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2002 Chevy S-10 Heater

Tiny
SHAGTREE
  • MEMBER
  • 2002 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 155,000 MILES
Previously replace WaterPump, Radiator, Thermostat,
Antifreeze.

The vehicle overheated and these items were replaced. We have not heat. The truck does not over heat, but water bubbles in the plastic overflow container on passengers side of vehicle.

There is no water leaking. Temperature gauge does not go above 185.

We can hear water running sounds in the dashboard, but no leaking.

Hope you can help?

Thanks
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Sunday, November 8th, 2009 AT 11:14 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
The water sound you hear is coolant entering the heater core. Usually that indicates that the coolant is low.

Make sure the system is full of coolant. Check near the thermostat housing for a bleeder. You may need to bleed the system to get rid of air that can cause the heater problems.

If you still get no heat, try this. With the engine running, hot, and the heater on high, feel both heater core hoses. Both should be hot.

Let me know what you find.

Joe
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Thursday, November 12th, 2009 AT 8:14 AM

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