Cooling System

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Draining and refilling coolant system

Last post by Wiley « Tue Apr 24, 2012 2:05 pm
Replies: 11
by Gerry Atrix » Wed Oct 19, 2011 11:36 am

Evening All,

Decided as winter may happen sooner rather than later, to drain down, flush and refill coolant system (well it beats work =P~ ) as the...

11 Replies

19697 Views

Last post by Wiley
Tue Apr 24, 2012 2:05 pm
How do i reattach this thing?

Last post by astroturf « Fri Apr 20, 2012 6:49 pm
Replies: 10
by Wiley » Sun Apr 15, 2012 9:57 pm

Not sure what this plastic piece is, but I broke it open with a light tap while trying unsuccessfully to get my fan off the pulley. Its located on...

10 Replies

8410 Views

Last post by astroturf
Fri Apr 20, 2012 6:49 pm
how do I replace a freeze plug

Last post by motobobintexas « Mon Jan 16, 2012 7:54 am
Replies: 7
by motobobintexas » Mon Jan 09, 2012 7:10 pm

Hello all...first post

I have 2 Astros, my '03 AWD has nearly 300K miles and runs great
my '01 RWD has about 225K miles, it has the issue

been...

7 Replies

5726 Views

Last post by motobobintexas
Mon Jan 16, 2012 7:54 am
Ever wonder how radiators are made?

Last post by ihatemybike « Sat Jan 14, 2012 7:24 pm
Replies: 8
by MountainManJoe » Thu Jan 12, 2012 8:19 pm

It's actually quite interesting.

8 Replies

4899 Views

Last post by ihatemybike
Sat Jan 14, 2012 7:24 pm
Over heating problem please help!!

Last post by Derek939 « Sat Dec 31, 2011 6:59 pm
Replies: 21
by Derek939 » Fri Dec 23, 2011 5:45 am
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2
So I have a 91 Astro I drive all the time. I drove all summer with not much issues. I recently replace me intake manifold gasket and thermostat and...
21 Replies

10891 Views

Last post by Derek939
Sat Dec 31, 2011 6:59 pm
"W" 94 4.3-which intake gaskets are the best??.

Last post by doyoulikeithere « Thu Dec 22, 2011 12:28 pm
Replies: 6
by 1Gary » Fri Nov 25, 2011 9:01 pm

Could you guys point to the best intake gasket set I could buy with part numbers please??.

6 Replies

3819 Views

Last post by doyoulikeithere
Thu Dec 22, 2011 12:28 pm
Intake manifold gasket replacement on 1992 "Z" vin

Last post by Krank88 « Fri Dec 16, 2011 12:14 pm
Replies: 38
by JTalley » Thu Oct 13, 2011 7:39 am
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2

3
Unfortunately, it's time to replace it. I finally figured out where that water was coming from, and it turns out that was it. I need to know what the...
38 Replies

16645 Views

Last post by Krank88
Fri Dec 16, 2011 12:14 pm
Thermostat Housing

Last post by 1Gary « Thu Nov 10, 2011 4:17 pm
Replies: 6
by 1Gary » Mon Oct 24, 2011 7:37 am

The thermostat housing has a O ring gasket.What you think about skimming the outside of the O ring on housing with form a gasket??. :-k

6 Replies

3623 Views

Last post by 1Gary
Thu Nov 10, 2011 4:17 pm
Pressure testing for leaks

Last post by 1Gary « Sun Oct 30, 2011 9:27 pm
Replies: 3
by 1Gary » Fri Oct 28, 2011 2:17 pm

I wouldn't think there would be a problem of pressure testing for leaks a van with rear heat,but I thought I should check with you guys first....

3 Replies

2423 Views

Last post by 1Gary
Sun Oct 30, 2011 9:27 pm
Did I say....................

Last post by astrozam « Fri Oct 28, 2011 9:04 am
Replies: 3
by 1Gary » Thu Oct 27, 2011 7:03 pm

Nursing a small leak by adding water is what I was doing.So I got caught at the Durand Eastman beach one time.Sooooo I bailed Ontario lake water into...

3 Replies

2367 Views

Last post by astrozam
Fri Oct 28, 2011 9:04 am
Bosch Waterpump

Last post by CaptSquid « Fri Sep 30, 2011 6:36 pm

by CaptSquid » Fri Sep 30, 2011 6:36 pm

Any feedback on the Bosch pump? What to recommend?

