12-23-2011, 05:07 PM
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#1
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Member
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Join Date: Dec 2011
Location: Summerfield NC
Posts: 30
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Member
Join Date: Dec 2011
Location: Summerfield NC
Posts: 30
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Overheating! Help please...
I have a 1995 Toyota 4runner 3.0. the water pump, t-stat, timing belt, plugs, wires were replaced last week. The radiator is fairly new too. The problem is, it can idle for an hour and stay at normal operating temp. I drive it for ten minutes and it starts to overheat. I've noticed that I can put it in neutral and rev to 4000 rpms while on the road and the temp gauge goes right back to normal. The head gasket was replaced about 2 years ago. I'm not getting any white smoke or loosing any coolant.
The check engine light is on due to a faulty "knock sensor" which does make it run rough, but I don't think that has anything to do with the overheating.
Thanks
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12-23-2011, 05:16 PM
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#2
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Senior Member
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Join Date: Nov 2011
Location: Morgantown, WV
Posts: 1,331
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Senior Member
Join Date: Nov 2011
Location: Morgantown, WV
Posts: 1,331
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Is all the air out of your coolant? Had that happen once.
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12-23-2011, 05:29 PM
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#3
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Join Date: Jun 2011
Location: Lake Charles, La
Posts: 489
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Member
Join Date: Jun 2011
Location: Lake Charles, La
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yeah try burping the system. did you replace the thermostat when you replaced the radiator? what brand did you use if so? did you get the jiggle valve lined up in the right orientation?
also, this is kind of the wrong place to post this. This is the 3rd gen section, but this problem can likely still be addressed here.
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'96 SR5 2wd 275k miles
TBU 231's-Brembo Rotors, '99 Tall coils, Billsteind HD 4600 series, FJ Cruiser 17", 265/70/R17 Terra Grapplers [ all original other then tune-ups, oil changes, front o2, u-joints, and axle seals ]
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12-23-2011, 05:50 PM
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#4
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Join Date: Mar 2010
Location: Portland, OR
Posts: 197
Real Name: Tyler
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Member
Join Date: Mar 2010
Location: Portland, OR
Posts: 197
Real Name: Tyler
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You're in the 3rd gen section. Try posting in the 2nd gen section of the forum.
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1998 SR5 3.4, 5 Speed, 209XXX Miles, Airaid MIT, Magnaflow 18" Muffler, '99 Tall Coils (front), OME 906 Coils (rear), Pro Comp ES9000 Shocks/Struts, 16X8.5 Level 8 Strike 6 Wheels, C Load 265/75R16 Goodyear Wrangler Duratrac's, 231mm Tundra Brake Upgrade, 4X Innovations Rock Sliders
Build Thread: http://www.toyota-4runner.org/3rd-ge...ld-thread.html
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12-24-2011, 09:10 AM
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#5
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Join Date: Dec 2011
Location: Summerfield NC
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Member
Join Date: Dec 2011
Location: Summerfield NC
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It only takes a few seconds to bring the temp down. I drove it yesterday to check again and itseems that once it gets hot from driving, it keeps creeping back even at idle too now.
I've noticed that the upper rad hose expands and contracts when reving the engine also. It almost seems like some sort of blockage, but it sems like it would run hot at idle all the time if this was the case.
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12-24-2011, 02:29 PM
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#6
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Elite Member
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Join Date: Nov 2010
Location: Earth
Posts: 6,453
Real Name: Isaac
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Elite Member
Join Date: Nov 2010
Location: Earth
Posts: 6,453
Real Name: Isaac
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again while we can sort of help you as overheating is not just limited to one type of vehicle or truck, and there can be only so many things that can cause it, the classic forum section is where the 2nd gen (90-95) 4runners are addressed. you will probably find better and faster help there with your specific needs or issue. the 3.slow and the 3.4 motors are totally different(other than both being toyota V6s). you might want to get both of your rad hoses changed, the one should not swell like that. you could possibly have a blockage in the radiator too, how long has it been sense you replaced it? how about the t-stat? it could be stuck... good luck and merry christmas
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if a*sholes could fly this place would be an airport -2004 GX470 spm -97 SR5 3.4, SCS Stealth 6's w/305 70 17s MTRs, Icon 2.5" RR w/700#coils, OME861s w/Icon tacoma 2.0 RR, ARBs w/nitro 4.88, PIAA LED lights, 170amp CS144, ARB snorkel, ARB bumper w/xd9000ce, CBI swingout loaded, BudBuilt skids, lil skip tank skid, sliders, LCE 231s(d&s), first gen roll bar mod, LED interior/dash lighting, B&M 70624+perma cool w/electric fan, dual electric fanshttp://www.toyota-4runner.org/3rd-ge...ld-thread.html
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