1994 Oldsmobile Cutlass Engine Overheating

Tiny
DINGER01
  • MEMBER
  • 1994 OLDSMOBILE CUTLASS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 245,000 MILES
My 1994 Oldsmobile Cutlass Supreme, milage 245,000 is overheating. I have replaced the radiator, water pump, thermostat, hoses, serpentine belt, and a second time the thermostat. This all started with my temperature guage fluctuating significantly until the vehicle warmed sufficiently, then the guage would normalize. While the guage fluctuated the heater inside the cab wouldn't work when the temperature was hotter than normal. This last time, after replacing the thermostat a second time, the guage remained in the red zone on the temperature guage. Both upper and lower hoses were hot and highly pressurized, yet the car was overheating, and no heat was coming out of the heater inside the cab.
It is almost as if the thermostat is closed. Besides driving the car into a pond (the thought has crossed my mind), what can I do?
Note: Earlier today I sent in a credit card payment of $10 to be applied to this question (transaction ID: 2222471542), thank you!
Do you
have the same problem?
Yes
No
Tuesday, December 16th, 2008 AT 9:33 AM

3 Replies

Tiny
RASMATAZ
  • MEMBER
The radiator is it boiling over ? When you replaced all that good stuffs -did you bleed out the cooling system could be air in it.

Find the coolant temperature sensor-its located on rear of engine The thermostat influence the operation of the CTS.

If it continues to overheat-Have it block and pressure tested

CTS Resistances


http://www.2carpros.com/forum/automotive_pictures/12900_CTS_values_3.jpg

Was this
answer
helpful?
Yes
No
Tuesday, December 16th, 2008 AT 12:08 PM
Tiny
DINGER01
  • MEMBER
Yes, the radiator was bubbling into the overflow tank significantly. Also, I did bleed it out, both through the top of the radiator, also through the bleed valve located near the top hose housing. One question though, is it normal for antifreeze to come out of the radiator through the top opening while I am bleeding it. This happened numerous times during the bleeding process.

Will the CTS failure cause the engine to overheat?

UPDATED 1-5-08
Where is the fuel pump test port on the 98 safari?
Was this
answer
helpful?
Yes
No
Tuesday, December 16th, 2008 AT 12:16 PM
Tiny
RASMATAZ
  • MEMBER
The CTS tells the temperature of the engine on the gauge and also it is use to increase injection pulses during cold starts, and to tell the computer when to energize the fan relay so that the fan will come On time.

Get it block tested it will tell if its combustion gases leaking into the cooling system and causing it to spew out
Was this
answer
helpful?
Yes
No
Tuesday, December 16th, 2008 AT 12:24 PM

Please login or register to post a reply.

Recommended Guides