Car overheating and radiator light on

[Bri7man]

I basically replaced everything - thermostat, waterpump, radiator, and radiator cap. However, the only thing left is the hoses, so I'm hoping that's the cause of the over heating at high speeds problem. Thanks.

I'm pretty sure you're hoses are fine squishy or not but replacing them is always good.

It sounds like a bhg man. Is there any white smoke at all on startup?

If it boils down to it hit me up and we can plan a tear down on a weekend in my garage. HKS mhg and a resurface.

I feel bad dude your trying real hard and it shows and I'd hate to see you sell it. Supra's are by far the most bad ass car out there imho.

I know its not possible for you to do this at you're aptt so I'd be glad to help bro.

lmk

Edit,
Forgot... I have a block tester from napa with dye. It'd tell if you have a leak or not for sure.

 

[Dopamine]

Yea I'm going to replace the radiator hoses, the o ring for the cps, and those sensors i got from you. If those don't do it, then I'll hit you up. There's no white smoke at all, but I do see some smoke coming from around the cps. It might be my power steering fluid or something since it's leaking...

For sure thought I'll let you know!

 

[Bri7man]

The smoke is the oil from the leaky cps hitting your exhaust manifold. Mine does the same thing but I have the kit to rebuild it like I showed ya cost me about 60 bucks including gear+dowel,bearing, O-ring, and seal.

Try the O-ring first $5 could fix it. I'm just going the xtra mile.
None of that is related to you're overheating problems though.

GL bro

 

[soc chaos]

Well I switched out my lower hose, flushed the system, new rad cap, another new thermostat and new coolant and well I just seem to be going backwards because now I overheat just sitting there at idle! Hopefully its just your lower hose Dopamine.

What should the temp difference be between the upper hose and the lower hose? Because my top hose is decently hot/warm nothing to crazy but my lower hose is cold I dont feel any amount of heat. Now I know thats what radiators are supposed to do but still I would imagine some sort of heat in it still.

 

[Dopamine]

Well I switched out my lower hose, flushed the system, new rad cap, another new thermostat and new coolant and well I just seem to be going backwards because now I overheat just sitting there at idle! Hopefully its just your lower hose Dopamine.

What should the temp difference be between the upper hose and the lower hose? Because my top hose is decently hot/warm nothing to crazy but my lower hose is cold I dont feel any amount of heat. Now I know thats what radiators are supposed to do but still I would imagine some sort of heat in it still.

Yea, I'm having the same problem; my car starts to overheat if I stay in idle too long. And I'm still waiting for my lower radiator hose to come in. I noticed a bulge right after the connection to the radiator.

As for the temperature, the top hose was super hot and the bottom was hot. I'm starting to think maybe a BHG, but the only symptom I'm getting is the slight overheating. No milkshake, no smoke, no bubbling from inside the radiator, coolant level is consistent, oil level is consistent, no contamination, no milk-grey ring in radiator cap, the only symptom I'm getting is a slight overheating.

Anyways, after I'm done with my mid-terms and tests, I'm going to take it over to a friend's house to see what's really up (if you're reading this let me know what day is good after this week).

 

[Bri7man]

Friday or Sat would be good, I can at least use my block tester to see if it's a bhg or not, then go from there.

Be careful in the meantime. Don't let it get too hot because then that could lead to head warpage which is no bueno at all.

Carpool or use a relative's/friends car if you can.

 

[paradox616]

you could stop guessing and get a hydrocarbon test done, i had overheating issues, turned out to be a blown head gasket, hydro carbon test will tell you if any combustion gasses are entering the coolant system. from memory it cost me $20 and took a whole 5 minutes.

 

[soc chaos]

Well the whole problem with me is that I live in this wonderfully crappy state of Oklahoma for the time being and most likely no one in a 50+ mile radius probably knows how/has the stuff to do any type of advanced test be it hydro carbon, leak down, or compression! So pretty much I just have to go down the list but it really needs all this stuff to be replaced anyway

 

[Supracentral]

You can order the test kit and do it yourself.

http://www.tooltopia.com/index.asp?PageAction=VIEWPROD&ProdID=7117

It's cheap, easy, fast and 1000 times more accurate than guessing.

 

[paradox616]

Well the whole problem with me is that I live in this wonderfully crappy state of Oklahoma for the time being and most likely no one in a 50+ mile radius probably knows how/has the stuff to do any type of advanced test be it hydro carbon, leak down, or compression! So pretty much I just have to go down the list but it really needs all this stuff to be replaced anyway

we even have the equipment in the bush town i lived in down here in Australia, go ask a few workshops I'm sure you'll find someone that can perform the test for you, or buy the tester.

 

[soc chaos]

Thanks for the link. Granted at this point in time if the radiator doesnt fix it it will be narrowed down to one of two things. Electrical connection or bhg.

 

[ZoomZoomZoom]

Thanks for the link. Granted at this point in time if the radiator doesnt fix it it will be narrowed down to one of two things. Electrical connection or bhg.

Or malfunctioning water pump. Mine was working, but not well, causing the car to overheat when under stress.

 

[S.A. supra]

Sounds like a blown head gasket. thats what mine did it ran fine idled perfect. the problem came when i parked it. After running it I would park it. It would get Little hot and then would boil over through the reservoir. The coolant would be orange. the bhg would pressurize the system and it would pour out the reservoir. They say that there is a kit that you can buy that you can check for exhaust gases in your coolant. i've never used it. Good luck finding your problem.

 

[soc chaos]

well as to an update I now have the new radiator in and still overheating! Since the water pump is not all to hard to remove and such I took the one off the old motor I have and the one that was on the motor I have in the car and well the one in the car is looser then the other one. The interior unit can be turned with my thumb and index rather easily while the other one I really have to crank it. So hopefully it ends up being that and not one of the two other harder problems!


OK so it has been none of the previous stuff!!!! Its the latter of the last two things I had as options wiring or bhg well I just pulled the temp sending wire off and jiggled it and flipped it around and low and behold no over heat!!! I call shenanigans!!! Dopamine if you dont have a bhg try flipping/messing around with the heat sending wire!

 

[soc chaos]

I dont see the reply of which is asking where the wire is but I will say it anyway! It is located under the green pigtail near the therm stat housing!

 

[Dopamine]

I finally got my car up to start again, and it's still overheating. I also got it compression tested and got 145 on all cylinders. The previous owner told me it was rebuilt so maybe he wasn't lying about that.

 

[supraman7mgte]

I have not seen this asked yet I think,
but is your fan/clutch operating?

 

[Dopamine]

I forgot to mention that my radiator light is no longer on. Also I already replaced with another fan and clutch that's in good working condition.

I also have a partial fan shroud, but I doubt that is the reason why my car is overheating.

 

[airhead04]

Ok, so I read the 4 pages, and youve replaced alot of stuff, so....did you burp the system when replacing the coolant? May be dumb question but people forget to do little things like that.

 

[supraman7mgte]

^
Yeah,burp it and see if that does any improvement.
Did you have your radiator cleaned out by any chance?