Recent Topics
comparing wix 1334 vs 51182
by Provi
04/17/14 08:27 PM
Synthetic Oil in a GM 3800 ?
by Merkava_4
04/17/14 07:54 PM
My Blackberry Z30 review.
by KrisZ
04/17/14 07:45 PM
Strange Computer Problem
by ZeeOSix
04/17/14 07:27 PM
PYB5w20, 11'Sonata, 3k miles UOA
by Sonataman
04/17/14 07:08 PM
Pennzoil Platinum 8150 miles Cruze 1.4
by mwball0
04/17/14 06:55 PM
overthinking?
by BlueOval
04/17/14 06:00 PM
2015 KIA Sedona
by Azeem
04/17/14 05:10 PM
Rotella 15w40 in an oil burner/leaker
by Stang40
04/17/14 04:59 PM
First oil change / Pacific Hydrostar 6.5HP
by bubbatime
04/17/14 04:10 PM
Toyota WS Transmission Fluid
by 06AllAmerican
04/17/14 04:06 PM
Group III vs Group IV at 400C
by G-MAN
04/17/14 03:41 PM
Newest Members
Northwestil01, Coor, jeff2point5, Pi1, navynuke
49602 Registered Users
Who's Online
122 registered (1345, 123Saab, 2009Edge, 01_celica_gt, AandPDan, 9 invisible), 1916 Guests and 225 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
49602 Members
64 Forums
212014 Topics
3323121 Posts

Max Online: 2551 @ 04/05/14 01:28 PM
Donate to BITOG

Topic Options
#2012041 - 09/09/10 11:49 AM Flush & Refill - 2002 GMC Envoy
Chriznat20@msn.com Offline


Registered: 11/23/04
Posts: 829
Loc: Michigan
My 2002 Envoy (4.2L I-6) has 140,000 miles on it. Ive owned it since 60,000 miles, circa 2004.

The water pump is *just about* to give up the ghost, with a whole bunch of play in the water pump shaft, but not leaking yet. I plan on replacing it in the next week or so.

I replaced the t-stat around 100k, and partially drained the cooling system and refilled with 50/50 Dex-cool Prestone.

I would really like to drain out ALL the coolant this time, fill it up with a flushing product, drain that, THEN replace the water pump and refill with NEW dex-cool.

What is a good recommended "flush" product, and what coolant is recommended here on the forum?


Edited by Chriznat20@msn.com (09/09/10 11:55 AM)
_________________________
07 Prius
81k miles M1 AFE
10 Escape/3.0l
50k miles Synpower 5w30
97 FW Vista 278
Twin 4.3Gi 185hrs&
4kw genset 17hrs- T5

Top
#2012990 - 09/10/10 08:06 AM Re: Flush & Refill - 2002 GMC Envoy [Re: Chriznat20@msn.com]
oldmaninsc Offline


Registered: 09/25/06
Posts: 1197
Loc: California
Originally Posted By: Chriznat20@msn.com
My 2002 Envoy (4.2L I-6) has 140,000 miles on it. Ive owned it since 60,000 miles, circa 2004.

The water pump is *just about* to give up the ghost, with a whole bunch of play in the water pump shaft, but not leaking yet. I plan on replacing it in the next week or so.

I replaced the t-stat around 100k, and partially drained the cooling system and refilled with 50/50 Dex-cool Prestone.

I would really like to drain out ALL the coolant this time, fill it up with a flushing product, drain that, THEN replace the water pump and refill with NEW dex-cool.

What is a good recommended "flush" product, and what coolant is recommended here on the forum?


I rarely ever use a "flush" product. I really don't think it's necessary. Flushing with water usually works well.
I replaced the thermostat in my 05 Trailblazer EXT around the 4.5 year mark with about 50,000 miles on it. The inside of the engine was very clean. I refilled with Prestone Dex Cool.
_________________________
2004 Mercury Grand Marquis LS
2005 Chevy Trailblazer EXT (SOLD)
2005 Toyota Camry LE
1995 Ford Aerostar EXT

Top