0 Replies

1744 Views

Last post by CaptSquid
Fri Sep 30, 2011 6:36 pm
Odd temperature problem

Last post by MountainManJoe « Tue Sep 27, 2011 8:18 am
Replies: 3
by JTalley » Mon Sep 26, 2011 2:27 pm

My van heats up quickly, and the gauge usually stays right in the middle, leaning toward the high end. Lately, though, it's been fluctuating pretty...

3 Replies

2428 Views

Last post by MountainManJoe
Tue Sep 27, 2011 8:18 am
Questions concerning water pump replacement

Last post by ihatemybike « Tue Sep 27, 2011 4:00 am
Replies: 12
by astronut74 » Thu Oct 14, 2010 7:46 pm

So I was driving around the other day, and smelled coolant after I stopped. A quick look at the engine, and it appears that the gasket behind the...

12 Replies

6053 Views

Last post by ihatemybike
Tue Sep 27, 2011 4:00 am
getting new radiator

Last post by CaptSquid « Mon Sep 26, 2011 11:24 pm
Replies: 13
by justice » Thu Jun 23, 2011 11:45 am

Getting a new radiator..

2 core size choices, 5/8 and 1 both the same price.

Go with the 1 ?

13 Replies

4998 Views

Last post by CaptSquid
Mon Sep 26, 2011 11:24 pm
On the verge of overheating going up hills?

Last post by LiftedAWDAstro « Fri Aug 19, 2011 7:45 am
Replies: 16
by Derek939 » Fri Jul 29, 2011 7:25 am
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So I'm new to this site, you guys rock! This site is very helpful. But I have a 1991 astro rwd that wants to overheat when going up hills. It drops...
16 Replies

12798 Views

Last post by LiftedAWDAstro
Fri Aug 19, 2011 7:45 am
It finally happened, intake manifold leak, 160K

Last post by LaGrasta « Wed Aug 10, 2011 8:28 am
Replies: 18
by LaGrasta » Thu Jun 30, 2011 7:25 am
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There is a steady stream of water dripping off the back of the engine. I removed the doghouse and can see a leak coming from what I believe is the...
18 Replies

8505 Views

Last post by LaGrasta
Wed Aug 10, 2011 8:28 am
i think i need to replace my fan clutch

Last post by 1Gary « Wed Jul 06, 2011 9:55 pm
Replies: 4
by justice » Fri Jun 03, 2011 9:45 am

On my 2004 cargo, when i first got it, the temp gauge would warm up and stay one mark below the 210 reading. I have noticed lately, now that it has...

4 Replies

2574 Views

Last post by 1Gary
Wed Jul 06, 2011 9:55 pm
Standard VS heavy duty fan clutch?

Last post by Cobra « Mon Mar 28, 2011 7:39 pm
Replies: 5
by oldsmoker » Mon Mar 28, 2011 8:23 am

could anyone explain to the, the difference between a standard and a heavy duty clutch?...think mine might be shot.
I called my dealer and they tell...

5 Replies

2799 Views

Last post by Cobra
Mon Mar 28, 2011 7:39 pm
Is this a GM Problem?

Last post by markmitchinnh « Sat Mar 26, 2011 9:32 am
Replies: 3
by markmitchinnh » Fri Mar 25, 2011 6:20 pm

I have owned many astro/safari models and 3 S-10's and all of them have have had a non functional engine temperature gauges. I would like to have...

3 Replies

1998 Views

Last post by markmitchinnh
Sat Mar 26, 2011 9:32 am
what is or isn't normal re: operating temps?

