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#1
06-24-2004, 10:45 PM
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radiator over heating
hi i just got a 97 z28 camaro and when stop at a light i've noticed the temp gauge starts to creep up to the hot side.I checked the radiator fans and they are not working any ideas on where to start checking why they don't come on.
thx for your help 
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#2
06-24-2004, 10:48 PM
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Re: radiator over heating
first, how hot does it get? the fans dont come on till around 255* which is an eigth of a fraction over half way on the guage (about). second, id start with your fuses and relays. also, try turning on the a/c and see if the fans come on.
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#4
06-24-2004, 11:07 PM
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Re: radiator over heating
yeah thats the next step...
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#6
06-24-2004, 11:09 PM
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Re: radiator over heating
hell yeah!!
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#7
06-24-2004, 11:12 PM
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Re: radiator over heating
and if that dont work, check the fan plugs for
loose connections....that has happened to me before.
__________________
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#8
06-25-2004, 07:00 PM
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Re: Re: radiator over heating
Quote:
thx
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#9
06-25-2004, 08:30 PM
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Re: radiator over heating
the best way that i can think of is to take one that you know works that has the same voltages and everything (like your headlight relay, or a/c relay) unplug the cooling relay and plug in the test relay. if it works than there ya go, if not than its prolly something else...
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#10
06-25-2004, 11:20 PM
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Re: radiator over heating
Any chance the previous owner installed a lower thermostat, say a 160 degree?
__________________
97 Camaro - 2.077 60', 14.745 @ 92.20 - still down, one year later. 194k miles-160* thermo-V8 shocks/springs (V6 rear springs)-3" Magnaflow !cat (3" dynomax bullet) back-SLP CAI-stock boxed LCAs-poly tranny mount and torque arm bushing-custom HPTuners tuning-4.10s/eaton/TA girdle-3.5" alum DS-spohn LCA brackets-prostar skinnies 179.75 RWHP, 204.52 RWTQ ON ITS WAY: MORE R.I.P. Andy 87 Benz 190e - DD 01 EX250 - still gotta get my license for this thing
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#11
06-25-2004, 11:30 PM
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i put a 160 in the 91 rs that i had, i run it 2 years with it in it
all it done was overheat. i didnt know at the time that my fan was coming on around 190. it even warped the heads, it never run under 220, and advanced auto parts recomended it. yeah better check it out.
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#12
06-26-2004, 12:09 AM
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Re: radiator over heating
i didnt use a thermostat....
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#13
06-26-2004, 12:51 PM
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Re: radiator over heating
i got a 160 in my car and the thing runs beautifully. you just have to remember that the fans dont turn on till like 250 or something, so its gonna get hot before the ecu knows whats up. i put a manual fan switch in my car so now she runs cooler than ever...
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#14
07-04-2004, 03:23 PM
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First things First
Always check the fan motor first!!! directly connect the fan motor to the battery.... if this does'nt work then the motor is dead and you need to replace it. If it does work then the problem lies in a relay or coolant temp sensor. which should be somewhere around the thermostat.
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#15
07-05-2004, 12:27 AM
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Re: radiator over heating
So it doesn't come on w/ the AC ??
Get a mitchel manual or mitchel on-line or all data- It will give you a flow chart to fix it- if you can follow it. Don't start throwing parts at it you will go broke or nuts (OR vice versa)
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