my 87 302 cv wag now is overheating i have a 3core rad,195t,water pump,anti freeze all new. my flex a light fan which cooled it just fine till now. it over heats so i set fan for manual set up so i can have it on all the time now and it still gets up there way past normal allmost past 230* it normally would be at 200-210* what would cause this to happen and what should i fix first. thanks
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stuck open t-stat (doesn't give the coolant enough time to cool off - my dad had this problem with his F150)... crapped water pump impellers... crap caught between the condenser and radiator. I'd clean the radiator fins first off. I've had to do that with a few cars. The dust/dirt buildup on them was something obnoxious... and you couldn't really see it from looking at the condenser either.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)
Originally posted by gadget73
... and it should all work like magic and unicorns and stuff.
Originally posted by dmccaig
Overhead, some poor bastards are flying in airplanes. -
if t-stat is stuck open it wont heat up and t-stat is new and no ac and no condenser in carComment
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How old are the rad hoses?'79 Continental Town Car
'90 Crown Victoria LTD
'94 Crown VictoriaComment
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clogged heater core - have you tried bypassing it or flushing it out?
thermostat stuck closed?
bad hoses (upper, lower, heater, bypass...if they're not new i would suspect them)sigpic
- 1990 Ford LTD Crown Victoria P72 - the street boat - 5.0 liter EFI - Ported HO intake/TB, 90 TC shroud/overflow, Aero airbox/zip tube, Cobra camshaft, 19lb injectors, dual exhaust w/ Magnaflows, Cat/Smog & AC delete, 3G alternator, MOOG chassis parts & KYB cop shocks, 215/70r/15s on 95-97 Merc rims
- 2007 Ford Escape XLT - soccer mom lifted station wagon - 3.0 Duratec, auto, rear converter delete w/ Magnaflow dual exhaust
- 2008 Mercury Grand Marquis Ultimate Edition - Daily driver - 4.6 2 valve Mod motor, 4R75E, 2.73s. Bone stockComment
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new upper lower hoses and heater core is goodComment
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are you losing coolant? it's either burning it, leaking it, or it's blocked up somewhere.sigpic
- 1990 Ford LTD Crown Victoria P72 - the street boat - 5.0 liter EFI - Ported HO intake/TB, 90 TC shroud/overflow, Aero airbox/zip tube, Cobra camshaft, 19lb injectors, dual exhaust w/ Magnaflows, Cat/Smog & AC delete, 3G alternator, MOOG chassis parts & KYB cop shocks, 215/70r/15s on 95-97 Merc rims
- 2007 Ford Escape XLT - soccer mom lifted station wagon - 3.0 Duratec, auto, rear converter delete w/ Magnaflow dual exhaust
- 2008 Mercury Grand Marquis Ultimate Edition - Daily driver - 4.6 2 valve Mod motor, 4R75E, 2.73s. Bone stockComment
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Maybe there is something wrong with the fan? Do you have enough voltage there?
Could be an issue with the motor, if the wiring hasn;t been touched. All the other cooling system items seem to be in order.**2012 Ford Mustang Boss 302: 5.0/ 6 spd/ 3.73s, 20K Cruiser
**2006 MGM,"Ultimate": 4.6/ 2.73/ Dark Tint, Magnaflows, 19s, 115K Daily Driver
**2012 Harley Davidson Wide Glide (FXDWG):103/ Cobra Speedsters/ Cosmetics, 9K Poseur HD Rider
**1976 Ford F-150 4WD: 360, 4 spd, 3.50s, factory A/C, 4" lift, Bilsteins, US Indy Mags, 35s Truck DutiesComment
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its the motor control box on the fan. it wasnt working and it would cycle but cut off real quick and i noticed it was pushing the air into the rad instead of pulling the air. so i have to take control box off completely and wire it so it pulls air thanks for thre helpComment
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DOH!
I managed to pull that stunt when I first wired up the fans on my Mark. having the fans blow in the correct direction helps loads.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)
Originally posted by gadget73
... and it should all work like magic and unicorns and stuff.
Originally posted by dmccaig
Overhead, some poor bastards are flying in airplanes.Comment
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You will get the most efficient cooling from a STOCK clutch fan. There is a possibility your flex fan is flexier (therefore moving less air). Are you checking that fan for cracked blades regularily?my flex a light fan which cooled it just fine
Alex.Comment
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I think he is referring to flex-a-lite brand electric fan, AlexOriginally posted by GM_Guy View Post
....and 230 degrees is NOT overheating, However it is on the high side of normal.Last edited by 88grandmarq; 06-12-2011, 12:35 PM.2003 Town Car Signature - 3.27 RAR, Dual exhaust and J-mod - SOLD 9/2011
89 Crown Victoria LX HPP -- SOLD 9/2010
88 Grand Marquis LS - The Original -- Totaled 5/2006
I rebuild AOD/AODE/4R70W/4R75E transmissions....Check out my Facebook page: https://www.facebook.com/pages/North...48414635312478Comment
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Sounds like the thermostat for the controller might be set wrong, and the wiring needs to be switched on the fan.Builder/Owner of Badass Panther Wagons
Busy maintaining a fleet of FordsComment
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