Cooling temp and oil,transmission

Asked by Joe May 22, 2023 at 07:52 PM about the 1999 Chevrolet Corvette Coupe RWD

Question type: General

1999 corvette
glass top coupe.
New radiator and
fans run but it
started running at
220/225 degrees
coolant. Oil
218/220.
Transmission
218/220. Should I
be worried?

4 Answers

310,575

Yes. Way too hot for your year of vehicle. You have a definite cooling problem, make absolutely sure you don’t have an air pocket in the cooling system. Some things to check, radiator too small or not built right, cooling fans running the wrong direction, air flow problem through the radiator. Some suggestions, install a separate transmission oil cooler unit, totally bypassing the radiator, same with the engine oil, switch to a air cooled unit.

157,855

Does it heat up when you're driving or when you're idling. If driving it's a coolant circulation problem such as a bad water pump or possibly a stuck closed thermostat. If it's when you're idling it's an airflow problem. Air conditioning condenser clogged with dirt, leaves, etc. Missing fan shroud or air baffles. Electric or clutch fan not working properly. A worn timing chain can make your engine run hot as can a knock sensor problem. If the engine has a valve tap the knock sensor can pick it up and the ignition timing will be severely retarded. This will cause the engine to run hot as well as lack power and possibly cause the transmission to shift late too. Hope that helps! Jim

Your Answer:

Corvette

Looking for a Used Corvette in your area?

CarGurus has 1,084 nationwide Corvette listings starting at $15,000.

Postal Code:

CarGurus Experts

  • #1
    John Carson
    Reputation
    5,270
  • #2
    Vincent Parker
    Reputation
    4,750
  • #3
    dandyoun
    Reputation
    1,420
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Camaro
14 Great Deals out of 282 listings starting at $5,995
Used Ford Mustang
60 Great Deals out of 1,365 listings starting at $4,995
Used Porsche 911
28 Great Deals out of 481 listings starting at $21,888
Used BMW M3
93 listings starting at $15,995
Used Ford F-150
320 Great Deals out of 13,991 listings starting at $1,712
Used Chevrolet Silverado 1500
222 Great Deals out of 5,872 listings starting at $2,975
Used BMW 3 Series
64 Great Deals out of 1,232 listings starting at $2,500
Used Toyota Supra
74 listings starting at $49,777
Used Mercedes-Benz S-Class
11 Great Deals out of 261 listings starting at $9,988

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. Content will be removed if CarGurus becomes aware that it violates our policies.