car dies when it is over 90 degrees outside when we stop. what could be a problem

Asked by Aug 24, 2014 at 08:55 AM about the 1990 Pontiac Sunbird 2 Dr LE Convertible

Question type: Maintenance & Repair

hoping this is something that is not too expensive.  my daughter drives my 1990 Pontiac sunbird convertible.  it just started doing this when the heat went above 90 degrees.  is there any specific thing I can check?

4 Answers

38,625

Check for a vapor lock. Someplace where the fuel line is to close to a sorce of engine heat.

this is over my head, unless you can tell me exactly how to check this. I did check the coolant and it is pretty dirty looking. then my daughter told me she added coolant yesterday. She also reminded me that when she owned the vehicle before her boyfriend took out the thermostat because it was over heating, that was 3 years ago.

38,625

The radiator needs to be flushed or replaced. The thermostat having been removed dose not allow the coolant in the in the radiator to cool off enough. Here is a money savings hint. Google Advanced Auto Parts. Coupons. You'll save a money save a ton of money on parts.

6,405

May not be related failures. Taking the thermostat out is not a good idea but should not cause the car to stall. It will just cause the car to take longer to get to operating temp. When you say the car stals when you stop, do you mean it stalls when it should remain idling or it shuts off with the key but will not restart? Do you notice any other symptoms of overheating like low coolant or steam coming from hose connections or the radiator cap? If no other symptoms show, look for other causes that are not necessarily related to the air temp being over 90. If you still think it is related to temp, check the radiator fan operation and make sure the fan (or fans) are coming on when the engine gets hotl

Your Answer:

Sunbird

Looking for a Used Sunbird in your area?

CarGurus has 13 nationwide Sunbird listings and the tools to find you a great deal.

ZIP:

Pontiac Sunbird Experts

  • #1
    skindesign
    Reputation
    180
  • #2
    Tom Demyan
    Reputation
    130
  • #3
    bigant420
    Reputation
    90
View All

Related Models For Sale

Used Pontiac Firebird
5 Great Deals out of 686 listings starting at $3,995
Used Pontiac Grand Am
736 listings starting at $2,490
Used Pontiac Grand Prix
15 Great Deals out of 1,695 listings starting at $1,500
Used Chevrolet Corvette
81 Great Deals out of 15,209 listings starting at $4,499
Used Ford Mustang
303 Great Deals out of 40,193 listings starting at $1,312
Used Chevrolet Camaro
269 Great Deals out of 27,309 listings starting at $2,900
Used Pontiac Le Mans
14 listings
Used Pontiac Tempest
10 listings

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.