10-15-2008, 05:18 PM
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#1
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GX Member
Join Date: Jul 2007
Location: PA
Posts: 53
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Mystery overheating problem
I have an '02 3.4. When the heat is ON the car runs fine. When the heat is OFF and under normal driving it begins to overheat and all of the coolant leaks out from under the overflow tank. Both heads gaskets were replaced and the coolant system was flushed out 3 weeks ago. Anyone have any ideas?
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10-15-2008, 05:23 PM
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#2
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GLS member
Join Date: Jun 2008
Location: FL
Posts: 3,723
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Who replaced the head gaskets? Something isn't right.
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10-15-2008, 05:29 PM
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#3
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Now a Ford Traitor.
Join Date: Mar 2008
Location: Greenland
Posts: 6,996
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0_o
sounds like a clogged rad, maybe some shit clogged the rad?
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10-15-2008, 05:47 PM
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#4
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Gone but not forgotten
Join Date: May 2008
Location: Lancaster, CA
Posts: 1,254
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^^x2 sounds blocked up...was the proper gaskets used??
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00' Alero Coupe - Baby is wearing: Custom CAI, Pacesetter headers, custom 2.5" exhaust, 62mm TB, MP45 s/c, B&M ShiftPlus, 6500K HID, KYB-GR2, Eibach springs, R1 Concepts drilled/slotted rotors
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10-15-2008, 05:59 PM
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#5
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Hot and Fluffy.
Join Date: Aug 2007
Location: Alberta, Canada
Posts: 1,699
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Was dexcool both removed and put back into it?
5 bucks says Sludge!
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10-15-2008, 06:03 PM
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#6
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Now a Ford Traitor.
Join Date: Mar 2008
Location: Greenland
Posts: 6,996
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Quote:
Originally Posted by meadus101
Was dexcool both removed and put back into it?
5 bucks says Sludge!
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OMG you have to be right! those roosterheads, that did the job put reg shit in it....lol dude, you are up shit creek......lol get the cleanout kit an blow that shizz outta the water, ir at least make them clean it up!
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10-15-2008, 06:59 PM
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#7
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GLS member
Join Date: Aug 2006
Location: Grand Forks, ND for school; Langdon, ND home
Posts: 2,632
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drain it and flush it good to clean out the sludge, then fill from empty with prestone. dex-cool sucks
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2001½ F150 XLT Crew Cab- true dual glasspacks with x-pipe, AEM intake, SCT X3 with VMP custom tunes, full stereo system, HID 55w heads and 35w fogs, 35% tint front and 20% rear, Lightning tail lights
04 F6 Sno Pro Team edition- MBRP race can, ODS clutch kit
01 YZ125- bored out to 144, PnP cylinder and head, Pro Circuit WORKS suspension, many other mods
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10-15-2008, 07:16 PM
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#8
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GX Member
Join Date: Jul 2007
Location: PA
Posts: 53
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The dealership where I bought it changed the head gaskets like a week after I bought it and that was a year ago in August. I just had it flushed 3 weeks ago. I don't know what kind of antifreeze he put back in tho. It's weird tho, when the heat is on there is not problems at all, but if I turn the heat off it over heats and drains coolant. The guy who flushed said it sounds like a partially plugged radiator, but would the heat being on / off have anything to do with that?
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10-15-2008, 07:30 PM
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#9
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GLS member
Join Date: Jun 2008
Location: FL
Posts: 3,723
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Having the heat on relieves stress from the cooling system, as the heater core absorbs heat from the system. If a vehicle is overheating, turning the heat on is the first thing you do.
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10-15-2008, 08:40 PM
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#10
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Now a Ford Traitor.
Join Date: Mar 2008
Location: Greenland
Posts: 6,996
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ouch, drive there with the heat on, and flush with water, then run coolant through it to diffuse the water
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10-15-2008, 09:20 PM
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#11
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GX Member
Join Date: Jul 2007
Location: PA
Posts: 53
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I had to drive with the heat on all summer, pretty sweet
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10-15-2008, 09:32 PM
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#12
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Now a Ford Traitor.
Join Date: Mar 2008
Location: Greenland
Posts: 6,996
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Quote:
Originally Posted by strizay
I had to drive with the heat on all summer, pretty sweet
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o_0 you did this all summer and then come to us????? wtf is wrong with you!!!
im serious.....wtf...
