08 impala no heat at idle - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Chevrolet When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 04-02-2013, 08:23 AM   #11
Senior Member
Posts like a Turbo
 
Shaun_300's Avatar
 
Join Date: Feb 2012
Location: Ottawa, Ontario
Posts: 308
Thanks: 0
Thanked 1 Time in 1 Post
Shaun_300 is on a distinguished road
Default

These things are HORRIBLE for air locks. Any little air lock will trap in the heater hoses and cause no heat at an idle. Since they appear to be the highest spot in the cooling system.

When looking from the front of the car, you'll see the two heater hoses loop up behind the throttle body area. When the engine is cold and there'* no pressure in the cooling system, remove the one on the right where it hooks into the metal pipe. Get a small funnel to fit into the rubber end and fill the hose (which fills the heater core) with coolant until it'* full. Then fill the steel pipe the same way and quickly put the rubber hose back onto the steel one with losing as little coolant as possible. Run the car at around 2500RPM until the thermostat opens then let it come to an idle, should be a lot better if not perfect. Might have to repeat again to get it 100%.
Shaun_300 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
04 Impala rough Idle and hard warm engine starts ngehrke Chevrolet 4 03-26-2013 10:28 AM
Runs hot - no heat - then temp drops and heat works?? atp 2000-2005 15 12-16-2009 07:46 AM
Anyone have an Impala or Impala service manual 92BonneSE Lounge 7 05-28-2007 01:53 AM
Heat blowing cold + flashing heat controls after 20 sec chilump 1992-1999 23 02-08-2007 11:48 AM
Anyone here heat with oil heat? I have questions? h1081dan Lounge 3 11-14-2004 05:22 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 11:31 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.