NAIOA.comNAIOA.comNAIOA.com
 Create an Account
 

  
NAIOA Impala Forums :: View topic - 06 Impala Cooling system wierdness
GarageGarage    1/4 Mile Table1/4 Mile Table    Forum FAQForum FAQ    SearchSearch    UsergroupsUsergroups   MedalsMedals
MemberlistMemberlist   ProfileProfile    Watched TopicsWatched Topics    Log in to check your private messagesLog in to check your private messages    Log inLog in 

06 Impala Cooling system wierdness
Goto page 1, 2  Next
 
Post new topic   Reply to topic    NAIOA Impala Forums Forum Index -> Problems with my car!
View previous topic :: View next topic  
Author Message
davericher20
Cadet
Cadet


Joined: Oct 27, 2008
Posts: 54
Posts per day: 0.02
Location: Ontario

2006 Chevrolet Impala


PostPosted: Wed Jul 20, 2011 5:53 pm    Post subject:  06 Impala Cooling system wierdness Reply with quote

Hey Guys,
06 Impala, just rolled over 251,000kms (155,000 miles)

It's been REALLY hot here lately up in the great white north 113 deg today and could hit almost 120 tomorrow.

Last week it was really hot too and I noticed the temp gauge creeping up over the halfway mark which made me raise an eyebrow.....after turning it off for a few minutes and getting back in the car the temp gauge had shot up over the 3/4 mark while sitting, after revving the engine it would go back to normal....but while coasting the needle would hover over the halfway mark.
I open the hood and find the cap to the coolant reservior open so I shut it and it ran fine after that. So I thought it fixed it because the system wasn't pressurized or something.

FF to today one of the hottest days of the year it starts creeping up again in slow traffic, then back to normal at highway speeds (airflow obviously)
So I thought it was the cap off again, nope, cap is perfectly situated with no leaks in the system or under the car. It runs like it did the day I got it it's just the temp issue.

This car has NEVER creeped over the halfway mark before so it's making me suspicious. Could it be low on coolant? I checked it and the level is completely normal. I had a flush 2 years ago as well.
Is it just this hot weather?
What are your thoughts?
Back to top
View user's profile Send private message
gdoggy
Resident
Resident


Joined: Oct 25, 2007
Posts: 531
Posts per day: 0.15


2009 Chevrolet Impala


PostPosted: Wed Jul 20, 2011 6:12 pm    Post subject:   Reply with quote

My guess would be a bad water pump or air bubbles in the coolant.
Back to top
View user's profile Send private message
davericher20
Cadet
Cadet


Joined: Oct 27, 2008
Posts: 54
Posts per day: 0.02
Location: Ontario

2006 Chevrolet Impala


PostPosted: Wed Jul 20, 2011 6:13 pm    Post subject:   Reply with quote

i forgot to mention the waterpump was replaced less than a year ago
Back to top
View user's profile Send private message
gdoggy
Resident
Resident


Joined: Oct 25, 2007
Posts: 531
Posts per day: 0.15


2009 Chevrolet Impala


PostPosted: Wed Jul 20, 2011 7:20 pm    Post subject:   Reply with quote

davericher20 wrote:
i forgot to mention the waterpump was replaced less than a year ago


For what reason? It could still be bad again.
Back to top
View user's profile Send private message
davericher20
Cadet
Cadet


Joined: Oct 27, 2008
Posts: 54
Posts per day: 0.02
Location: Ontario

2006 Chevrolet Impala


PostPosted: Wed Jul 20, 2011 7:23 pm    Post subject:   Reply with quote

gdoggy wrote:
davericher20 wrote:
i forgot to mention the waterpump was replaced less than a year ago


For what reason? It could still be bad again.


leaky gasket, the pump was fine, just a small leak from the gasket, sooo, a while you're in there job.
Back to top
View user's profile Send private message
Bill58
Resident
Resident
Silver Contributor (Amount: 1) Silver Contributor


Joined: Oct 31, 2008
Posts: 650
Posts per day: 0.2
Location: Maryland

2006 Chevrolet Impala
2005 Chevrolet Impala


PostPosted: Wed Jul 20, 2011 7:47 pm    Post subject:   Reply with quote

Are your fans coming on?
Have coolant in the puke tank?
The '06 temp gauge is as nonlinear as they get. Mine gets to center fast even in winter and just sits there. When the fans cycle on & off the needle barely moves, < a needle width. It would get my attention if the needle went above half scale.
The '00-'05 is a much better gauge, it actually moves.
Back to top
View user's profile Send private message
davericher20
Cadet
Cadet


Joined: Oct 27, 2008
Posts: 54
Posts per day: 0.02
Location: Ontario

2006 Chevrolet Impala


PostPosted: Wed Jul 20, 2011 7:54 pm    Post subject:   Reply with quote

that's the first thing I checked, and yep, everything seems normal except for the gauge. When I rev the engine it moves back to the middle.
Same as you my temp gauge has never gone past the middle mark since I've owned it.
Back to top
View user's profile Send private message
Bill58
Resident
Resident
Silver Contributor (Amount: 1) Silver Contributor


