Need some serious help(Overheating/Gas)

SON240sx Automotive
1

Hey thanks in advance for taking the time to look at my issues.

My car will over heat driving normally after 10-15 minutes between 2-3k rpm.
I have replaced the Water pump/thermostat brand new and have put in a different used rad. I still have a heating issue. The hoses seem to be in good condition and have been replaced since factory though not by me. I do seem to be losing a “Small” amout of coolant though it could just be from overflow. I have no idea what could be causing this issue. During my driving home from work thismorning I pull my car over into a parking lot as it is overheating and I find that the top rad hose has good pressure and is hot, however lower rad hose has no pressure and is icecold.

My other issue is injector #4 seems to have a leak in it and though I expected to get some lower gas milage I am getting like 150KM to a tank of 91 or 94. I dunno if these to problems are interrelated I really got no idea how that stuff works inside the motor.

If anyone has any other insight such as if thats the right amount of gas I should be losing(Dont worry I am replacing) or if I got another leak as well that would be greatly appreciated.

Thanks
Kyle

2

Try hooking up a powerwasher(not crazy pressure though) to your heater core hoses, it could be clogged bad, ive had that problem before

3

you sure that the used rad you put in isn’t clogged? sounds like a blocked rad to me. i’d try swapping it with a known good one first.

4

I cleaned it out pretty nice and it ran through pretty solid. If not ill be running chase down tonight!

5

You might have a blown head gasket. Go to a garage and get them to do a leakdown test. One of your cylinders could be pressurizing your cooling system.

6

sounds like a faulty thermostat… or rad… It wouldent be the heater core… as that doesent cool the car… that just supplys heat for the cabin… its either a thermostat or bad and cloged rad…

ALSO if its a bad head gasket you can take the rad cap off and see bubbles comming to the top… I wouldent suspect the head gasket tho… because the lower rad hose would be warm… Somthing is preventing the coolant from flowing…

7

The heater core can have a part to do with it

but yeah that rad is probably fucked

8

its your head gasket, check your oil… does it look milky? do you see any forgien wet spots under where your head meets the block??

9

Oil is mint.