Last post by doyoulikeithere « Sun Feb 13, 2011 12:19 pm
Replies: 16
by crash » Sat Nov 21, 2009 3:50 am
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I've always wondered... my 99 even in the heat of summer never rises above the 1/4 mark (sits 1 tick below, usually). I'm not sure if that's a good...
16 Replies

10513 Views

Last post by doyoulikeithere
Sun Feb 13, 2011 12:19 pm
COOLENT LEAK

Last post by MountainManJoe « Fri Jan 21, 2011 8:24 am
Replies: 13
by HANKY14 » Sun Jan 16, 2011 3:50 pm

2003 ASTRO LEAKING COOLENT FROM SMALL HOSE (NOT RADIATOR HOSE)) LOOKS LIKE IT MAY BE TO REAR HEATER IS THAT POSSIBLE

13 Replies

4560 Views

Last post by MountainManJoe
Fri Jan 21, 2011 8:24 am
COOLANT FLUSH

Last post by Smiliesafari « Wed Dec 29, 2010 4:44 am
Replies: 13
by nsx1pete » Mon Apr 12, 2010 7:34 pm

HI, I'M A NEWBY TO THE FORUM AND WANTED SOME HELP ON FLUSHING MY COOLANT ON 2002 ASTRO, I CAN'T FIGURE OUT WHAT HEATER HOSE IS THE INLET OR OUTLET,...

13 Replies

10723 Views

Last post by Smiliesafari
Wed Dec 29, 2010 4:44 am
Coolant Temperature Fluctuating Wildly

Last post by ihatemybike « Thu Dec 23, 2010 11:34 am
Replies: 7
by DerekBell » Fri Dec 17, 2010 9:38 am

At cruise, the coolant temperature holds relatively properly. In stop and go traffic, it will frequently dip below normal and heater starts blowing...

7 Replies

3664 Views

Last post by ihatemybike
Thu Dec 23, 2010 11:34 am
Radiator Fan

Last post by BC-Astro « Thu Dec 16, 2010 1:31 pm
Replies: 5
by BC-Astro » Mon Dec 13, 2010 2:50 pm

Hi Guys,

My radiator fan is blowing continuously - even with a cold engine ...
I assume this is not normal because it is too cold outside!

Anny...

5 Replies

2467 Views

Last post by BC-Astro
Thu Dec 16, 2010 1:31 pm
Anti-Freeze-which one??.

Last post by MountainManJoe « Wed Oct 20, 2010 10:42 am
Replies: 10
by 1Gary » Thu Sep 30, 2010 6:42 pm

On the 94 Lt I have the rad out and w/p.I am thinking of buying Prestone(sp)
anti-freeze which is what I have used for yrs.But on the other hand I...

10 Replies

3948 Views

Last post by MountainManJoe
Wed Oct 20, 2010 10:42 am
Coolant leak

Last post by blacknome « Wed Oct 20, 2010 8:00 am
Replies: 23
by Cobra » Sat Oct 02, 2010 6:51 am
1

2
I've been slowly losing coolant for over a week now and have no idea where it's going. i don't see a puddle in my driveway, i don't smell anything...
23 Replies

11651 Views

Last post by blacknome
Wed Oct 20, 2010 8:00 am
Puddle of Anti-freeze

Last post by Rileysowner « Tue Oct 19, 2010 11:45 am
Replies: 12
by Rileysowner » Mon Oct 18, 2010 4:48 pm

I just got home and it is quite dark, but my wife pointed out there was a puddle under the van which you could see when we pulled in. After getting a...

12 Replies

4306 Views

Last post by Rileysowner
Tue Oct 19, 2010 11:45 am
Dye for tracing coolant leaks

Last post by kings-x59 « Fri Aug 27, 2010 7:05 pm
Replies: 6
by 1Gary » Sat Aug 07, 2010 7:53 pm

My 1994LT with a/c and a W engine has a coolant leak that I am having a hard time tracing.I have had the top haft of the shroud (sp) off and still am...

6 Replies

2698 Views

Last post by kings-x59
Fri Aug 27, 2010 7:05 pm
Water pump gaskets are ticking me off

Last post by 1Gary « Tue Aug 17, 2010 3:12 pm
Replies: 14
by ihatemybike » Fri Aug 06, 2010 11:23 pm

For the third time in about a year Green has blown a water pump gasket. )>)

I don't remember the other times, but this time it's the passenger side...

14 Replies

5093 Views

Last post by 1Gary
Tue Aug 17, 2010 3:12 pm
Dexcool and intake gaskets

Last post by Rebel « Mon Aug 16, 2010 9:15 am
Replies: 2
by 1Gary » Mon Aug 16, 2010 5:16 am

I thought this article would be helpful and interesting:

2 Replies

1492 Views

Last post by Rebel
Mon Aug 16, 2010 9:15 am
Cooling Fan

Last post by stevieb « Tue Jul 20, 2010 8:44 am
Replies: 2
by stevieb » Tue Jul 20, 2010 6:29 am

I'm removing the cooling fan on my 2000 4.3 Astro van. Is that fan threaded onto the waterpump shaft or just held on by the pulley bolts ?

