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#1
10-18-2006, 10:19 AM
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overheat - sort of
the engine temp on my 93 rodeo 3.2L will go from normal range to just under the red marks, stay there maybe 20-30 seconds, and drop back to normal range. I assumed it was the thermostat and replaced it. no change. It's not loosing coolant. when it goes hot it will not blow hot air through the cabin heating system. Any suggestions?
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#2
10-18-2006, 11:11 AM
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Re: overheat - sort of
Have you done a radiator flush recently?
Do you have the original radiator? If so, it's probably in need of replacement due to internal corrosion.
__________________
1997 3.2L V6 Rodeo  32" Yoko's, 16x8 MB Wheels, 2" lift, Brushguard, KC Fog's, Loadwarrior Rack On it's way to 185k strong  2004 3.4L Tacoma TRD off-road 4x4 Double cab  32" Yoko's, Westin Bull-bar, KC Fogs 60K miles 
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#3
10-18-2006, 12:48 PM
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Re: overheat - sort of
You May Have Air In The System
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#4
10-18-2006, 02:20 PM
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Re: overheat - sort of
It's a replacement radiator, though not new. It appeared clean and in good shape. No corrosion or gunk in the bottom.
How do you de-air a coolant system?
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#5
10-18-2006, 02:38 PM
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Re: overheat - sort of
DO THIS WHEN ENGIN IS COOL
remove the upper hose from the pipes at the rear of the engine on the pass side remove radiator cap pour in coolant /water as needed untill it starts to pour out of the hose and pipe reinstall hose to pipe top off radiator start it up let it reach operating temp be sure radiator gets hot add coolant if needed should be good to go after that
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#6
10-18-2006, 11:08 PM
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Re: overheat - sort of
Did you recently replace the rad?
How old is your water pump?
__________________
1997 Isuzu Rodeo LS 3.2L V6 SOHC 4L-30E Dueler Alenzas 4x2 1997 TJ Sport 4.0L D35 rear 5 spd 31" Dayton Timberline ATs 1996 VW Jetta GLS 2.0L 5 spd
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#7
10-18-2006, 11:51 PM
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Re: overheat - sort of
the proper way to de-air your coolant system is to crank the engine ( COLD ) and remove the radiator cap . the top radiator hoes just needs a little squezing. you want to see bubbles most people call it burping.but just to be safe have you checked all of your wires make sure their all good HOW long has this been going on
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#9
10-19-2006, 12:30 PM
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Re: overheat - sort of
sorry but your wrong on this one rizay it may work on an old 350 or some of the 4 cyl engines
doing what you are describing will not rid this system completly of air I am an isuzu tech and an confident in my description of getting the air out
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#10
10-19-2006, 12:57 PM
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Re: overheat - sort of
Well now you all got me confused, I've always aired it out as Rizay has described and have never had an issue. Did it this way on both Rodeo's without a problem.
__________________
1997 3.2L V6 Rodeo 32" Yoko's, 16x8 MB Wheels, 2" lift, Brushguard, KC Fog's, Loadwarrior Rack On it's way to 185k strong 2004 3.4L Tacoma TRD off-road 4x4 Double cab 32" Yoko's, Westin Bull-bar, KC Fogs 60K miles
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#11
10-19-2006, 03:21 PM
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Re: overheat - sort of
may work but try the way i described its much less time consuming and all air will be gone no margin for error
why take a chance of overheating your vehicle and possibly cracking a head
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#12
10-19-2006, 10:49 PM
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Re: overheat - sort of
Hey, 2eyefish, is headgasket cracking common on these 3.2L's, specifically the 94-97yrs??
__________________
1997 3.2L V6 Rodeo 32" Yoko's, 16x8 MB Wheels, 2" lift, Brushguard, KC Fog's, Loadwarrior Rack On it's way to 185k strong 2004 3.4L Tacoma TRD off-road 4x4 Double cab 32" Yoko's, Westin Bull-bar, KC Fogs 60K miles
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#13
10-20-2006, 12:54 AM
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Re: overheat - sort of
Quote:
thanks //bc
__________________
1992 trooper 3.2L v6 sohc automatic...as is i love a good intermittent electrical challenge. . .especially when it's someone else's.
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#14
10-20-2006, 01:13 PM
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Re: overheat - sort of
It Is Not Common To Have Any Head Gasket Problems On These More Of A Head Problem When They Overheat
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#15
10-20-2006, 01:14 PM
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Re: overheat - sort of
Yes Troop Heater Hoses
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