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| The Pub For General Automotive Related Talk |
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09-05-2006, 12:08 PM
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Fly Boy
Join Date: Dec 2005
Posts: 86
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1987 LTD - 6 cylinder EFI. problem - engine does not get hot. radiator seems 'cold'. this is an issue as heater pumps out no heat. have replaced hoses and thermostat. what can cause an engine to run cool like this?
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09-05-2006, 12:24 PM
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#2 | ||
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Purveyor of filth
Join Date: Oct 2005
Location: Melbourne
Posts: 2,958
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You changed the thermostat and still cold? What thermostat did you put in? It has to start opening at 80C and be fully open by about 85C.
How long has the engine been running before you turn the heater on? Grab both radiator hoses after a longish drive. They should be quite warm to the touch, even hot. If they are still cold, your thermostat is either opening at too low a temperature or stuck open (happens with new ones once ina while). |
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09-05-2006, 12:24 PM
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#3 | |||
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Regular Member
Join Date: Jun 2005
Location: Adelaide
Posts: 394
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Quote:
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09-05-2006, 12:33 PM
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#4 | ||
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Fly Boy
Join Date: Dec 2005
Posts: 86
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thanks for the replies. its not my car its a friends. i think you have put us on the right track. the engine block does not get very hot. its like its a cold engine. quite weird.
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09-05-2006, 12:34 PM
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#5 | ||
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Purveyor of filth
Join Date: Oct 2005
Location: Melbourne
Posts: 2,958
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No worries glad we can help.
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09-05-2006, 12:41 PM
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#6 | ||
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Guest
Posts: n/a
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Make sure the cooling system is well purged.
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09-05-2006, 12:44 PM
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#7 | ||
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......
Join Date: Aug 2005
Location: Northside Brisbane
Posts: 2,494
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my engine doesn't usually get past the N of Normal
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09-05-2006, 02:37 PM
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#8 | ||
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FF.Com.Au Hardcore
Join Date: Jan 2005
Location: Tauranga, New Zealand
Posts: 1,488
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My money is on a stuck thermostat. Thermostats are temperamental little bastards and it's not unheard of for a brand new one to stick.
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09-05-2006, 02:50 PM
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#9 | ||
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XW 351
Join Date: Jul 2005
Location: Camden
Posts: 328
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A good thing to do is to get the thermostat out and boil it in water on the stove to ensure that it opens.
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09-05-2006, 03:04 PM
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#10 | ||
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......
Join Date: Aug 2005
Location: Northside Brisbane
Posts: 2,494
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i checked mine and it wasn't stuck open...maybe its just a dodge one
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09-05-2006, 03:50 PM
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#11 | |||
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owning V8=having no $$$
Join Date: Mar 2005
Location: Brisbane...
Posts: 1,717
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Quote:
__________________
Weekends - 1965 XP 302 sedan...  : Weekdays - 1980 323 Mazdabator complete with cheese cutters & FF sticker :dr_Evil: The Reality: 13.1 @ 106mph.... The Goal: somehow get into the 12s!!! :sm_headba www.qldsuperkart.org |
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09-05-2006, 10:15 PM
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#12 | ||
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Excessive Fuel Ingestion
Join Date: Dec 2004
Location: Central Queensland Coast
Posts: 1,586
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Ignore the following if you've already done this or know about it:
Make sure you bleed the air out of the head/thermostat area with the bleeder screw. They get an airlock that can be terminal. Make sure the heater is turned on when filling/bleeding, etc. Ed 
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engine not running hot
Linear Mode