2 Replies

1529 Views

Last post by stevieb
Tue Jul 20, 2010 8:44 am
Redtek in current system

Last post by Rileysowner « Tue Jul 06, 2010 6:28 am
Replies: 2
by Rileysowner » Mon Jul 05, 2010 8:21 pm

I am wondering if the new Redtek A/C coolant can be mixed with the current coolant in the A/C system? I know the local regulations require the system...

2 Replies

1517 Views

Last post by Rileysowner
Tue Jul 06, 2010 6:28 am
Radiator hose inner diameter?

Last post by Lumpy « Fri Jun 25, 2010 4:52 pm
Replies: 2
by violent b » Mon Jun 09, 2008 2:23 pm

anyone know what the inner diameter of a 1995 Chevy Astro radiator hose is? I'm adding a water temp gauge and need to splice into the radiator hose,...

2 Replies

1651 Views

Last post by Lumpy
Fri Jun 25, 2010 4:52 pm
What it the beef with Dexcool?

Last post by rlsllc « Mon Jun 21, 2010 7:34 pm
Replies: 4
by dcarlson12 » Mon Jun 21, 2010 11:03 am

I have run it (Dexcool) in our 2000 Astro 2wd since new.
Only recently did I decide to do a flush after I found what appeared to an almost gelatinous...

4 Replies

2977 Views

Last post by rlsllc
Mon Jun 21, 2010 7:34 pm
Radiator Recomendations?

Last post by Great A'Tuin « Mon May 24, 2010 10:37 am
Replies: 2
by Great A'Tuin » Sun May 23, 2010 7:40 pm

Does anyone have experience w/ any of the 1 radiators from Replacement or Nissens? I've always had good results w/ Nissens (OE on my SAABs) and some...

2 Replies

1506 Views

Last post by Great A'Tuin
Mon May 24, 2010 10:37 am
Would faulty rad cap cause coolant loss and reduced eng temp

Last post by dcarlson12 « Mon May 03, 2010 8:41 pm
Replies: 3
by dcarlson12 » Sun May 02, 2010 1:06 pm

Just noticed yesterday on 2000 Chevy Astro 288000 km that coolant level in expansion reservoir was below ADD level.
Added antifreeze and water...

3 Replies

2083 Views

Last post by dcarlson12
Mon May 03, 2010 8:41 pm
Choosing the right antifreeze-Popular Mechanics article

Last post by 1Gary « Sun Mar 21, 2010 7:16 am

by 1Gary » Sun Mar 21, 2010 7:16 am

I thought with our vans having aluminum intakes and such this article would be interesting for you all.

From Popular Mechanics:

0 Replies

1421 Views

Last post by 1Gary
Sun Mar 21, 2010 7:16 am
Block/Circulating Tank Heaters

Last post by BREAK « Mon Dec 14, 2009 12:42 pm
Replies: 7
by BREAK » Sat Dec 12, 2009 12:46 pm

I need to get some block heating hardware installed on at least one of my vans so my girlfriend will quit starting them 20 minutes before she leaves...

7 Replies

4001 Views

Last post by BREAK
Mon Dec 14, 2009 12:42 pm
Looks like I'll be replacing my fan in the very near future.

Last post by astronut74 « Mon Nov 16, 2009 8:06 am
Replies: 14
by astronut74 » Sun Nov 08, 2009 2:21 pm

So I pulled over at a gas station today to check tire pressure, oil level... crap I really shoulda done BEFORE I left the house... well while...

14 Replies

4544 Views

Last post by astronut74
Mon Nov 16, 2009 8:06 am
Peak Global lifetime antifreeze

Last post by LaGrasta « Sat Nov 14, 2009 7:51 am
Replies: 1
by BREAK » Fri Nov 13, 2009 8:27 pm

The last few years I've been using Peak Global lifetime antifreeze in my truck. I like that you can mix it with any other antifreeze and it's...

