Running hot

Asked by Apr 19, 2016 at 10:14 AM about the 1972 Oldsmobile Cutlass Supreme

Question type: Maintenance & Repair

I have a 72 cutlass olds 350 just got the motor
rebuilt and its running hot checked raditor
,thermostat  heater core clucth fan need help

6 Answers

73,175

When filling the cooling system, did you bleed out the air pockets?

2 of 2 people found this helpful.

Im not sure they did all that at the shop but i will work on it now

73,175

Set the motor up while you can, make sure the carb is adjusted, and the timing is set.

1 of 1 people found this helpful.
4,195

Make sure the cooling system is actually full. Air pockets are unlikely on an old V8, but it could happen. Be sure your fan is bolted on the right way. Some fan blades can be reversed accidentally so they are blowing instead of sucking air in through the rad. (I speak from experience) How hot is it running? Some new engines run a little hot while they're new, but it its running way into the red on the gauge then that's a problem. Try running it without a thermostat. It's not like newer cars that have to have them to keep the electronics working properly. Don't leave it out indefinitely, but you can take it out to keep it running cooler while you tune and adjust it and it will also perhaps eliminate the thermostat as the source of the problem.

I have changed the radiator,water pump,thermostat,head gaskets. And it still keep running hot. What should I do next

73,175

Purge the cooling system from air pockets. Watch this video on how too... www.youtube.com/watch?v=zUpXgAJ1gjU

2 of 2 people found this helpful.

Your Answer

Cutlass Supreme

Looking for a Used Cutlass Supreme in your area?

CarGurus has 99 nationwide Cutlass Supreme listings starting at $3,000.

ZIP:

Oldsmobile Cutlass Supreme Experts

  • #1
    munron
    Reputation
    660
  • #2
    tennisshoes
    Reputation
    410
  • #3
    Tom Demyan
    Reputation
    340
View All

Related Models For Sale

Used Chevrolet Monte Carlo
13 Great Deals out of 1,364 listings starting at $995
Used Buick Regal
162 Great Deals out of 9,800 listings starting at $999
Used Chevrolet Camaro
439 Great Deals out of 31,768 listings starting at $2,395
Used Chevrolet Impala
576 Great Deals out of 34,604 listings starting at $1,250
Used Ford Mustang
762 Great Deals out of 41,905 listings starting at $1,300
Used Chevrolet Caprice
185 listings starting at $34,100
Used Dodge Charger
438 Great Deals out of 27,738 listings starting at $1,650
Used Dodge Challenger
277 Great Deals out of 21,400 listings starting at $6,999
Used Cadillac Eldorado
372 listings starting at $2,300
Used Pontiac Grand Prix
37 Great Deals out of 2,746 listings starting at $1,200
Used Pontiac Firebird
14 Great Deals out of 813 listings starting at $1,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.