1987 Chevy Van Overheats

1987 CHEVROLET VAN
185,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
JJC28
  • MEMBER
  • 2 POSTS
1987 G20 Chevy Van Overheats replaced thermostat heater core
Jan 8, 2011 at 7:37 AM
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
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Check the radiator if its clogged and water pump if its pumping coolant thruout the engine-if all okay -Get it block and pressure tested
Jan 8, 2011 at 7:51 AM
Advertisement
Avatar
WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
Are you losing any coolant over time?
Jan 8, 2011 at 1:58 PM
Avatar
JJC28
  • MEMBER
  • 2 POSTS
The water pump is in working order the van overheats almost right away a half mile or so. The van wasn't overheating prior to heater core replacement. radiator forcing fluids into overflow...Thanks for the help.
Jan 9, 2011 at 5:50 PM
Avatar
WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
That likely means that you overheated severely earlier and now have a blow head gasket. Just make sure the thermostat isn't stuck or in backwards and you got all the air out of the system.
Jan 9, 2011 at 5:56 PM