Hey guys,
The D1 is still having problems with the cooling system. ('97 4.0 gems) As some of you might remember, I'm on Guam a whoping 13 degrees north of the equator. It gets hot here.
Here's the deal...
I can drive for about a half hour, or more depending on traffic and the temp gauge might or might not spike. When it gets hot, I can turn off the AC and that usually helps for a little while. Also (and this is the weird one) when this is happening at night, I can turn the lights off and the temp gauge goes down too.
Electric fan hasn't been running when I turn the vehicle off for the past two days
The radiator went bad last spring, pinholes everywhere, so there's a new one in there, new hoses, new water pump after the previous one seriously crapped out on the road a few weeks ago. T-stat is relatively new, I could probably get a newer one for good measure.
The coolant level has been so up and down over the past several months, after replacing the radiator, it maintained a normal level after a few weeks, same with water pump. (see question two below)
I did have a little luck when the one shop I DO trust on island pulled out the temp sensor and cleaned it free of corosion. everything else I've done myself.
I have not replaced the fan clutch, fan stops when engine stops, so I haven't felt the need. I also haven't done head gaskets, because I don't seem to have any of the classic signs, oil in water, water in oil, leaking around the head etc.
My questions are...
Is it possible to need head gaskets without having any of the normal symptoms mentioned above?
When refilling the coolant after jobs like replacing a water pump or a radiator, is there a trick to bleeding the system of air bubbles?
I can see a little loss every time I check after my bigger jobs where I have to drain and refill the system. my theory was that the system has been purging air bubbles. but now I'm nervous I'm wrong.
The D1 is still having problems with the cooling system. ('97 4.0 gems) As some of you might remember, I'm on Guam a whoping 13 degrees north of the equator. It gets hot here.
Here's the deal...
I can drive for about a half hour, or more depending on traffic and the temp gauge might or might not spike. When it gets hot, I can turn off the AC and that usually helps for a little while. Also (and this is the weird one) when this is happening at night, I can turn the lights off and the temp gauge goes down too.
Electric fan hasn't been running when I turn the vehicle off for the past two days
The radiator went bad last spring, pinholes everywhere, so there's a new one in there, new hoses, new water pump after the previous one seriously crapped out on the road a few weeks ago. T-stat is relatively new, I could probably get a newer one for good measure.
The coolant level has been so up and down over the past several months, after replacing the radiator, it maintained a normal level after a few weeks, same with water pump. (see question two below)
I did have a little luck when the one shop I DO trust on island pulled out the temp sensor and cleaned it free of corosion. everything else I've done myself.
I have not replaced the fan clutch, fan stops when engine stops, so I haven't felt the need. I also haven't done head gaskets, because I don't seem to have any of the classic signs, oil in water, water in oil, leaking around the head etc.
My questions are...
Is it possible to need head gaskets without having any of the normal symptoms mentioned above?
When refilling the coolant after jobs like replacing a water pump or a radiator, is there a trick to bleeding the system of air bubbles?
I can see a little loss every time I check after my bigger jobs where I have to drain and refill the system. my theory was that the system has been purging air bubbles. but now I'm nervous I'm wrong.