Water pump

Asked by May 11, 2014 at 12:48 PM about the 1996 Chevrolet Tahoe 4 Dr LT 4WD SUV

Question type: Maintenance & Repair

I changed a new water pump and when I start the engine the temperature is going up
immedietaley so what shall I do???

7 Answers

104,045

Turn the to on, do not start. Does the temp gauge start going up without the engine running?

115,835

Also if the wire to the temp sensor just happened to come loose and is touching metal your gauge will do this. But if when you turn key on it goes all the way to hot then drops back to cold and then gradually climbs back to hot it's not a wire issue. Check your work. Make sure that you got all the air out of the system. An air pocket will cause it to do this also.

195

Sounds like a thermostat is stuck shut when u crank the truck watch the temp gauge it should move to the hot position then the needle should go back to normal if it doesn't work u need a coolant temperature switch forthe gauge u may want to check the coolant sensor by the thermostat housing that is the one for computer and signals when the thermostat opens take the thermostat out put it back together then run it to c if it overheats

115,835

To check a therm remove it from vehicle. Place it and a cooking thermometer in a pot of water and turn burner to high. According to what temp therm you have (175-185-195) you should see it start to open when water reaches this temp. It should completely open. Then use pliers to remove it and place it under cold water. It should completely close. (Call your local auto parts to see about what temp therm should be in your vehicle) If it operates normal re install it. If it does not replace it.

No no but when I fill water on the radiator it has bubbles and it became full after a while it going down.

115,835

Ok sounds like air pockets. Open radiator cap and let it idle for a bit while adding water as it goes down. Not sure about your model but some have air bleeder valves in the cooling system that you open while filling it with coolant. And when coolant comes out the valve you close it and all the air is out. But after all this and you think that all the air is out but it's still bubbling I would check for blown head gasket. Get test kit to test coolant for exhaust gases. Check oil. Does it look like a milkshake? If either answer is yes then head gasket blown. Can also pressure test the system. If system will not hold proper pressure then look for where coolant is going.

I changed the thermostat and it works, tnx all!!!

Your Answer

Tahoe

Looking for a Used Tahoe in your area?

CarGurus has 42,028 nationwide Tahoe listings starting at $1,980.

ZIP:

Chevrolet Tahoe Experts

  • #1
    Tom Demyan
    Reputation
    870
  • #2
    Rowefast
    Reputation
    850
  • #3
    John Carson
    Reputation
    590
View All

Related Models For Sale

Used GMC Yukon
580 Great Deals out of 22,417 listings starting at $1,995
Used Chevrolet Suburban
437 Great Deals out of 23,771 listings starting at $1,799
Used Ford Expedition
341 Great Deals out of 17,103 listings starting at $1,930
Used Ford F-150
2,779 Great Deals out of 211,590 listings starting at $1,400
Used Ford Explorer
1,095 Great Deals out of 70,547 listings starting at $1,000
Used Jeep Grand Cherokee
972 Great Deals out of 72,137 listings starting at $1,200
Used Toyota 4Runner
296 Great Deals out of 25,142 listings starting at $1,750
Used GMC Sierra 1500
1,141 Great Deals out of 65,446 listings starting at $1,995

Used Cars For Sale

2017 Chevrolet Tahoe For Sale
137 Great Deals out of 13,762 listings starting at $34,999
2016 Chevrolet Tahoe For Sale
49 Great Deals out of 1,865 listings starting at $31,643
2015 Chevrolet Tahoe For Sale
142 Great Deals out of 3,945 listings starting at $24,225
2014 Chevrolet Tahoe For Sale
38 Great Deals out of 742 listings starting at $12,900
2013 Chevrolet Tahoe For Sale
73 Great Deals out of 1,601 listings starting at $10,900

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.