Question about Cars & Trucks
Sounds like air in the cooling system. Try taking radiator cap off and letting the vehicle run with heater on high. As bubbles come out add coolant. This may take 20 minutes to a half hour.
Posted on Nov 25, 2013
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
SOURCE: heater only blows warm air.
The hoses from your heater core should be very hot to the touch. Check the hoses going to the core from the water pump. It should be very hot. The return hose should also be very hot. Now check the hoses going to the core. If they are not the same temp, then your heater control valve is not working correctly or the vacuum is not working. At any rate, locate the vacuum line going to the heater valve. Remove the silver bar on the valve from the plastic plunger arm. You will have heat all the time now if it was only a vacuum problem. You can fix it later when it's warmer out. BTW a 200* thermostat will make your heater even hotter.
Posted on Nov 21, 2008
Your problem is the air temp control blend door actuator is defective and not controlling temp u set. to change/access this part the dash assembly must be removed from the car.
Posted on Mar 24, 2009
SOURCE: blowing cold air via the heater
Assuming that none of the Electrical/Electronic controls were disturbed when changing the Thermostat it seems to me that you have an "Air Lock" within the heater. One must purge all the air out of the cooling system as close to the highest point as possible after the system has been partially or fully drained. Most of the time one will find small BRASS Bleeder Valves located somewhere near the highest point. Open each one while the system is pressurized and let Air escape until some Coolant escapes. Sometimes it may be necessary to loosen a Heater Hose and bleed the air at that point. Remember that the system MUST BE PRESSURIZED to accomplish the Bleeding of Air. Many auto parts stores sell hand pumps with a pressure gauge for this purpose and leak testing. These pumps typically replace the Radiator Pressure Cap temporarily. The system does not have to be at normal operating temperature to bleed the air out. Once the Air has been bled you will have to refill the radiator to normal full and make sure that the Coolant Recovery Tank level is also brought up to recommended level. A quick check is to remove the Radiator Pressure Cap, Start the Engine, Rev the engine suddenly (A short Jab) and see if the coolant level falls rapidly in the radiator. If it does it is definitely an AIR LOCK situation.
Posted on Nov 19, 2009
Testimonial: "Thank you, I'll do the quick jab test to determine the air lock and proceed with bleeding"
Tips for a great answer:
Feb 19, 2013 | 2001 Suzuki Grand Vitara
Feb 01, 2013 | 2003 Dodge Caravan
Jan 07, 2011 | 1999 Pontiac Montana
Dec 01, 2010 | 2001 Dodge Stratus
Dec 04, 2009 | 1989 Lincoln Town Car
Nov 12, 2009 | 2002 Chevrolet S-10
Jul 15, 2009 | 2004 Chevrolet Silverado 1500 Crew Cab
May 18, 2017 | 2005 Lexus SC300
Nov 21, 2008 | 1998 Jeep Cherokee
148 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: