Heat issue

seanjhon002 said:
ok joe,

quick question, when doing the bleed, i got warmish hot air, so i dropped to 75 degrees F and let idle for two mins (still warm, not hot), then shut her off to allow to cool off.

do you think i need to repeat the bleed process to get the heat to hot once she cools down, or do you think she(my car lol) is good?
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You have to do it exactly as written. Changing the temperature setting is not as written. Whey you did that, you changed the water flow...
 
this is what it says on the tech article step #17

On all engines

17. Set the heater temperature setting to 24° C (75° F) and allow the vehicle to idle for two minutes.

18. Shut the engine off and allow to cool.

19. After the engine has cooled, add coolant to the degas bottle to bring the level to the cold fill MAX mark.
 
so should i do the proceedure again to make sure there are no air bubbles to get the heat hotter? Because it was warm but not hot
 
seanjhon002 said:
so should i do the proceedure again to make sure there are no air bubbles to get the heat hotter? Because it was warm but not hot
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If it's working right, the heat coming out will be hotter than you can stand before you get to step 16.
 
UPDATE:

Got her running again, good solid heat and everything is good!! Thanks guys for helping.
 
oh..sorry guys lol

so replaced the degas bottle, and t stat, changed radiator hoses. Took me a long time to figure out the bleed system and FINALLY get all the air bubbles out. Heat is working and no more overheating. Thanks for all the help.
 
So been a couple of days and everything was going fine, and all of a sudden temp needle started to climb. Any ideas what it could be?

Changed degas bottle, hoses, t stat. Coolant level is good. Maybe air bubble in there somewhere. Like i said went a couple of days and everything was fine until today, stop and go traffic.

Got after market fan hooked up, maybe fan going bad and not cooling sufficiently?

Thanks guys
 
Standard stuff to check.
Fan: If it only overheats while still or moving slowly (say less than 45 MPH), it could be a fan / air-flow issue.

If it overheats at steady highway speeds (including hill climbing), then it's a water-flow issue. All plastic cooling system parts not yet replaced should be suspect. Unfortunately, this does include the radiator. Also look at the smaller hoses, like the throttle body heater hoses.
 
ok joe, driving home in stop and go traffic again after work just to get her home and no overheat issues? Does that sound strange to you? Air bubble maybe?
 
seanjhon002 said:
ok joe, driving home in stop and go traffic again after work just to get her home and no overheat issues? Does that sound strange to you? Air bubble maybe?
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Are you sure it's actually overheating? Bad coils can give a false overheat and throw the car into limp mode.
 
DANRS112 said:
Are you sure it's actually overheating? Bad coils can give a false overheat and throw the car into limp mode.
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He has an 02. No chance of ETC failsafe mode on gen I, which is not at all the same as failsafe cooling mode anyway (or limp mode which is yet another different mode).

Anyway, he says that the temperature gauge is climbing past halfway, not that he's having any running symptoms.

Is this correct seanjhon002?
 
joegr said:
He has an 02. No chance of ETC failsafe mode on gen I, which is not at all the same as failsafe cooling mode anyway (or limp mode which is yet another different mode).

Anyway, he says that the temperature gauge is climbing past halfway, not that he's having any running symptoms.

Is this correct seanjhon002?
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Weird, I have an 02 that was giving me random false overheats. Gauge would spike, car would limp....turn car off and right back on temp would be normal. Went away after replacing a coil.

Was it something else?
 
HMMM. Never thought that the bad coils would cause overheat, is that a common problem?
But to answers Joe's question, the temp gauge would climb But no smoke, no leaking atifreeze or anything. My aftermarket fan is running fine.

I dont know what the issue could be.

So do you all suggest i check the coils. I had them replaced about 3 or 4 years ago, so maybe they are due.
 
seanjhon002 said:
HMMM. Never thought that the bad coils would cause overheat, is that a common problem?
But to answers Joe's question, the temp gauge would climb But no smoke, no leaking atifreeze or anything. My aftermarket fan is running fine.

I dont know what the issue could be.

So do you all suggest i check the coils. I had them replaced about 3 or 4 years ago, so maybe they are due.
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Joe knows more than me so now I'm 2nd guessing myself.

Though When your car overheats can you turn it off and immediately back on and the gauge reads normal?
 
DANRS112 said:
...Though When your car overheats can you turn it off and immediately back on and the gauge reads normal?
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You guys keep fooling yourselves with that one. It's a matter of how the gauge is programmed to lie to you because all the car makers have learned that most people don't understand that engine temperature is supposed to vary a bit. If you look at the real temperature readings with a scan tool, you'll see that it's still over temp, but just a few degrees cooler than it was.
 
DANRS112 said:
Weird, I have an 02 that was giving me random false overheats. Gauge would spike, car would limp....turn car off and right back on temp would be normal. Went away after replacing a coil.

Was it something else?
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Seems unlikely, but not impossible. I have seen the converse, overheating causing coil failure. I assume that you did nothing to the cooling system just before or after you replaced the coil. If that assumption is correct, then your theory seems reasonable.
 
joegr said:
Seems unlikely, but not impossible. I have seen the converse, overheating causing coil failure. I assume that you did nothing to the cooling system just before or after you replaced the coil. If that assumption is correct, then your theory seems reasonable.
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Well that what sucks, when this was happening it could be days between an occurance and sometimes weeks. Sometimes it seemed tied to when we would use the cell phone in the car. About 2-3 months after changing the coil I flushed the coolant system and replaced the thermostat(the car ACTUALLY overheated)

But before that, when it overheated, fans would kick on high, car would chug and gauge would spike. Turning heat on had no affect. Turn car off and then on and it's as if it never happened.

The last time it 'overheated' the gauge would rise and fall depending on if car was moving or stuck in traffic or if we turned heat on high. Turning car off or on had no effect.

SOOOooo, there was a two month gap(longest there had been) but I never associated the last occurance with the previous ones because of the nature of it. I can't 100% rule out you are right though because I did work on cooling system.
 
So any suggestions anyone. I clearly am up in a rut about it. Today, worse stop and go traffic than yesterday and she ran fine....sigh.....
 
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