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

100,495

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

114,275

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.

185

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

114,275

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.

114,275

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 39,526 nationwide Tahoe listings starting at $1,000.

ZIP:

Chevrolet Tahoe Experts

  • #1
    Tom Demyan
    Reputation
    850
  • #2
    Rowefast
    Reputation
    830
  • #3
    Lucia Taylor
    Reputation
    560
View All

Related Models For Sale

Used GMC Yukon
412 Great Deals out of 21,450 listings starting at $1,495
Used Chevrolet Suburban
343 Great Deals out of 21,875 listings starting at $1,999
Used Ford Expedition
367 Great Deals out of 19,291 listings starting at $1,295
Used Ford Explorer
837 Great Deals out of 63,767 listings starting at $1,000
Used Ford F-150
2,285 Great Deals out of 184,007 listings starting at $699
Used Jeep Grand Cherokee
887 Great Deals out of 70,548 listings starting at $950
Used Toyota 4Runner
284 Great Deals out of 21,817 listings starting at $1,750
Used GMC Sierra 1500
855 Great Deals out of 65,197 listings starting at $2,495

Used Cars For Sale

2017 Chevrolet Tahoe For Sale
116 Great Deals out of 19,435 listings starting at $37,999
2016 Chevrolet Tahoe For Sale
43 Great Deals out of 1,776 listings starting at $31,643
2015 Chevrolet Tahoe For Sale
72 Great Deals out of 3,243 listings starting at $24,225
2014 Chevrolet Tahoe For Sale
22 Great Deals out of 672 listings starting at $11,595
2013 Chevrolet Tahoe For Sale
37 Great Deals out of 1,456 listings starting at $6,495

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.