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Sick Of Overheating!

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Old 08-06-2007 | 05:04 PM
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I have a nice hill by my house that I use to clear the air out of my cooling system, works great.
Old 08-06-2007 | 08:52 PM
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How can we check if it's really the headgasket leaking, will there be a white smoke or white stuff on the dip stick for sure? I didn't have white smoke but i constantly found air bubbles in the cooling system (could hear the bubbles during cold startup). Also tried bleeding it from the bleeder screw a few times but the bubbles come back all the time (or it didn't even come out)
Old 08-06-2007 | 08:54 PM
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Originally Posted by M23
How can we check if it's really the headgasket leaking, will there be a white smoke or white stuff on the dip stick for sure? I didn't have white smoke but i constantly found air bubbles in the cooling system (could hear the bubbles during cold startup)
That could be a sign of a headgasket, if you just cannot get rid of the air andit keeps coming back, you might see some black residue in the coolant if this is the case. One way to check it is to do a leakdown check.
Old 08-07-2007 | 04:42 AM
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Originally Posted by westpak
That could be a sign of a headgasket, if you just cannot get rid of the air andit keeps coming back, you might see some black residue in the coolant if this is the case. One way to check it is to do a leakdown check.

Well said!!! I have heard of people showing signs of a blown headgasket, but were unable to diagnose until a leakdown test was performed...Though I hope this isn't the case for you, it wouldn't hurt to check
Old 08-07-2007 | 05:04 PM
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Originally Posted by Riley07
Well said!!! I have heard of people showing signs of a blown headgasket, but were unable to diagnose until a leakdown test was performed...Though I hope this isn't the case for you, it wouldn't hurt to check
Not sure of where you're at, if you find an auto parts store that loans tools STANT sells a cooling system pressure tester. Basically it fits on the radiator just like a radiator cap and then you just pump it up to what ever pressure you're system is supposed to run at, let's say 12 psi. Once at pressure just watch the gauge for a pressure drop.
Old 08-07-2007 | 05:29 PM
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Originally Posted by fklentz
Not sure of where you're at, if you find an auto parts store that loans tools STANT sells a cooling system pressure tester. Basically it fits on the radiator just like a radiator cap and then you just pump it up to what ever pressure you're system is supposed to run at, let's say 12 psi. Once at pressure just watch the gauge for a pressure drop.
+1
Old 08-08-2007 | 10:55 PM
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Hey guys, sorry its been awhile. Ok sooo the latest is this. I know for a fact I bleed the system perfectly, and its still doing it. Im going to get that pressure tester and try it out. Deep down I feel its the headgasket.
Old 08-09-2007 | 08:47 AM
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Originally Posted by camthman
Hey guys, sorry its been awhile. Ok sooo the latest is this. I know for a fact I bleed the system perfectly, and its still doing it. Im going to get that pressure tester and try it out. Deep down I feel its the headgasket.
Headgasket for a 2003? Are you FI? How many miles? That would suck if our cars have weak headgaskets!
Old 08-09-2007 | 04:48 PM
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If you've been overheating AND trying to add COLD water when still HOT you may have more problems than a leaking headgasket.
Old 08-09-2007 | 08:20 PM
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No forced induction. But there is some black junk in the overflow tank.

Originally Posted by ecorona6
Headgasket for a 2003? Are you FI? How many miles? That would suck if our cars have weak headgaskets!
Old 08-09-2007 | 08:20 PM
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Def not that case. Ill let you guys know when I pressurize the system

Originally Posted by fklentz
If you've been overheating AND trying to add COLD water when still HOT you may have more problems than a leaking headgasket.
Old 11-02-2007 | 10:40 PM
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im having a similar problem.. my car is overheating untill when i drive it.. it is not producing hot air it can only produce cold air.. and ive tried bleeding it.. when you bleed it do u leave the radiator cap on or off??
Old 11-05-2007 | 07:16 AM
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Normally one uses Consult or other software to watch the coolant temperature sensor to ecu [what ecu says coolant is vs the inaccurate inside gauge].

You can see the progression of the thermostat opening if you watch carefully around the 170F start to 194-200F fully open position.

Use an IR temperature gun to measure the temp in upper hose.
Old 11-21-2007 | 12:32 PM
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Are you sure the radiator fans are working?
Old 11-21-2007 | 12:38 PM
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sure its not a bad radiator?
Old 11-21-2007 | 05:00 PM
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Originally Posted by jpc350z
Possible failure modes for a car to suddenly begin overheating (not necessarily what may be causing your problem)
1.Insufficient coolant
2.A leak (maybe headgasket) smoke at exhaust?
3.Bad T'stat (partially opening or not at all)
4.Air in the system( back pressure)
5.A blockage somewhere
6.Bad water pump
7.What else??
8.blown head gasket
Old 11-21-2007 | 05:23 PM
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Originally Posted by go-fast
vw and audi fall off constantly ,they crack in half.and you dont realize till the fans and relays melt down(literally)
Its common with e36 m3s too.
Old 11-21-2007 | 05:26 PM
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Originally Posted by camthman
No forced induction. But there is some black junk in the overflow tank.
Well there you go. You have blockage.
Old 11-24-2007 | 06:48 PM
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Do what I have done in the past on systems you have to burp the air from. Take out your thermastat, drill about a 1/4 hole in it, replace it back in the car and fill it up, then burp it. You will be suprised on how hard it is to get air pockets out. A lot of toyota's and honda's I have messed with. Always having a hard time with air, so i started drilling the holes. Try that and see what that does for ya. Or just take the thermostat out and put it back together and see if you still overheat.
Old 11-24-2007 | 08:16 PM
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Originally Posted by Z1 Performance
watter wetter is GARBAGE
A bit OT here, but I'm going to have to disagree. I used to run straight distilled water and Water Wetter in my racebike and never overheated or had a cooling system related failure. Hardly call that garbage.


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