1 Replies

1722 Views

Last post by LaGrasta
Sat Nov 14, 2009 7:51 am
New water pump gaskets = disintegrated

Last post by rlsllc « Sat Nov 07, 2009 9:06 am
Replies: 4
by ihatemybike » Fri Nov 06, 2009 3:21 pm

So, I recently had to replace the water pump gaskets on Green due to the drivers side gasket leaking. The first time I had it out on the road with...

4 Replies

1839 Views

Last post by rlsllc
Sat Nov 07, 2009 9:06 am
What going on in my Radiator?

Last post by astroturf « Fri Oct 23, 2009 6:24 pm
Replies: 33
by jbird » Sun Oct 11, 2009 5:21 pm
1

2

3
What is going on?

Getting a replacment! What Brand would you perfer?
33 Replies

10184 Views

Last post by astroturf
Fri Oct 23, 2009 6:24 pm
Rad fan nut

Last post by Cobra « Tue Sep 22, 2009 3:28 pm
Replies: 4
by Cobra » Mon Sep 21, 2009 5:50 pm

so what size is the rad fan nut i know it's over 1 inch i'd like to pick up the wrench at work tomorrow (mind you i'm not sure there is enough left...

4 Replies

1824 Views

Last post by Cobra
Tue Sep 22, 2009 3:28 pm
Coolant Temp. Sensor??

Last post by Smiliesafari « Mon Sep 14, 2009 6:16 pm
Replies: 2
by MOlynyk » Mon Sep 14, 2009 3:16 pm

Hi,

I've got an 86 Astro Class C Motorhome 4.3 V6.
Problem is my temp. idiot light will not turn off. It flickers on and off and will be on or off...

2 Replies

1686 Views

Last post by Smiliesafari
Mon Sep 14, 2009 6:16 pm
Radiator replacement

Last post by LaGrasta « Thu Sep 03, 2009 2:31 pm
Replies: 13
by safari2000 » Wed Jun 24, 2009 7:03 pm

My radiator has started to leak pretty severely at higher temps. I am planning on pulling it out this weekend. My questions are:

Has anyone else...

13 Replies

7174 Views

Last post by LaGrasta
Thu Sep 03, 2009 2:31 pm
Thermostats

Last post by e7ats « Fri Jul 17, 2009 12:26 pm
Replies: 7
by afsigma21 » Fri Jun 05, 2009 11:06 am

Anyone ever installed a lower temp thermostat? I ordered, but have not installed, a 180* thermostat.

I am pretty sure mine is currently not opening...

7 Replies

2892 Views

Last post by e7ats
Fri Jul 17, 2009 12:26 pm
upper rad hose sucked flat.. what the..?

Last post by crash « Sat Jul 11, 2009 3:42 am
Replies: 8
by crash » Fri Jul 10, 2009 5:38 pm

this one isn't for me, it's my neighbor. regardless.. I've never seen it before..

01 caravan 3.3L .. he just did a rad, both hoses, heater core,...

8 Replies

2778 Views

Last post by crash
Sat Jul 11, 2009 3:42 am
Overheating, then not, then again

Last post by afsigma21 « Mon Jun 15, 2009 5:55 am
Replies: 19
by afsigma21 » Sat Sep 27, 2008 5:29 pm
1

2
The van starts up and runs until it reaches operating temperature. Once it passes 180, then 190 and so on, it just keeps climing, until it is well...
19 Replies

5970 Views

Last post by afsigma21
Mon Jun 15, 2009 5:55 am
Does a trans cooler raise the temp of the engine?

Last post by Rebel « Thu Jun 04, 2009 2:19 pm
Replies: 2
by pengyou » Thu Jun 04, 2009 10:48 am

I was wondering if you put a transmission cooler in front of the radiator it seems that it will raise the temperature of the air that is actually...

2 Replies

1585 Views

Last post by Rebel
Thu Jun 04, 2009 2:19 pm
This radiator OK?

Last post by LiftedAWDAstro « Tue Apr 14, 2009 6:35 am
Replies: 2
by afsigma21 » Mon Apr 13, 2009 6:24 am

Anyone see a problem with this one? I assume most mew aftermarket radiator's are pretty much the same, this one is about $30 cheaper than Rockauto.

2 Replies

1432 Views

Last post by LiftedAWDAstro
Tue Apr 14, 2009 6:35 am

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