Radiator Flush Procedures Needed Immediately
10-09-2005, 04:07 PM
#1
Senior Member
Thread Starter
Join Date: Dec 2004
Posts: 596
Radiator Flush Procedures Needed Immediately
Hi was was changing the coolent on my radiatory and was wondering which hose do i take off inorder to drain all the coolant? I want to do a complete flush because it has 70k miles on it.
Thanks
Thanks
10-09-2005, 04:27 PM
#2
Originally Posted by siren001
Hi was was changing the coolent on my radiatory and was wondering which hose do i take off inorder to drain all the coolant? I want to do a complete flush because it has 70k miles on it.
Thanks
Thanks
fill radiator with water
start engine and run to operating temp (to open thermostat)
leave engine running
remove drain plug
let car run till nothing else comes out
turn off car right away
10-09-2005, 05:30 PM
#6
Originally Posted by JUICED
Another alternative to removing all the old coolant out is to remove the drain plug from the block!
10-09-2005, 05:54 PM
#7
Member
Join Date: Jun 2005
Posts: 66
If you want to get technicial we can 
: The following instructions are provided in the Maintance section of the NISSAN Service Manual on pages MA-14 & MA-15. In particular "YOU" can read #4.
1. Set air conditioning system as follows to prevent coolant from remaing in the system.
a. Turn ignition switch ON and set temperature controlloer to maximum hot position.
b. Wait 10 seconds before turning ignition switch OFF.
2. Open radiator drain plug at the bottom of radiator, and remove radiator filler cap.
3. Remove reservoir tank, drain coolant, then clean reservoir tank.
4. Remove drain plugs on both sides of cylinder block and air relief plug.
5. Check drained coolant for contaminants such as rust, corrsion or discoloration. If contaminated flush engine cooling system, refer to "FLUSHING COOLING SYSTEM", MA-16
: The following instructions are provided in the Maintance section of the NISSAN Service Manual on pages MA-14 & MA-15. In particular "YOU" can read #4.1. Set air conditioning system as follows to prevent coolant from remaing in the system.
a. Turn ignition switch ON and set temperature controlloer to maximum hot position.
b. Wait 10 seconds before turning ignition switch OFF.
2. Open radiator drain plug at the bottom of radiator, and remove radiator filler cap.
3. Remove reservoir tank, drain coolant, then clean reservoir tank.
4. Remove drain plugs on both sides of cylinder block and air relief plug.
5. Check drained coolant for contaminants such as rust, corrsion or discoloration. If contaminated flush engine cooling system, refer to "FLUSHING COOLING SYSTEM", MA-16
10-09-2005, 06:04 PM
#8
Originally Posted by JUICED
If you want to get technicial we can : The following instructions are provided in the Maintance section of the NISSAN Service Manual on pages MA-14 & MA-15. In particular "YOU" can read #4.
1. Set air conditioning system as follows to prevent coolant from remaing in the system.
a. Turn ignition switch ON and set temperature controlloer to maximum hot position.
b. Wait 10 seconds before turning ignition switch OFF.
2. Open radiator drain plug at the bottom of radiator, and remove radiator filler cap.
3. Remove reservoir tank, drain coolant, then clean reservoir tank.
4. Remove drain plugs on both sides of cylinder block and air relief plug.
5. Check drained coolant for contaminants such as rust, corrsion or discoloration. If contaminated flush engine cooling system, refer to "FLUSHING COOLING SYSTEM", MA-16
: The following instructions are provided in the Maintance section of the NISSAN Service Manual on pages MA-14 & MA-15. In particular "YOU" can read #4.1. Set air conditioning system as follows to prevent coolant from remaing in the system.
a. Turn ignition switch ON and set temperature controlloer to maximum hot position.
b. Wait 10 seconds before turning ignition switch OFF.
2. Open radiator drain plug at the bottom of radiator, and remove radiator filler cap.
3. Remove reservoir tank, drain coolant, then clean reservoir tank.
4. Remove drain plugs on both sides of cylinder block and air relief plug.
5. Check drained coolant for contaminants such as rust, corrsion or discoloration. If contaminated flush engine cooling system, refer to "FLUSHING COOLING SYSTEM", MA-16
i have a service manual too but never thought it was necessary to use it when flushing my coolant. i was smart enough to figure it out myself
you do it that way...i'll do it my way that is easier (which is why most people use this method)
10-09-2005, 08:38 PM
#9
Member
Join Date: Jun 2005
Posts: 66
oh, i know your method is the most commonly used method of which i also use and others in my nissan dealership use, but you mentioned that draining the block wouldn't completely drain your coolant which is "wrong." i may be a new member to this forum, but than again i think i have more experience working on all nissan's than you. have a nice day!
10-09-2005, 09:24 PM
#10
Originally Posted by soonerfan
look at the newbie who is smart just because he can read a service manual. now can you actually go out to your car and find them?
i have a service manual too but never thought it was necessary to use it when flushing my coolant. i was smart enough to figure it out myself
you do it that way...i'll do it my way that is easier (which is why most people use this method)
i have a service manual too but never thought it was necessary to use it when flushing my coolant. i was smart enough to figure it out myself
you do it that way...i'll do it my way that is easier (which is why most people use this method)
I do it your way too
10-10-2005, 07:55 AM
#11
Originally Posted by JUICED
oh, i know your method is the most commonly used method of which i also use and others in my nissan dealership use, but you mentioned that draining the block wouldn't completely drain your coolant which is "wrong." i may be a new member to this forum, but than again i think i have more experience working on all nissan's than you. have a nice day!
10-10-2005, 08:03 AM
#12
Originally Posted by soonerfan
you dont remove a hose. you remove the plastic drain plug from the bottom of the radiator. if you also want to remove all the coolant still in the engine block- replace drain plug
fill radiator with water
start engine and run to operating temp (to open thermostat)
leave engine running
remove drain plug
let car run till nothing else comes out
turn off car right away
fill radiator with water
start engine and run to operating temp (to open thermostat)
leave engine running
remove drain plug
let car run till nothing else comes out
turn off car right away
Wont this cause air pockets when you fill up the system again?
10-10-2005, 10:35 AM
#13
Originally Posted by Kevlo911
Wont this cause air pockets when you fill up the system again?
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