Recent Topics
Jeep Cherokee Rumble
by Nick1994 - 11/20/19 11:48 PM
2021 RAV4 Hybrid AWD hot rod
by AZjeff - 11/20/19 10:50 PM
0W30 with MB 229.52 and VW 507 for Canadians
by Snagglefoot - 11/20/19 10:12 PM
Need new Binoculars
by FirstNissan - 11/20/19 09:47 PM
Fram Extra Guard now rated to 10k miles
by addyguy - 11/20/19 08:47 PM
HF Mechanic's Cart Coupon
by TheLawnRanger - 11/20/19 08:45 PM
Factory Fill 2019 VW Jetta 1.4t
by DuckRyder - 11/20/19 08:12 PM
Castrol Edge Professional LL IV FE 0W/20 (VW508)
by DuckRyder - 11/20/19 08:08 PM
2019 Kia Sedona - Oil Filter Housing
by XpressAuto - 11/20/19 07:46 PM
Belt/ Tensioner wear
by bruckus - 11/20/19 07:42 PM
Eneos CVT fluid
by bbhero - 11/20/19 07:38 PM
Game changer?
by P10crew - 11/20/19 07:34 PM
Permatex Brake Lubricant
by Snagglefoot - 11/20/19 07:01 PM
2015 BMW 328i Pennzoil Platinum 5w40 Euro
by TurboJW - 11/20/19 06:55 PM
STP S2808 (Blue) now also a H/K clone
by wemay - 11/20/19 06:30 PM
New to shortwave radio
by cwilliamsws6 - 11/20/19 06:22 PM
Ford Tempo
by Eric Smith - 11/20/19 05:40 PM
quick FL-910s C&P
by BeerCan - 11/20/19 04:50 PM
Adding keyless entry to an older car
by atikovi - 11/20/19 04:36 PM
Newest Members
ImBoosted, XpressAuto, Jmpage388, baileyclarke, Jbloggs
69924 Registered Users
Who's Online Now
32 registered members (Daschicken, aleneros, carlprop, clinebarger, CDX825, 3 invisible), 991 guests, and 24 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics297,702
Posts5,120,978
Members69,924
Most Online3,589
Nov 2nd, 2019
Donate to BITOG
Print Thread
Hop To
Radiator Half Full #5112018 05/22/19 06:04 AM
Joined: Sep 2009
Posts: 1,110
M
Mark72 Offline OP
OP Offline
M
Joined: Sep 2009
Posts: 1,110
Trying to be optimistic as to whether I should view the radiator as half full or half empty...LOL. So I noticed a small puddle the other day. Opened the hood and the reservoir was almost empty. After driving home form work the radiator cap was still cold. Thought that was odd. Opened it, and no coolant. The radiator was warmer about halfway down so I assume there was some in there. I'm getting it fixed. I think its a hose because I see dry residue around the passenger side. So long as there was some fluid in the radiator, should I be ok?

Re: Radiator Half Full [Re: Mark72] #5112025 05/22/19 06:11 AM
Joined: Nov 2008
Posts: 14,785
S
supton Offline
Offline
S
Joined: Nov 2008
Posts: 14,785
Not really. Low level means it probably isn't circulating real well. The thermostat has a small hole in it meant to burp air, so that level was the level in the block too--which might be below the water pump.

Most temp sensors need coolant on them to read properly--recently I read on here that some Fords will read properly, though.

But in the end, any damage done is already done. With any luck, there was none. The head would be the first to run hotter (highest up), which could lead to preignition. If it wasn't knocking I'd be tempted to not worry about it.


2011 Toyota Camry, base, 2.5L/6MT, 196k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 155k, ours
1999 Toyota Camry LE, 2.2L/4AT, 217k, his
Re: Radiator Half Full [Re: Mark72] #5112031 05/22/19 06:18 AM
Joined: Mar 2004
Posts: 23,139
D
Donald Offline
Offline
D
Joined: Mar 2004
Posts: 23,139
I would not have driven it if I thought there was a problem of loss of coolant.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Radiator Half Full [Re: Mark72] #5112041 05/22/19 06:31 AM
Joined: Oct 2010
Posts: 10,066
Astro14 Offline
Offline
Joined: Oct 2010
Posts: 10,066
You might be OK.

You might not.

When the coolant level gets low enough, a couple of things can happen; the thermostat won’t open, because it needs hot water to open, the water pump won’t circulate because it’s sucking air and the temperature gauge won’t work because it’s reading air, not hot water. In those cases, damage is happening, but your dash won’t tell you, because the gauge isn’t reading accurately.

