0
Things to check/eliminate: Possibly the thermostat is stuck in the open position and won't allow the engine to build hot water. You can possibly feel if there is flow thru the heater hose near the firewall. If you have recently replaced a broken hose this could be a possibility. Could be the heater control valve is inoperative. If no hot water is getting past the valve it will blow only cold air. Suspect this valve is either vacuum/electrically controled. Hopefully a vacume hose end rotted or theres a hole. Fairly easy to replace or if its long elongh cut the bad part off and reinstall Hope this input helps, Terry
Wiki User
∙ 17y ago
Add your answer:
Earn +20 pts
What would cause a 97 lumina to start hard in cold weather?
1993 Volvo 850 : Where would a cold start injector be located - only see 5 injectors. ... 1995 Chevrolet Lumina : 1995 Chevy lumina van. motor dies at low speeds. more ... 1992 Ford Explorer : what would cause high oil pressure blow by on my 92 ... Thanks for your hard work, and impressive contributions to this ...
What could be causing the heat to blow cold and then hot I have a 97 Chevy Lumina?
Could be low on coolant.
How much would it cost to replace a blowin headgasket on a 1997 Lumina?
What is the avearage cost to fix a blow headgasket on a 98 lumina
92 lumina and when you turn on the heat or air it will only blow from the floor and defrost it wont blow from the front vents what would cause this problem?
vacuum leak the vacuum reservoir is below the left head light, check the hoses
Why doesn't my 1999 Chevy lumina blow cold air?
possibly low on freeon. ** Fairly cheap fix from the local auto parts store.
Would a faulty alternator cause a headlight to blow out?
Yes it can cause bulbs to blow.
On a 1998 Chevy blazer what would cause the heater to blow cold air?
Check Antifreeze level..make sure there are no leaks under the vehicle.
Why in 1995 Chevy lumina heat does not blow out vent?
Check for vacuum leak either under hood or under dash Check for bad vacuum actuator under dash
What would cause a 85 Chevy Caprice to only blow out cool air with it all the way up?
Have you checked the heater core? It's happened to me before.
What would cause the heater to blow only cool to warm air not hot air in a 2004 Chevy Impala?
It could be that you need coolant or it's low.
Why does a 2002 Mitsubishi Galant only blow cold air and not overheat?
I had a similar problem with Chevy Lumina when the thermostat went out. It was stuck open so the car never got up to a temp high enough to blow hot air. Kerry
You had 3 cans of freon put in a 1993 Chevy Lumina but it doesnt blow cold air How can you trouble shoot to find out what the problem is?
Chances are your leaking freon. There may be a leak in one of the seals.
