what causes my 96 lumina to get hot while sitting still?

30

Asked by Dec 10, 2014 at 04:09 PM about the 1996 Chevrolet Lumina

Question type: Maintenance & Repair

I changed the thermostat, flushed the radiator, put new coolant in it.. The car seems to do ok while in motion, but when sitting still for a period of time it gets warm..How could I determine if the water pump is bad?

15 Answers

8,135

is your rad cap or expantion tank cap loose

30

no

8,135

take the belt off of the water pump and try to turn it with your hand if it is easy its bad if iit is hard it is good

1 of 1 people found this helpful.
30

im goin to do that now.

8,650

cooling fans and fan speeds are happening right? They can set codes on many years but fans can slow down due to dirt and moisture entry. I have sped them up or got them working with contact cleaner followed by wd 40. What's that noise ? whirrrr !

1 of 1 people found this helpful.
5,575

I expect the car to run warm when it just sits there. The radiator sits behind the open grill to let the air help cool it when the vehicle is moving. I think everyone is overthinking this a bit.

15

if its ok when moving circulation is ok. when stopped it's the fan that keeps it cool therefore it will be the elec fan not running. put power to the pos contact if fan works its the temp sensor switch, if it doesn't the fan is kaput

1 of 1 people found this helpful.
30

So the pump spun supper easy.. how sure r u that its bad

30

so this vehicle has 2 fans side by side, however I noticed only one kicking on for a very short period.

3 of 3 people found this helpful.
8,135

if only one is coming on you will not have enough Freon if you want to find out if you pump is bad take it of and see

8,650

A vehicles electronic cooling fan system cycles the engine cooling fan based on the cooling fan temp switch. The computer for this can increase the speed of the fan and set trouble codes. Every engine that has to sit still in traffic must run its fan every time the t-stat opens and the temp has reached op temp. The speeds increase as needs increase, additional fans are in play with A/c etc. That would mean you had one for a/c and one for engine cooling. The a/c fan has to run because hi side pressure rises immediately, and would burst without cooling fan and fail safe switches are supposed to stop compressor clutch operation. So, if you have the a/c not in a mode that uses compressor, the other fan would be expected to cycle as if the vehicle had no A/c.

8,650

If your system is filled and burped, and your cooling fan runs, but your system is going to get too hot, the fan speed control driver is designed to raise the fan speed. If your fan labors due to dirt in its electric motor, it will not raise. I would clean it, if I suspected that. Other concerns with multi speed fans can require the need of the service codes being read to continue the diagnosis. Then take the code to enginecodes.com for definitions, possible causes, etc.

12,120

it wouldn't hurt to check the relays for both cooling fans.

1 of 1 people found this helpful.
8,650

But is there a service code stored in the memory? and what are you checking the relays for? sure, if one was sticky, it can fail to operate to boost the speed, but these things may direct the reader to the proper pinpoint test. Guess testing a sticky one could mean you reproduce conditions and tap on it. or swap relays. or verify wires have what they are supposed to with a schematic. That's how the pinpont test is supposed to simplify not only which has what, but when and where. The test would eliminate confusion. Identifying relays is important, then like parts can be interchanged

turn on defrost position when it starts to over-heat and turn fan to low anyway to kick fan on.if it starts to stabalize then you have fan bad or relay bad or temp. control sensor bad or dirty or a short

Your Answer

Lumina

Looking for a Used Lumina in your area?

CarGurus has 161 nationwide Lumina listings and the tools to find you a great deal.

ZIP:

Chevrolet Lumina Experts

  • #1
    90V6RedHotLuminaEuro
    Reputation
    1,180
  • #2
    John Saffrahn
    Reputation
    1,090
  • #3
    11jonny11
    Reputation
    930
View All

Related Models For Sale

Used Chevrolet Impala
536 Great Deals out of 35,326 listings starting at $900
Used Chevrolet Malibu
982 Great Deals out of 65,992 listings starting at $1,000
Used Chevrolet Monte Carlo
4 Great Deals out of 1,280 listings starting at $1,488
Used Toyota Camry
931 Great Deals out of 81,453 listings starting at $1,395
Used Chevrolet Camaro
442 Great Deals out of 30,816 listings starting at $2,495
Used Ford Taurus
191 Great Deals out of 15,897 listings starting at $1,850
Used Chevrolet Tahoe
736 Great Deals out of 41,543 listings starting at $1,995
Used Chevrolet Caprice
198 listings starting at $9,995
Used Honda Accord
1,043 Great Deals out of 58,767 listings starting at $1,099
Used Jeep Grand Cherokee
849 Great Deals out of 70,704 listings starting at $700
Used Ford Mustang
612 Great Deals out of 36,332 listings starting at $899

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.