1998 Oldsmobile Silhouette cooling system

1998 OLDSMOBILE SILHOUETTE
170,000 MILES • 6 CYL • FWD • AUTOMATIC
Avatar
TIMELESS48
  • MEMBER
  • 1 POST
my friends sillouette, heats up too hot and then drops down to too cool, He changed the leaking water pump and somewhat flushed the system. when it heats up too much the heater in the van gets very hot, but when it drops down it does not throw any heat, Got any ideas on this---thanx -Rick
Jan 16, 2010 at 8:19 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
BILLYMAC
  • CAR REPAIR CONTRIBUTOR
  • 2,204 POSTS
Hi
this is caused usually by two things.thermostat failing.
or air in the system. this eng has a bleeder near the tstat housing run the eng until norm operateing temp. loosen this bleeder when pure coolant is flowing system is bled..
Jan 16, 2010 at 8:33 PM
Advertisement