Weird cooling issue w/ 22re

boostaddctn · 09-25-2006, 01:21 AM

Hi guys, new to the forums here, just recently bought a 91 Toyota Pickup 22RE 2WD A/T to use for our mt. biking trips. My dad borrowed the truck today and he told me that whenever he took the truck up to 70 - 80mph, the temperature needle would start to climb. I am assuming that the radiator is clogged (but can a bad rad cap do this also??). I also noticed that it takes a really long time for the truck to achieve normal temperature (usually about 15minutes??) is this normal also?? what can you guys recommend me to check?? thanks, aight peace

- Bert

ps- I did a search and didn't seem to find anyone with a similar problem as me.

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mt_goat · 09-25-2006, 05:11 AM

Does it over-heat when the heater is on? Check this out: http://www.4crawler.com/4x4/CheapTri...tml#Thermostat

MMA_Alex · 09-25-2006, 07:01 AM

if you just bought it its usually a good idea to swap fluids. I would drain and flush the rad, replace the t-stat, and replace the cap.

Elton · 09-25-2006, 07:39 AM

Welcome to YotaTech ... try replacing the t-stat and see if that helps any

Flash319 · 09-25-2006, 09:27 AM

Sounds like your t-stat is no good as it should only take a few min to warm up. Also your rad is probebly on its way out.

Glenn · 09-25-2006, 10:04 AM

Also check out the fan clutch. I have had the same symptoms you describe, and it turned out to be the fan clutch was not working right.

04 Rocko Taco · 09-25-2006, 10:06 AM

I was going to say sounds like a t-stat, fan clutch could be a good idea too. But yeah when having these issues, alwaysa good idea to go ahead and do a rad flush.

MMA_Alex · 09-25-2006, 10:12 AM

the fan shouldn't make a difference at 80mph as it is only used to pull air across the rad when the engine is idling, or going very slow

boostaddctn · 09-25-2006, 01:01 PM

Quote:

Originally Posted by MMA_Alex

the fan shouldn't make a difference at 80mph as it is only used to pull air across the rad when the engine is idling, or going very slow

Yeah thats why I didn't mention the fan clutch, cause usually after 40mph (I believe) the fan isn't needed anymore... I am going try and find time to do the thermostat and a coolant flush this weekend, any other input would help also, thanks

aight peace

09-25-2006, 05:11 AM	#2 (permalink)
mt_goat Contributing Member Join Date: Nov 2002 Location: Oklahoma State Posts: 8,916	Does it over-heat when the heater is on? Check this out: http://www.4crawler.com/4x4/CheapTri...tml#Thermostat __________________ ~Dale~ 93 4X4 ext-cab, auto, SR5, 3.4 V6, supercharged, 2.1" pulley, URD fuel mods, Aquamist WI, IPT valve body mod, dual cases, 4" superlift front, Alcan springs rear, 33 BFG MT, ARB locked front & rear, 5.29 US Gears, RB 1" Body Lift, 1.5" ball joint spacers, manual hubs, TJM T-17, Warn m8000.

09-25-2006, 07:39 AM	#4 (permalink)
Elton Contributing Member Join Date: Jul 2005 Location: Siletz,Oregon Posts: 10,647	Welcome to YotaTech ... try replacing the t-stat and see if that helps any __________________ My Truck 98 4runner SR5 3.4L 5spd 4x4 E-Locker Mods Mom 07 Tundra d-cab limited 5.7L 4x4 auto sister 92 pickup SR5 X-cab 3.0L 5spd 4x4 Papa 89 Pickup SR5 X-cab 4x4 3.0L 5spd/98 4runner SR5 4x4 auto 3.4L R.I.P 91 4runner SR5 4x4 3.0L 5spd Totaled 5/13/06 My Wreck

09-25-2006, 10:04 AM	#6 (permalink)
Glenn Registered User Join Date: Mar 2003 Location: ELN Posts: 1,651	Also check out the fan clutch. I have had the same symptoms you describe, and it turned out to be the fan clutch was not working right. __________________ -Glenn-

09-25-2006, 10:06 AM	#7 (permalink)
04 Rocko Taco Contributing Member Join Date: Jun 2006 Location: Atlanta, Ga Posts: 4,070	I was going to say sounds like a t-stat, fan clutch could be a good idea too. But yeah when having these issues, alwaysa good idea to go ahead and do a rad flush. __________________ -Chris Tread Lightly! 04 Double Cab PreRunner. 3.4 - Auto 84 4Runner 4WD. 22R - 5 spd Lifted, Locked, 33x12.50 Disclaimer:My Photobucket is being revamped. If there are broken links, shoot me a PM. Thanks. ~Chris Great Toyota Tech

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09-25-2006, 07:01 AM	#3 (permalink)
MMA_Alex Registered User Join Date: Apr 2006 Location: Downeast, ME/Rochester, NY Posts: 1,421	if you just bought it its usually a good idea to swap fluids. I would drain and flush the rad, replace the t-stat, and replace the cap.

09-25-2006, 09:27 AM	#5 (permalink)
Flash319 Registered User Join Date: Feb 2006 Location: Barrie, Ontario CANADA Posts: 1,356	Sounds like your t-stat is no good as it should only take a few min to warm up. Also your rad is probebly on its way out.

09-25-2006, 10:12 AM	#8 (permalink)
MMA_Alex Registered User Join Date: Apr 2006 Location: Downeast, ME/Rochester, NY Posts: 1,421	the fan shouldn't make a difference at 80mph as it is only used to pull air across the rad when the engine is idling, or going very slow

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