Coolant change - where are the drain plugs? - F150online Forums


Coolant change - where are the drain plugs?

Reply
 
 
  #1  
Old 01-18-2006, 05:28 PM
Member
Thread Starter
 
Join Date: Apr 2005
Posts: 71
Coolant change - where are the drain plugs?

2002 F150 V8 4.6L

I want to change the coolant. I can see the drain spigot on the radiator, but I can't find the two drain plugs that are near the oil pan. Where are they?
And if you want to be just divinely helpful, can you take a quick digital camera picture of under the truck that shows the big picture and just circle where they are?

Chilton's manual has a photo of a bolt that's taken from 2" away; that's not helpful under a truck!
Reply With Quote
  #2  
Old 01-18-2006, 06:52 PM
Senior Member
 
Join Date: Jan 2003
Location: VA
Posts: 1,028
I am not aware of any 'drain plug' in the blocks of our motors. There ARE freeze plugs which are designed to be pushed out of the block in the even that it freezz (the coolant) the block won't be split and thus ruined. To flush the block remove the upper and lower radiator hose, and thermostat, reinstall top hose w/ thermostat housing on the motor and run your garden hose through it for a while. Don't forget to put your thermostat back in and close the pet**** (drain thingy) on your radiator before refilling with coolant mixture. HTH
Reply With Quote
  #3  
Old 01-18-2006, 06:59 PM
Member
Thread Starter
 
Join Date: Apr 2005
Posts: 71
Quote:
Originally Posted by PONY_DRIVER
To flush the block remove the upper and lower radiator hose, and thermostat, reinstall top hose w/ thermostat housing on the motor and run your garden hose through it for a while. Don't forget to put your thermostat back in and close the pet**** (drain thingy) on your radiator before refilling with coolant mixture. HTH
WTF bullsh-t are you telling me to do?
Reply With Quote
  #4  
Old 01-18-2006, 07:03 PM
Senior Member
 
Join Date: Sep 2005
Location: Atlanta, GA
Posts: 2,618
He's telling you how to do a home based coolant flush. If you don't understand it, then take it somewhere and pay $50 to get it done.
Reply With Quote
  #5  
Old 01-18-2006, 07:10 PM
Member
Thread Starter
 
Join Date: Apr 2005
Posts: 71
Disconnect radiator hoses? Both the Chilton's manual and the F150online manual tells to open the spigot in the botton corner of the radiator and then undo the bolts (plugs) by the engine block. They say nothing about removing the radiator hoses - wtf do I need to do that for?
Reply With Quote
  #6  
Old 01-18-2006, 07:22 PM
Member
 
Join Date: Dec 2005
Location: Burlington, IA
Posts: 32
Taking off the radiator hose allows you force clean water through the engine, thus flushing out the old coolant. If you want to do the job right, you need to do more than simply drain out the old and replace it, you need to get any sediment/crap out of the system also.
Reply With Quote
  #7  
Old 01-18-2006, 08:22 PM
Member
Thread Starter
 
Join Date: Apr 2005
Posts: 71
So I can't just pour water into the radiator after I drain everything while keeping the spigot open and the plugs open? That would flush it out. Do I need to remove the hoses to flush? Because won't the water flow out of the spigot where I'm draining the radiator from to begin with?
Reply With Quote
  #8  
Old 01-18-2006, 08:28 PM
Senior Member
 
Join Date: Mar 2001
Location: Avoca,Mi,USA
Posts: 205
Hey corvus with a attitude like that It's hard to believe anybody replied to you!

If you seem to know it all just do whatever the hell you want....!!!
Reply With Quote
  #9  
Old 01-18-2006, 08:48 PM
Senior Member
 
Join Date: Aug 2003
Location: Susquehanna Valley, pa.
Posts: 1,921
the block drain plugs are at the rear of the block. the right side is hard to get to so i didn't remove it when i flushed my truck (by the starter). the left side drain plug is toward the rear below the exhaust manifold, just beside the freeze plug/ block heater. lay under looking up above the front drive shaft and you'll see it. i used an allen wrench socket on a 18" extension. draining and flushing with this plug and the radiator drain will suffice.
Let me see if the camera batteries are charged.
Reply With Quote
  #10  
Old 01-18-2006, 08:59 PM
Senior Member
 
Join Date: Aug 2003
Location: Susquehanna Valley, pa.
Posts: 1,921
here. behind the left front wheel look up at the side of the engine.

below the block heater ( a freeze plug on yours unless you have one) is the block drain.




Reply With Quote
  #11  
Old 01-18-2006, 09:43 PM
Member
Thread Starter
 
Join Date: Apr 2005
Posts: 71
Thank you -very- much for the pictures. They -are- really worth a thousand words.
Reply With Quote
  #12  
Old 01-18-2006, 11:47 PM
Senior Member
 
Join Date: Sep 2005
Location: Atlanta, GA
Posts: 2,618
I wouldn't go that route though. Its more effort to do it that way to achieve the same results the first way mentioned.
Reply With Quote
  #13  
Old 01-23-2006, 09:14 AM
Senior Member
 
Join Date: Feb 1999
Location: Kissimmee, Florida, United States
Posts: 249
I just did this yesterday. I tried to find the right side block plug but it seems to be blocked by a bracket. I was thinking of just pulling the left side plug but that would only drain the left side leaving the right full.
What I did was....I pulled the thermostat, disconnected the upper radiator hose, drained the radiator, then forced water through the system through the coolant tank. Once it was clear I reconnected the upper hose and ran the engine for a few minutes to circulate the water and then flushed it again till the water ran clear then reinstalled the thermostat. I added a container of radiator flush to the water and will flush it again on Saturday.

Don't forget....do not use tap water when mixing it with anti-freeze. Use distilled water only. The minerals in tap water will cause corrosion and blockage.
Reply With Quote
  #14  
Old 02-15-2006, 06:10 PM
Senior Member
 
Join Date: May 2004
Location: Sugar Land, TX
Posts: 252
Has anybody had problems removing the drain plug on the block? I am having one hell of a time getting it off... i'm about to the point of saying screw it and spending the 70 bucks and having it done? any easier ways? pics would be great!
Reply With Quote
  #15  
Old 02-16-2006, 02:47 PM
Senior Member
 
Join Date: Oct 2004
Location: Eau Claire / Milwaukee, WI; USA
Posts: 379
An easy way to drain and flush the engine and radiator you say.

Well here is my oppinion on that issue. Go out to your local Walmart or Auto parts store and pick up a flushing kit. Prestone makes one and most auto parts stores sell it or an identical other brand. (usually for under $10)

Now after the engine is cool of course. Remove the radiator cap and disconnect the lower radiator hose and which ever end is easiest. (I've never found a drain on any radiator yet that was worth a darn, they all seem to drain on to a braket and the coolant goes everywhere anyway.)

Once it's drained, reconnect the hose and then refill and flush the coolant per the instructions that came with the kit I mentioned earlier.

As far as that plug that lees99f150 was so kind to take a picture of, I wouldn't pull it out unless I was installing a block heater. Which by the way should be replaced regularly. Biannually at the very latest.
Reply With Quote
 
 
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Ilovemyford
Transmissions
8
08-19-2015 06:45 PM
Admirablevirus
1997 - 2003 F-150
1
08-06-2015 02:10 AM
kev2126
1997 - 2003 F-150
9
07-25-2015 11:30 AM
F 1Fiddy
2009 - 2014 F-150
7
07-16-2015 04:43 PM
Merlin
Harley-Davidson
1
07-14-2015 12:09 PM


Thread Tools
Search this Thread

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 03:30 PM.