the rear goes to the heater and if it's not the hose, then the fitting that goes into the intake manifold is leaking and you need a new intake manifold. When it runs does the temp gauge keep going up slowly and at just over haf way up the team gauge, will the cooling fan come on? does it get hot driving or only when you stop for awhile? Post back to let us know.
It sounds like you have an air pocket in the cooling system. Also a leak. That hoe at the rear goes to the heater and if it's not the hose, then the fitting that goes into the intake manifold is leaking and you need an new intake manifold. When it runs does the temp gauge keep going up slowly and at just over haf way up the team gauge, will the cooling fan come on? does it get hot driving or only when you stop for awhile? Post back to let us know.
Hmm, I'm not exactly sure if the leak is coming from that hose, but if it's not its right next to it. I had to replace my coil/plug that was right under that hose because coolant was leaking into it, and shorted it I would assume.
Basically it will run for a few miles, the gauge will be at really cold, then it jumps to about 1/2 mark, and then either slowly goes to H, or just jumps right up there real fast. It does this while I'm driving, or idle.
Also the cooling fan, (the one right behind the radiator right?) does come on.
I would start with a new thermostat. If you intake is black in front and not aluminum, be very careful with tightening the bolts. They have to be tight but if the O'ring gets out of position it can crack the manifold. The manifolds will crack eventually if they're plastic. Mine is still plastic with 152k miles. You could have more than one problem, but lets get it to run at a normal temp first. That may take care of everything except the leak.
The fitting at the rear is metal bonded into the manifold. If the heater hose is not the culprit, the manifold is going to have to be replaced.
I would start with a new thermostat. If you intake is black in front and not aluminum, be very careful with tightening the bolts. They have to be tight but if the O'ring gets out of position it can crack the manifold. The manifolds will crack eventually if they're plastic. Mine is still plastic with 152k miles. You could have more than one problem, but lets get it to run at a normal temp first. That may take care of everything except the leak.
The fitting at the rear is metal bonded into the manifold. If the heater hose is not the culprit, the manifold is going to have to be replaced.
If I put a new thermostat in there will it take care of the overheating, or could that be because of the Intake manifold too? I just want to solve the issue asap. Is there an easy way to SEE if the manifold is cracked?
When they crack, it's usually in the front behind the alternator or closer to the thermostat . To find the leak in the rear, you'll have to pressurize the system and see where the water is coming from. If it's the hose or clamp, just repair or replace whats needed. If it's the fitting, the manifold will need to be replaced even if it's not leaking in the front. Is your manifold black in the front or aluminum?
I'll check what color it is in a minute. I'm actually at work. So, if the leak is in the back by the firewall it means the manifold is warped and not fitting correctly? The car only has like 106,000 miles, so I assume it hasn't been replaced yet.
The manifold doen't actually warp, it cracks or the fitting comes loose at the heater hose. There were some that cracked very early in their use. Mine was run hard as a Sherrif car for it's first 130k and it still has the original. The water ran through a plastic part in front and would crack. they made a change to aluminum front. The heater hose fitting can happen to any of them and wasn't very often.
The manifold doen't actually warp, it cracks or the fitting comes loose at the heater hose. There were some that cracked very early in their use. Mine was run hard as a Sherrif car for it's first 130k and it still has the original. The water ran through a plastic part in front and would crack. they made a change to aluminum front. The heater hose fitting can happen to any of them and wasn't very often.
Oooooh, so there is a piece that the heater hose hooks onto, and that piece then hooks onto the manifold? Then that piece can become loose, or whatever making it so you have to replace the whole thing? That might be it, if I'm understanding you correctly.
Yep, you're understanding me correctly. That part comes loose and like mentioned, it's rare but does happen. If the front is black and you find that fitting the cause, you'll be preventing the occurance when you might be on a trip. I keep that in mibd whenever I go out of town.
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