PLEASE READ THE ENTIRE POST! I am so pissed...my 240 has been overheating....I have been noticing the signs that my car has had a blown headgasket...I called the shop where i had my car done, to see if it was done. They said it is donje, but is still overheating.....I dont know what else it could be, i have all new cooloing system...what else could it be? here is what i have done-new Headgasket/resurfaced head/valves -new radiator, KOYO but not aluminum-new water pump-new thermostat-twin flex-a-lite fans wired up to the fuel pump-new radiator hoses-new radiator cap-flushed and bleeded system-I also have the stock mechanichal fan being used, w/ the twin fans....
edit- PLEASE HELP!!!
OVERHEATING problems...
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IveBeenBad
- Posts: 1138
- Joined: Sun Jan 12, 2003 11:53 am
- Car: 1990 Nissan 240SX Fastback STOCK BIOTCH
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IveBeenBad
- Posts: 1138
- Joined: Sun Jan 12, 2003 11:53 am
- Car: 1990 Nissan 240SX Fastback STOCK BIOTCH
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kittysharkmy240
- Posts: 8
- Joined: Sun Feb 23, 2003 7:33 pm
- Car: 240
on that eng. where the coolent inlet is on the block there are two sensors one is a temp sensore and the other is a coolent temp sending unit if one of those are bad it will send the wrong temp to both you ecu and gauge i think like at you local dealer you can get both sensors for lik 35-45 dollars for both hope this is some help
did your powersteering go out and it make a funny noise... if it did check and make sure your power steering pump isnt missing anything that happened to my car the guy who put my engine in forgot to put the top bolt on my powersteering pump and all that happened if thats what happened just get a class 8 bolt and put it through it and it should not happen again
this maybe a long shot, but perhaps both fan installations are cancellinig each other's "pulse". What I mean, is the mech. fan has a somewhat variable speed 'til the fluid warms up, and also has a different blade design to that of an electric fan (fatter different angle).
At what speeds is this occurring?
At what speeds is this occurring?
I would 1st remove the electrics and run w/the mechanical.
Also, check that your clutch fan is working properly.
To check.1. When car is cool, see if fans turn freely (they should)2. Drive your car to operating temp. Shut it off, (try to spin fans) they should be very hard to turn.3. Check fan for any distortion, chips, etc...
Also, check that your clutch fan is working properly.
To check.1. When car is cool, see if fans turn freely (they should)2. Drive your car to operating temp. Shut it off, (try to spin fans) they should be very hard to turn.3. Check fan for any distortion, chips, etc...
you check for bubbles via that burping hole on your coolant elbow? there's a 10mm bolt that's plugging the hole up. Also did you boil the thermo first to make sure it's working ok? When it was bled, was it bled with the heater control set to hot and then the system properly bled? Is your headgasket installed properly? those are all the normal run of the mill questions that could be the cause of your problem.
180fan wrote:you check for bubbles via that burping hole on your coolant elbow? there's a 10mm bolt that's plugging the hole up. Also did you boil the thermo first to make sure it's working ok? When it was bled, was it bled with the heater control set to hot and then the system properly bled? Is your headgasket installed properly? those are all the normal run of the mill questions that could be the cause of your problem.
i put in a new thermostat. It was bled properly. The headgasket was professionally installed from someone we have known for years.
well have you touched the lower radiator hose? if it's cold it's the thermo. You may want to check that. Also how is your turbo cooled? Your turbo may be running a bit too hot for a single row or the single row you've got may not really be able to keep up with the heat pumped out by your system. Fan's aren't gonna do too much on the highway, air flow's got more to do with that and the heat capacity of the coolant and the ability to dump it from the radiator. Sorry to say it may be your radiator just may not have what it takes to keep up.
180fan wrote:well have you touched the lower radiator hose? if it's cold it's the thermo. You may want to check that. Also how is your turbo cooled? Your turbo may be running a bit too hot for a single row or the single row you've got may not really be able to keep up with the heat pumped out by your system. Fan's aren't gonna do too much on the highway, air flow's got more to do with that and the heat capacity of the coolant and the ability to dump it from the radiator. Sorry to say it may be your radiator just may not have what it takes to keep up.
MY CAR IS NATURALLY ASPIRATED!!!
The lower radiator hose was cold, until i took out the thermostat. I got a new thermostat after that, and it was hotter.
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klattr1
- Posts: 1130
- Joined: Sat Sep 28, 2002 1:18 pm
- Car: GT42R powered S14/KA
- Location: Charlotte, NC
- Contact:
Re: Re: hey
lol, sorry, i wasnt getting confused with another overheating post i was helping someone on.K240 wrote:boost....i have a stock KA...
180fan wrote:lol oops sorry dude i thought you had a turbo cuz of some other guys were talkin bout boost so I assumed I missed that in your post about having a turbo. lol.
Yeah if your lower rad hose is still cold while the upper one is hot, your thermo's junk and not working. Replace and you should be better.
no ive replaced, and the lower hose is warmer now, but it is still overheating....