HELP!!!! overheating :(

[ITSUMO]

ok so the other day my car started to overheat so i whent to nissan to get a new therm put that in and it still overheated (springs in motor and the other thing to the pipe) so i got a new waterpump still the same. when i was flushing the coolent no water was coming out from the bottom pipe where the therm is at only a small streem and it kinda looks like its throwing up after i shut the car off. i put all the hoses back and filled the rad with water and let it run the top hose is not getting any water (i was squeezing the top hose and no resistance) i shut the car off and the top hose looks like the walls of the hose was gettnig sucked in. did i do some thing wrong? is the term put in wrong where sould that little bypass thing on the term be placed
my friend told me that it might be the rad but another friend said that if the rad is not leaking then it sould be fine. i parked the car all day today and no leaks anywere. any help would be great. thanx

[s13gonwild]

bad radiator...its sounds like its clooged..

[ITSUMO]

i hope is a bad rad...
but would the bottom pipe no push out any water? when i was bleeding it? shouldnt the water shoot out? cuz it was just like small streems.... then after my friend shuts of the car the therm pipping looks like it threw up water.

also to add to this problem. cuz ive read like over 8 pages of "overheating help post" i dont have a mix of oil and coolent, no white smoke,

[s13gonwild]

thats a blown head gasket....when the oil mixes with the water....just get a new radiator.

good luck

[altralosix]

How are you purging the air? Just making sure you're not getting a huge air bubble...

Put a funnel in the radiator, fill it up as much as you can.
Open the bleed screw, pour more water into the funnel.
Keep filling until the bleeder shoots water/coolant.
Replace screw.

I was rather confused on the process when I tried to do it the first time from reading people's directions on here. If it's not an air bubble, yeah get a new radiator. I just got a new one from radiator.com for $118 shipped overnight. I wasn't too sure how well I could trust a radiator so cheap, but so far so good. It's entirely metal, no plastic tanks like the stock radiator. I would have gladly put in a Koyo, but couldn't afford $320+ to get my car running again at the moment.

http://pload.losix.com/IMG_3339.JPG

edit: After reading your post again, it really does sound like you're not getting it totally filled. I would take off the upper radiator hose and pour water down that to make sure the engine is getting totally filled, then put it back on and follow the instructions to purge air. It might take a few episodes of driving, overheating, and purging to get all of the air worked out of the system. If that still doesn't solve it, then yeah I would guess there's a serious clog somewhere. If it's not in your engine, I would take the radiator to a radiator shop to see if they can do anything to clear it out before you spend the cash on an entirely new one.

If you need any help getting the radiator out, let me know. I still have a bunch of pictures from when I did it to my S13.

[nightwalker]

pretty simple, pull out radiatoe, put a hose into the top. Water should be gushing out the bottom. If it's not gushing, there's a clog. A small clog can wreck havoc too.

[Dream240]

I would take off the upper radiator hose and pour water down that to make sure the engine is getting totally filled, then put it back on and follow the instructions to purge air. .......If it's not in your engine, I would take the radiator to a radiator shop to see if they can do anything to clear it out before you spend the cash on an entirely new one.

Why do I still hear guys saying to remove the upper hose and then fill the radiator through the upper hose? :wtf:
THE RADIATOR CAP THE HIGHEST POINT OF THE RADIATOR!!! I mean just look at the damn thing....it's obvious the radiator designers would have had some common sense when creating the radiator and put the fill point at the highest spot in the design!!!!! sheesh!!

And just so you know, NEVER try to rot out your radiator, or have it serviced at a radiator shop, our radiators are very thin and have plastic tanks, not an ideal setup for rebuilding or overhauling them. Just look online for a good OEM replacement with a warranty for about $150, should give you about 100k miles at least before it takes a crap.

Aha here you go, all you need: http://www.drivewire.com/nissanparts/catalog/nissan240sxradiator.html?source=OverNissan240SX&OVRAW=240sx%20radiators&OVKEY=240sx%20radiator&OVMTC=standard

[altralosix]

Why do I still hear guys saying to remove the upper hose and then fill the radiator through the upper hose? :wtf:
THE RADIATOR CAP THE HIGHEST POINT OF THE RADIATOR!!! I mean just look at the damn thing....it's obvious the radiator designers would have had some common sense when creating the radiator and put the fill point at the highest spot in the design!!!!! sheesh!!

And just so you know, NEVER try to rot out your radiator, or have it serviced at a radiator shop, our radiators are very thin and have plastic tanks, not an ideal setup for rebuilding or overhauling them. Just look online for a good OEM replacement with a warranty for about $150, should give you about 100k miles at least before it takes a crap.

Aha here you go, all you need: http://www.drivewire.com/nissanparts/catalog/nissan240sxradiator.html?source=OverNissan240SX&OVRAW=240sx%20radiators&OVKEY=240sx%20radiator&OVMTC=standard

This is true. I don't know why, but it just seemed like a good idea to make sure the engine was getting totally filled by lifting the hose and pouring directly into that. If the radiator is clogged in some way, at least you KNOW you're getting the engine filled with coolant.

The radiator cap isn't the perfect highest point though, as demonstrated by our need to purge air through the bleeder screw. If the radiator cap, and hose leading to it, were that perfectly higher we wouldn't have the need to bleed. I do get what you're saying, but I have flushed cooling systems on cars that didn't need any kind of screw removal to get rid of air. So you can't say the design of filling our cooling system is common sense.

I know it's impossible to replace a tank on our radiators, but I wasn't aware it's impossible for a professional to flush them out to try to relieve any blockages.

[Dream240]

This is true. I don't know why, but it just seemed like a good idea to make sure the engine was getting totally filled by lifting the hose and pouring directly into that. If the radiator is clogged in some way, at least you KNOW you're getting the engine filled with coolant.

The radiator cap isn't the perfect highest point though, as demonstrated by our need to purge air through the bleeder screw. If the radiator cap, and hose leading to it, were that perfectly higher we wouldn't have the need to bleed. I do get what you're saying, but I have flushed cooling systems on cars that didn't need any kind of screw removal to get rid of air. So you can't say the design of filling our cooling system is common sense.

I know it's impossible to replace a tank on our radiators, but I wasn't aware it's impossible for a professional to flush them out to try to relieve any blockages.

The highest point I'm referring to is for filling the radiator, not bleeding the system. Are you saying to disconnect the hose from the radiator and then fill that end so the fluid goes into the block? hmm....don't see the point of this. What I meant for the servicing, when you rot out or use flush systems on a radiator, you are using a chemical that's designed to break up the rust deposits, well in thin radiators when you do this you have a greater chance of eating holes into the already thin metal of the radiator. Sure you'll probably flush out the clog but in the process you end up creating a new weak spot in the radiator, and when the system pressurizes, a leak will most likely present itself. Then you have to replace the radiator. If you know anyone that works at a rad shop, ask them, do they service them more than recommend a replacement unit to the customer? Trust me they replace more than they repair. At least in newer cars.

[ITSUMO]

thanx for every ones help and i got a new rad and every thing is fine now. once again for every one who posted in this thread to help me out THANX.... :wavey: :wavey: :wavey: