The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

car gettin too hott!

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

boosted-dsm

15+ Year Contributor
121
0
May 10, 2006
Ft. worth, Texas
ok i just got my car running..

my car has a few kinks im still trying to work out.. but my biggest one that im most focused on is my over heating prob.. im not lettin it COMPLETLY over heat. but when its gets about 2/3 the way up or a lil more.. i pull over.. wait a min to let the turbo time.. and shut her off

well.. i replaced the upper raditor hose ### it was seepin at the raditor. i replaced the raditor cap ### it was hissin. ok so the overflow bottle is bowling.. well after replacing all that. the overflow bottle still bowls.. the new cap hisses..but the top hose stopd seepin that i saw of.

the car is gettin so hot.. that the overflow bottle is drippin out the dump tube and smoking*water vapors* out of it also...

the only thing i can think of is.. replace the thermostat.

also i need todo a raditor flush.. so i have only beeen using water so far. maybe ill do the flush.. use 50-50 mix anit-freeze and slap a new therostat in there.. IM HOPEING that will solve the heat prob. also im replacing the heater hoses. ### i had a gas leakage from my fuel filter i tought was water leaking from the heater hose beacuse it was drippin from right under it. so i get my new hoses in tommorow from mitsu. i used one of the old hoses and rerouted the hoses so my heater doesnt work.. i have it reciruclating thru the motor.:dsm:
 
Your overflow resivoir shouldn't be a problem, and need replaced. If its still boiling out, i'd check to see if you got a good radiator cap(i've got a bad one from advanced auto before)(you can also try one with higher pressure) Check to see if your thermostat is opening, but if you have hot coolant seeping out of your top radiator hose, i'd say it's flowing. Also check to see if your fans are turning on. Have you burped your system to make sure you just don't have a pocket of air in there?
Definitely do a good radiator flush, i think i bought a kit from advanced for like 20 bucks, hooks up to the hose and the radiator cap.
Other then that it'd be down to the headgasket and waterpump, but let's hope its not that!
Good Luck
 
ok how do i check to see if the therostat is opening or not?

i didnt replace my overflow bottle i was just stating that its still bowling

i have a rebuilt head on it. so i dont think its the headgasket.

im sure its not the waterpump ### i have pressure.. i think i have too much pressure.

im not sure if the cap is anygood or not.. looks good. visually.

so ill do the flush in the morning.. i have a 4dollor one from auto zone.
 
Okay, if you just put a rebuilt head on there, was it milled/machined? What kind of headgasket and studs did you use? torque them down right? It's still possible if the head is uneven or the gasket is shit. (especialy if you've been overheating it can crack it)
Yeah more then likely it's not the water pump if coolants running, and not wineing or leaking or anything there.
To check the thermostat is easy, if your car is at normal operating temperature, does the upper radiator hose get pretty damn hot? If your running it without the cap on, do you see flow? You can take it out and put it in some boiling water to see if it opens up.
How did you fill up your coolant? did you fill it up and leave the cap off and let it run, then burp it and refill it?
Did you check your fans?
If your building up a lot of backpressure in your coolant, like I was, I would slowly loose enough coolant til about 75-100miles it'd start to overheat(although the whole time coolants boiling out i'm still running below normal temperature..). It turned out to be my headgasket, i think exhaust gasses were flowing into my coolant.
 
i would change the theromostat..pressure test the radiator system and make sure your not leaking anywhere and that will help you narrow the issue
 
i bought the car with the rebuilt head.. i asked the guy that sold it to him. he said the timing belt snapped and bent all 8 intake valves. so he had the head rebuilt and used ARP had studs on it. im postive its not a headgasket. but being that i didnt install it.. there is always that possibility.*sp*

i only have ONE fan.. the AC fan on the left. so im thinking that may be one of the issues.. the fan DOES work. i normally run the car with it on all the time. but the prob im having with the gettin too hot. is.. in only maybe a mile or 2 and it start to creep to the red zone.
 
That get's hot pretty fast. You'll definitely want to goto a junkyard, or ebay, or whatever your pleasure is, and pick up the passenger side radiator fan.
 
blackbyrd said:
That get's hot pretty fast. You'll definitely want to goto a junkyard, or ebay, or whatever your pleasure is, and pick up the passenger side radiator fan.

i have the passanger side fan.thats the AC fan. i NEED the driver side.. the ENGINE fan.
 
boosted-dsm said:
i have the passanger side fan.thats the AC fan. i NEED the driver side.. the ENGINE fan.