Joined: Oct 31, 2008
Posts: 650
Posts per day: 0.2
Location: Maryland

2006 Chevrolet Impala
2005 Chevrolet Impala


PostPosted: Wed Jul 20, 2011 8:08 pm    Post subject:   Reply with quote

Might want to have an exhaust gas analyzer check for CO at the coolant fill cap.
Take the fill cap off and run engine and sniff for CO in coolant. Just to make sure the head gaskets are ok.
no CO = good head gasket
CO in coolant = problems
You did say the fans cycle ok, right?
Back to top
View user's profile Send private message
davericher20
Cadet
Cadet


Joined: Oct 27, 2008
Posts: 54
Posts per day: 0.02
Location: Ontario

2006 Chevrolet Impala


PostPosted: Wed Jul 20, 2011 10:25 pm    Post subject:   Reply with quote

both the fans are running fine. Are these electric fans? or do they have a fan clutch? On my BMW E30 it has a fan clutch and that goes bad which causes it to overheat at low rpm......
Back to top
View user's profile Send private message
Bill58
Resident
Resident
Silver Contributor (Amount: 1) Silver Contributor


Joined: Oct 31, 2008
Posts: 650
Posts per day: 0.2
Location: Maryland

2006 Chevrolet Impala
2005 Chevrolet Impala


PostPosted: Wed Jul 20, 2011 10:32 pm    Post subject:   Reply with quote

Fans are electric, no clutch.
Thermostat opening all the way? Top rad hose should be hot, bottom rad hose not as hot as the top hose.
Is cooling system full? With engine cold remove the coolant fill cap, it should be full.
Back to top
View user's profile Send private message
davericher20
Cadet
Cadet


Joined: Oct 27, 2008
Posts: 54
Posts per day: 0.02
Location: Ontario

2006 Chevrolet Impala


PostPosted: Thu Jul 21, 2011 12:40 pm    Post subject:   Reply with quote

No it's not full to the top, it's about halfway down, but I've never had problems with it being that far down. I also can't see a "fill line" on the reservoir.....how full should it be?
Back to top
View user's profile Send private message
Bill58
Resident
Resident
Silver Contributor (Amount: 1) Silver Contributor


Joined: Oct 31, 2008
Posts: 650
Posts per day: 0.2
Location: Maryland

2006 Chevrolet Impala
2005 Chevrolet Impala


PostPosted: Thu Jul 21, 2011 1:15 pm    Post subject:   Reply with quote

davericher20 wrote:
No it's not full to the top, it's about halfway down, but I've never had problems with it being that far down. I also can't see a "fill line" on the reservoir.....how full should it be?

Sorry, I was referring to the fill cap on the engine. The reservoir/puke-tank is fine 1/2 full.
Is the antifreeze in the engine full?
Back to top
View user's profile Send private message
davericher20
Cadet
Cadet


Joined: Oct 27, 2008
Posts: 54
Posts per day: 0.02
Location: Ontario

2006 Chevrolet Impala


PostPosted: Thu Jul 21, 2011 2:27 pm    Post subject:   Reply with quote

just checked, and no it's not full, this should be topped up with dex tron coolat (sp?) or is distilled water okay?
Back to top
View user's profile Send private message
Bill58
Resident
Resident
Silver Contributor (Amount: 1) Silver Contributor


Joined: Oct 31, 2008
Posts: 650
Posts per day: 0.2
Location: Maryland

2006 Chevrolet Impala
2005 Chevrolet Impala


PostPosted: Thu Jul 21, 2011 2:43 pm    Post subject:   Reply with quote

Dexcool and distilled @ 50/50 % is best but put what you have directly in the engine. You can start the engine and add coolant directly in the engine then put the cap on before the engine gets hot.
If the problem persists recheck for leaks then get the head gaskets checked as described in prior post.
Back to top
View user's profile Send private message
davericher20
Cadet
Cadet


Joined: Oct 27, 2008
Posts: 54
Posts per day: 0.02
Location: Ontario

2006 Chevrolet Impala


PostPosted: Thu Jul 21, 2011 10:31 pm    Post subject:   Reply with quote

Thanks I'll do that, appreciate the help.

so just to be safe, the coolant reservior at the back of the engine bay on the passenger side is supposed to 1/2 full........and the coolant cap bolted on the side of the engine is supposed to be full to the top......
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    NAIOA Impala Forums Forum Index -> Problems with my car! All times are GMT - 4 Hours
Goto page 1, 2  Next
Page 1 of 2

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Powered by phpBB © 2001, 2005 phpBB Group
Forums ©
All logos and trademarks in this site are property of their respective owner. Comments and posts are property of the poster. All other content is © 2008 by the NAIOA.


Use of this site constitutes agreement with the NAIOA Terms of Service (TOS)


PHP-Nuke Copyright © 2005 by Francisco Burzi. This is free software, and you may redistribute it under the GPL. PHP-Nuke comes with absolutely no warranty, for details, see the license.
Server Local Time: September 24, 2017, 5:31:26 am
Page Generation: 0.11 Seconds ( SQL 45:135 in 0.01 Seconds )