Heater blows luke warm air and goes a bit cooler.

Tiny
ALSODER
  • MEMBER
  • 1988 OLDSMOBILE CIERA
  • 59,000 MILES
Heater blows luke warm air and goes a bit cooler even when car is warmed up. I replaced the thermostat it is a 180 stock and a new heater core. Could the radiator have a clog in it? Somtimes the temp gage will spike and then it will come back down. Thanks Alan Soderstrom
Wednesday, January 16th, 2013 AT 7:53 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Thats an issue. It has overheated and you very well nay have blown a head gasket. Get a leak down test to verify the gaskets are good.

Also, change the thermostat to 195. Makes better heat and car runs better. Runs rich at 180 and you use more gas

Roy
Was this
answer
helpful?
Yes
No
Thursday, January 17th, 2013 AT 1:35 AM

Please login or register to post a reply.

Related Heater Not Working Content

Heater Not Working
VIDEO
Heater Not Working
Instructional repair video
Heater Not Working
GUIDE
Heater Not Working
Step 1 - A heater cannot operate unless the engine is full of coolant/antifreeze. If coolant level is low check the system for leaks.
VIEW MORE