Odd my passenger side fan is the radiator fan, and the drivers the a/c condensor.. Haynes manual's diagram says the same..
 
Just bought my 91 Eagle Talon 2.0 N/T two weeks ago.
Had overheating issues it in similar to yours.
Has a rebuilt head recently put in (<5k miles), and a new water pump (<1k miles)
Car comes from family friend who was the only owner and babied this car, only 115k miles for a 91 not too bad.

Overheating when I drove 20-30 min on the highway or uphill for about 5-10 min. Basically once the engine gets working really good.

After new thermostat and radiator cap temps dropped from 3/4 to 1/2 w/ an occaisional 2/3. I then used a Prestone Radiator Clean from Walmart for around $4. This was the kind u put in ## radiator drive for 3-6 hours (kind of hard to do when u have overheating problems of course...) then flush and fill, flush and fill again.

After all that made sure to fill halfway (best guess), leave the cap off the radiator and idle the motor to 1/2 on the temp gauge, add fluid as needed until it stays full. Keep watching the temp and let it idle a bit longer as long as the temps stay safe.

The longer the cap is off and engine is running the more air bubbles you'll be able to get off, but you MUST keep an eye on the temperature.

Hope it all helps you out.

Mine sits at 1/3 most of the time

*EDIT* BTW No A/C on my car, so the main fan is passenger side, A/C fan goes on drivers side. If you're hooked up on the wrong side, I remember reading the Driver's side is set to go off based on A/C temperature, so switch sides and use the passenger plug if u have a single fan. *EDIT*

- Charlie
 
OK.. IM OFFICALLY PISSED NOW...

i have changed EVERYTHING that has todo with the coolent shit..

upper raditor hose.
cap.
therostat
heater hoses
50/50coolent
flushed system

now the temp doesnt get AS hot.. just on the outside of the temp pic on the guage.. but my overflow bottle STILL bowels!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! OMG..

the only thing in i can think of now is the ####ing HG or something is cloged somewhere.. my ####ing flush came out as clean as it went in....####!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

im so mad right now.. #### #### #### #### #### ####... i tihnk im gunna call around see how much it would cost to do a pressure test on the ####ing raditor. its like the only option i have left.

this is what i did... on my flush.. as the directions on the prestone raditor coolent flush bottle for 4 bucks.

emptyed my water out..
put the flush in and filled the rest with water
ran it for 10 mins AFTER is was fully warm
let it cool off..
emptied it.
filled it with water
ran it for 10 more mins after it was FULLY warm
let it cool
emptyed it
changed the therostat out
filled it with 50/50
let it warm up..held temp for like 15mins idling
drove it about a mile..

temp stayed normal while i was driving it normal.. in 3rd gear. til i gave it some boost. then creeped up just to the outside of the pic in the middle.. and held it ther for the whole mile i drove it around the nebiorhoods..*cops were out..i have no plates..tried to avoid them,school was gettin out*
drive it back home.. temp stil at same spot.. let it time down. killed it.. overflow bottle still boweling.. drippin half as much, not nearly as much consatation*sp* as before either.
 
Have you done a compression test yet? If so what numbers did you get? Have you done a hydrocarbon test? If not, make sure you do that, it will tell you if exhaust gases are getting into the cooling system, therefor heating up the coolant. Try both of these.
 
i need to get those tests done.. i called a shop they said they would do both tests for 36$ for both.

monday im takin it down to get ti done. see what happens.
 
did you get the fan working? maybe that's all that is malfunctioning. Make sure both fans turn on. Drive it around again and as soon as it starts overheating, turn on your heater and try to hear if the fans go on and check if the temp drops. Chances are its just your radiator fan, they seem to work whenever they want on my car so I just replaced both with slim fans that I turn on drom inside the car after the car warms up. Plus I don't run a thermostat on my car.
 
i have ONLY 1 fan.. the LEFT side fan....*passanger side*

it works..

ive been talking to a friend and he said that all my signs im having not only with my overheating prob.. is all leading back to the HG may be blown.. monday im going to get it compression tested. to find out and hyrdocarbon tested also.
 
boosted-dsm said:
i have ONLY 1 fan.. the LEFT side fan....*passanger side*

it works..

ive been talking to a friend and he said that all my signs im having not only with my overheating prob.. is all leading back to the HG may be blown.. monday im going to get it compression tested. to find out and hyrdocarbon tested also.


well if you keep on overheating your car like you are, you are going to eat your HG if you haven't done so already. Check your compression and I would also get another fan.
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

Back
Top