Question about 2002 Jeep Liberty
Jeep Liberty, 2002; large engine (Minnesota - is cold here)
When coming to a stop, at a traffic light for example, the air temperature from the heater goes cold; COLD, not just cool. Fan remains on. Coolant is at the proper level. Heat gauge does not drop (about in 12oclock position).
Have covered the front radiator with cardboard (is loose, outside temp is below zero - no gauge movement) This did not help at all. Belts are good. No leaking of fluids have been seen. No engine codes.
Ok, judging from what you've said it sounds like a vacuum issue. The temperature controls are activated by vacuum which is produced by the engine. Look for small hoses that lead from the intake manifold to the firewall, check them and make sure they are not broken, disconnected, or leaking. The vacuum directly controls the doors inside your dashboard which push the air to the heater core. Also make sure that the coolant hoses going to and from the firewall are hot. If all that checks out, then the controls inside the car may have gone bad, or may have become disconnected from the vacuum supply, or the actuator door inside the dash is stuck or broken.
Posted on Dec 23, 2008
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Nov 25, 2013 | 2002 Jeep Liberty
Jan 16, 2011 | 2002 Jeep Liberty
Jul 01, 2010 | 2002 Jeep Liberty
Apr 26, 2010 | 2002 Jeep Liberty
Apr 12, 2010 | 2002 Jeep Liberty
Dec 18, 2008 | 2002 Jeep Liberty
Dec 05, 2008 | 2002 Jeep Liberty
Nov 09, 2008 | Jeep Liberty Cars & Trucks
Oct 28, 2008 | 2002 Jeep Liberty
672 people viewed this question
Usually answered in minutes!