nissan 240sx overheating

[roger75]

hey everyone...i have a 1991 nissan 240sx that just recently began overheating on me, it has a brand new water pump, new thermostat, and new radiator cap and it continues to overheat. anyone have any ideas on what it can be and how to fix it?

[slyedog240sx]

head gasket most likely.

[roger75]

any idea how much that will cost?

[hazukijitsu]

Its all based on labor.

[jeff420]

was the cooling system properly bled? are you sure there are no air bubbles? if its not that then its most likely the headgasket. if you have to ask how much its gonna be i assume you dont know how to do it yourself so id call a shop and get a quote.

[nissanracer300zx]

Is there oil in the coolant reservoir?

[roger75]

no i meant the gaskets themselves because i wasnt on my comp i was logged on through my phone

[roger75]

no there is no sign of oil at all kn the coolant reservoir

[sloweighty]

when you change all of those parts and when you added the coolant, did you bleed the air in your cooling systems

[jeff420]

autozone and most parts stores have websites that you can look it up on. oil and coolant dont have to mix for the headgasket to be bad.

[roger75]

i mean i did bleed both but what do u call proper i wann a make sure i did it right

[jeff420]

proper means you got all the bubbles out, theres probably 189264563853495656345 threads on how to properly bleed the coolant system. id check some of those and then try bleeding the system again.

[driftneil]

Damn bro help him out...it's quick. Put your car on a hill, nose up. pop rad cap, fill to max, and fill overflow tank. put heat on high and let therm open. fill till it stops taking fluid them top off and cap.

[SirSilvia]

Its all based on labor.

aint that the truth, $6.00 for a gasket and $175 for the labor.but yeah might just be air in the system.

[driftneil]

Damn bro help him out...it's quick. Put your car on a hill, nose up. pop rad cap, fill to max, and fill overflow tank. put heat on high and let therm open. fill till it stops taking fluid them top off and cap.

Or there is a bleeder screw next to the intake mani.

[hazukijitsu]

I had the same symptoms. Checked my oil cap and there is water in it. Mechanic told its better to get another engine because headgasket would cost $1200!

[BenjiD]

It's not uncommon to see a little milky on the inside of the oil cap. Try pulling the stick and look for the milky there. also unusual amount of coolant dissapearing with no puddle under the car.

[hazukijitsu]

There was bubbles in dip stick too. Also my reservoir tank was being emptied quick.

[BenjiD]

Keep a close eye on the level in the rad itself. Top it off and go for a drive the recheck.Also look for excessive smoke from the exhaust. Like it does when you first crank it on cold mornings. Also there is a old hot rodder trick where you hold a dollar bill to the exhaust tip. It should push the bill away if it sucks it to the tip it's a bad sign. Iv'e never tried it but I have seen it demonstrated