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Re: Do you think most cars need a coolant flush anymore? [Re: JEL01] #5152494 07/05/19 07:23 PM
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dwcopple Offline
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Originally Posted by JEL01
then burp and motor on

How?


2017 RAM Big Horn 4x4 3.6L V6
2011 Chrysler 200 Limited 3.6L V6
Re: Do you think most cars need a coolant flush anymore? [Re: ZZman] #5152503 07/05/19 07:32 PM
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Posts: 9,613
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01rangerxl Offline
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When I got my 94 Ranger a few years ago I flushed it with a garden hose because it was "muddy." Haven't done that since. I usually just drain & fill every couple/few years and call it good. I know my 2002 Ranger has never been flushed in its life and the system is spotless.


2002 Ford Ranger XLT | 3.0 V6 Auto 2WD | 231K miles
1994 Ford Ranger STX | 4.0 V6 Manual 4X4 | 201K miles
1994 Ford Explorer XLT | 4.0 V6 Auto 4X4 | 250K miles
Re: Do you think most cars need a coolant flush anymore? [Re: dwcopple] #5152712 07/06/19 01:22 AM
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JEL01 Offline
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Originally Posted by dwcopple
[quote=JEL01]then burp and motor on

How?[/quote/]

Can depend on the car
On the Honda in the sig, for example, I open the radiator cap and idle it to temp with the heat on max and let it run until the fans turn on twice, that allows the coolant to burp all the air, this is how the service manual wants it done.

Tundra is pretty similar, idle until good and hot with cap off and heat on until no more bubbles appear


Cars I maintain:
02 Mercedes CLK430-Edge 0w40
05 Honda Accord V6-Maxlife 5w30
13 Lexus RX350 AWD-M1 AFE 0w20
02 Toyota Tundra 4x4 M1 5w30
Re: Do you think most cars need a coolant flush anymore? [Re: ZZman] #5152764 07/06/19 05:48 AM
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HangFire Offline
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If you want to drop the lower radiator hose and replace most of the coolant at once, I highly recommend this system, it made my last coolant change refill painless, plus gave me the reassurance that there was no leaks. You need an air compressor though.

UView 550000 Airlift Cooling System Leak Checker and Airlock Purge Tool Kit
[Linked Image]


Various musings: http://hangfire.net
Re: Do you think most cars need a coolant flush anymore? [Re: krismoriah72] #5153223 07/06/19 05:14 PM
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zzyzzx Offline
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Originally Posted by krismoriah72
With timing belt cars.. whomever is doing the work usually does the water pump and a fluid drop is done.


And this is all that you need on these cars. The timing belt will outlast the coolant!

Re: Do you think most cars need a coolant flush anymore? [Re: ZZman] #5162005 07/15/19 09:56 PM
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wtd Offline
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I usually just drain the radiator and then do a refill. On my Mustang I had the dealer do it for the first time since the car was six years old in Feb. and I didn't feel like messing with it and it was already there for an airbag recall.

Last edited by wtd; 07/15/19 09:57 PM.

2014 Mustang GT
1998 Chevy K3500
1998 Chevy K1500
(2) 1992 Cavaliers
1970 Monte Carlo
Re: Do you think most cars need a coolant flush anymore? [Re: ZZman] #5162147 07/16/19 05:08 AM
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dlundblad Offline
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Funny this is brought up.

The tank on the radiator in my truck went out over the weekend. I replaced the whole thing yesterday, but it looks like the system needs flushed again since the old radiator looked pretty cruddy. The PO did a half assed job switching from Dexcool to traditional green so I’m guessing this is the issue.

I thought my citric acid flush as well as a full garden hose flush complete with removing the block plugs last summer was enough, but apparently not. A completely new radiator will be a nice place to start.

Last edited by dlundblad; 07/16/19 05:08 AM.

03 Jeep WJ 4.0 202k Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 186k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 158k M1 EP 10w30 Supertech ST3980 (Ecore)

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