Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > > >
Forgot Password? Join Us!

Welcome to Ford Ranger Forum

Reply
 
Thread Tools Search this Thread

  #1  
Old 02-12-2011, 10:58 AM
bassplyer92517 bassplyer92517 is offline
Ford Tough
 
Join Date: Feb 2010
Posts: 309
Default Cooling System Question

Ok, so recently I had an engine swap because I hydrolocked my engine. THey pulled a 3.0 from a Taurus, i don't know the exact year, but I think they said something like 2002-2004. Everything has been going great with the new engine except for one minor thing.
I feel like the truck takes forever to heat up, and when I turn on the heater once the truck is up to operating temperature, the temperature of the engine will go down significantly.

It will take about 15 minutes of freeway driving to reach about 185 degrees, which is where it normally stays. This is about 5 degrees less than my old engine. When I turn on the heat it can drop from 185 to 160, putting the temp. gauge needle at the line before C. I mean the truck runs fine, but I just notice it, especially since having the temp. gauge needle always being at the middle no matter what I did on my old engine.

I was thinking it could be a thermostat problem, but I don't know much about this. With an engine swap would I still have my old thermostat or would they have given me one with the engine. Idk where the thermostat is located so if it is part of the radiator then it is most likely my old one. In that case, why is it doing this? I'd rather take care of it now while my engine is under the year warranty from the shop.
Reply With Quote
  #2  
Old 02-12-2011, 11:05 AM
Clinton Clinton is offline
Banned
 
Join Date: Mar 2010
Posts: 14,049
Default Re: Cooling System Question

Take it back to that shop being that it has a warranty.
Reply With Quote
  #3  
Old 02-12-2011, 11:08 AM
bassplyer92517 bassplyer92517 is offline
Ford Tough
 
Join Date: Feb 2010
Posts: 309
Default Re: Cooling System Question

Quote:
Originally Posted by Clinton View Post
Take it back to that shop being that it has a warranty.
I called them and all they said to me was "That is the normal operation of any vehicle"
Reply With Quote
  #4  
Old 02-12-2011, 11:11 AM
terryduanemiller terryduanemiller is offline
www.shanewootenband.com
 
Join Date: Oct 2010
Posts: 1,896
Default Re: Cooling System Question

Block has many places small amount of rust can linger, battled this issue, more than once.. mine wld work fine for a while after flushing the heater core, then start doing it again.. so I was fed up.. I removed the thermostat housing, water pump, radiator (which is new) and flushed the block, heater core, and rad.. and now it works like a dream..
it only takes a small amount to clog the heater core, pull both lines, flush it (heater core) with water hose in both directions, cpl minutes on each side.. you should be good to go..
__________________
MY BUILD THREAD
1999 MAZDA 2500SE, 2.5L 4-clanger, 5 speed, Green n slow. Rangers as daily drivers since 1988.
ASE Certified Mechanic, Builder of Show Destroying Protouring and Classic cars..
Reply With Quote
  #5  
Old 02-12-2011, 11:39 AM
bassplyer92517 bassplyer92517 is offline
Ford Tough
 
Join Date: Feb 2010
Posts: 309
Default Re: Cooling System Question

Quote:
Originally Posted by terryduanemiller View Post
Block has many places small amount of rust can linger, battled this issue, more than once.. mine wld work fine for a while after flushing the heater core, then start doing it again.. so I was fed up.. I removed the thermostat housing, water pump, radiator (which is new) and flushed the block, heater core, and rad.. and now it works like a dream..
it only takes a small amount to clog the heater core, pull both lines, flush it (heater core) with water hose in both directions, cpl minutes on each side.. you should be good to go..
But why would it do this if it is the same heater core, same radiator and everything. Plus they told me they did a flush of everything when they put it in because it came with what I paid for.

I guess the main thing I want to know is if I still have the same thermostat I did before or if they would have replaced that when they did the engine swap.
Reply With Quote
  #6  
Old 02-12-2011, 12:54 PM
FX4OR FX4OR is offline
Ford Tough
 
Join Date: Dec 2010
Posts: 417
Default Re: Cooling System Question

mine does the exact same thing. I've just decided to live with it until I have time to do a flush like tdm said
__________________
2002 Ranger FX4
4.0L SOHC, 5R55E Auto, 4.10 8.8 Torsen, 31x10.5/15 BFG ATs
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cooling system question Malcom General Ford Ranger Discussion 0 01-08-2011 09:35 PM
4.0 heating/cooling question bluscsw 4.0 SOHC / 4.0 OHV Tech 2 05-18-2010 06:12 AM
Cooling System??? dagored111 3.0 Vulcan Tech 0 05-09-2010 02:14 PM
cooling DEBO 3.0 Vulcan Tech 0 04-01-2010 07:48 PM
whole sound system question More_Cowbell Audio / Video 6 12-22-2009 12:15 AM