Did you get that low?

Can’t tell from your description.

I hope you didn’t...


32 Packard 15W40
01 Volvo V70 T5 0W30 AMSOIL SS
02 Volvo V70 T5 0W30 Edge
02 Volvo V70 XC 0W40 Edge
05 MB S600 0W40 M1
16 Tundra 1794 5W30 Pennzoil Ultra
Re: Radiator Half Full [Re: Mark72] #5112054 05/22/19 06:48 AM
Joined: Jan 2013
Posts: 3,468
W
WyrTwister Offline
Offline
W
Joined: Jan 2013
Posts: 3,468
What car ? What engine ?

Have your mechanic go over it with a fine tooth comb , looking for leaks and signs of a blown head gasket , non functional pans , defective tstat , defective water pump etc. .

Were it me , I would replace all the coolant hoses , Tstat , hoses , belt / belts . Pressure test al the above + radiator . Radiator may need cleaning and / or replacing .

You MAY have dodged a bullet , do not skimp out on this .


Wyr
God bless
Re: Radiator Half Full [Re: Mark72] #5112116 05/22/19 07:40 AM
Joined: May 2019
Posts: 2,647
M
Mad_Hatter Offline
Offline
M
Joined: May 2019
Posts: 2,647
Originally Posted by Mark72
Trying to be optimistic as to whether I should view the radiator as half full or half empty...LOL. So I noticed a small puddle the other day. Opened the hood and the reservoir was almost empty. After driving home form work the radiator cap was still cold. Thought that was odd. Opened it, and no coolant. The radiator was warmer about halfway down so I assume there was some in there. I'm getting it fixed. I think its a hose because I see dry residue around the passenger side. So long as there was some fluid in the radiator, should I be ok?


Holy moley dude, did you pop open the radiator cap to see if there was coolant in the radiator at least before you drove home?

If not, then you actually don't have any idea how low/how much coolant your system had while driving home. You may or may not have dodged a bullet but if it were me I'd do as one other person suggested and get it into a shop and have a mechanic look at it. I'm sure you know that there's a buttload of problems that can be caused by high heat due to low coolant.

Some of the problems are in the "screw it, I'm selling the car" category of warped heads/cylinder cracking etc, but you won't know for sure until you have it looked at properly.

Last edited by Mad_Hatter; 05/22/19 07:43 AM.
Re: Radiator Half Full [Re: Mark72] #5112180 05/22/19 08:30 AM
Joined: Sep 2009
Posts: 1,110
M
Mark72 Offline OP
OP Offline
M
Joined: Sep 2009
Posts: 1,110
nope frown I drove it home...uuuughh.. This a 99 Olds 88. This one is actually my sons (grin). I did open the cap, I could see no water. But half the radiator was warm which leads me to believe there was water in it halfway down. So... maybe I dodge the bullet and the engine had water running through it?

Re: Radiator Half Full [Re: Mark72] #5112208 05/22/19 08:49 AM
Joined: Aug 2005
Posts: 172
M
meadows Offline
Offline
M
Joined: Aug 2005
Posts: 172
Put water in it, drive it, you’ll find out if you got problems.

Re: Radiator Half Full [Re: Mark72] #5112222 05/22/19 09:06 AM
Joined: Jan 2013
Posts: 3,468
W
WyrTwister Offline
Offline
W
Joined: Jan 2013
Posts: 3,468
I would not put water in it , from the tap .

So , low on coolant ? Your Son's fault ? ( Did it show hot on the dash ? )

If his fault , he should pay for the repairs ( tough love ) .


Wyr
God bless
Re: Radiator Half Full [Re: Mark72] #5112316 05/22/19 10:44 AM
Joined: Aug 2005
Posts: 172
M
meadows Offline
Offline
M
Joined: Aug 2005
Posts: 172
Does it matter what kind of water he uses, he will have to drain it out to fix the leaks anyway. He said he had puddles underneath it.

Re: Radiator Half Full [Re: Mark72] #5112544 05/22/19 02:48 PM
Joined: Jun 2003
Posts: 34,917
E
eljefino Offline
Offline
E
Joined: Jun 2003
Posts: 34,917
Most cars, when you drive them, the water pump sucks coolant from the bottom of the rad, pushes it up through the engine, and it hits the thermostat at top and bounces around the heater bypass circuit until said thermostat opens.

Your 3.8 is like this, I'm pretty sure.

So the "extra" coolant winds up in the engine, then it passes the thermostat, through the top hose, "waterfalls" down your half-empty radiator, losing some heat, but not much, then returns to the engine for another go-round.

I bet you did fine.

Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™