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10-15-2008, 09:40 PM
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#13
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3500 DONE!
Join Date: Apr 2006
Location: Albany, NY
Posts: 5,915
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What color is the coolant? if its green....GET IT OUT OF THERE. If its orange, the coolant isn't the issue
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2002 3400 & 3500 GL "Ruby"-->R.I.P. 163k. My first car. Put 130k on her.
2000 3500 GLS "Robin"-->Intake,Headers,Exhaust,H&R springs,KYB AGX,Sway bars,Strut bars and more 
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10-15-2008, 09:45 PM
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#14
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Keepin it Real
Join Date: Nov 2003
Location: Alexandria, VA
Posts: 12,522
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Quote:
Originally Posted by billytheman1188
What color is the coolant? if its green....GET IT OUT OF THERE. If its orange, the coolant isn't the issue
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not necessarily. i think the prestone all makes all models is greenish. all you have to do is look in the resevoir and see if its gelling up, if its not, then why would it do it inside the motor?
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2015 Audi SQ5
2000 Alero GLS Coupe - still in the family, but I don't drive it anymore
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10-15-2008, 09:46 PM
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#15
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3500 DONE!
Join Date: Apr 2006
Location: Albany, NY
Posts: 5,915
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^^^^ahhh ok. well i only buy dex-cool
__________________
2002 3400 & 3500 GL "Ruby"-->R.I.P. 163k. My first car. Put 130k on her.
2000 3500 GLS "Robin"-->Intake,Headers,Exhaust,H&R springs,KYB AGX,Sway bars,Strut bars and more
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10-15-2008, 09:55 PM
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#16
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Keepin it Real
Join Date: Nov 2003
Location: Alexandria, VA
Posts: 12,522
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when i had my motor rebuilt 2 years ago i got home and checked the coolant and almost shat myself when i saw it was green. i called the shop and they said it was any make/model and i have only added maybe 30oz of water to it since.
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2015 Audi SQ5
2000 Alero GLS Coupe - still in the family, but I don't drive it anymore
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10-15-2008, 09:57 PM
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#17
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Keepin it Real
Join Date: Nov 2003
Location: Alexandria, VA
Posts: 12,522
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if you cant afford another expensive repair to fix whatever is wrong, you could always just remove the t-stat. its gonna be cold soon anyway.
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2015 Audi SQ5
2000 Alero GLS Coupe - still in the family, but I don't drive it anymore
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10-15-2008, 10:17 PM
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#18
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GL Member
Join Date: Jul 2008
Location: Butler, PA
Posts: 633
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I tried the prestone all makes/all models stuff in my Malibu. It still had some dex-cool in it and it gummed up anyway. You have to make sure your cooling system is 100% clean and drained or it will create a big mess for you. It took forever to clean mine out. I hooked it up to a hose and let it run full blast through the system for about 15 minutes straight, then ran it on just water until it got really hot, and flushed it again. Seemed to work for at least 20K miles, until I junked it.
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*TOTALED* - 2000 Olds Alero Sedan - 3.4L 3400 V6 - WAI - Sony Head Unit -
NEW RIDE - 2005 Buick LaCrosse - 3.8L 3800 Series III V6 - WAI - Muffler/Resonator removed -
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10-15-2008, 10:18 PM
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#19
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Now a Ford Traitor.
Join Date: Mar 2008
Location: Greenland
Posts: 6,996
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lol, i never liked mali's seem junky to me
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10-15-2008, 10:27 PM
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#20
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GLS member
Join Date: Aug 2006
Location: Grand Forks, ND for school; Langdon, ND home
Posts: 2,632
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mine had dex-cool in it before the new engine, i never flushed the system after i put the new engine in. it was already all drained so i filled it with prestone. never gelled.
__________________
2001½ F150 XLT Crew Cab- true dual glasspacks with x-pipe, AEM intake, SCT X3 with VMP custom tunes, full stereo system, HID 55w heads and 35w fogs, 35% tint front and 20% rear, Lightning tail lights
04 F6 Sno Pro Team edition- MBRP race can, ODS clutch kit
01 YZ125- bored out to 144, PnP cylinder and head, Pro Circuit WORKS suspension, many other mods
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