Question about 2002 Chevrolet Tahoe

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2002 Chev Tahoe (4.8 V8eng.) dealership saids my meticulously maintained tahoe may need a radiator hose replacing, based on the current mileage of 73k. On the estimate it's listed as "heater/radiator hose" replacement. apprx $600..?? Tahoe still runds/feels like new. Any ideas, insight? Is this something I can crawl under and sqeeze to check the brittleness of the hoses? Are they accessible? Anyone know of a website that would show a diagram of the 2002 radiator hose connection? Thanks....

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Hello. It is possible that your hose may need that but on the other hand many vehicles that are ten years old are still running on the original hoses. Joe

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Posted on Oct 03, 2010

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Good god if i charged 600 bucks to replace a hose on a car i would be rich and hell ya you can check them and replace them your self. at the bottom of the radiator there is a drain valve you will have to look for it but its there once you find it put a bucket under it and open it let it drain and then use a screw driver or plyers depending on the clamp and unloosen them now grab hold the hose and give her the onion cause she aint gonna come right off now once you put the knew hose on and tighten it up do the same with the top now once the top is done pour in gallon antifrezze and a gallon of water your colling system runs off 50/50mix water and antifreeze or you can just buy pre mixed witch is easyer for most people put your radiator cap back on start that beast up and check for leaks.

Posted on Oct 03, 2010

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1 Answer

Where is the thermostat mounted?


    • 1. Locate the thermostat housing by following the radiator hose from the radiator to the engine block. The metal cover that the hose attaches to is the Tahoe's thermostat housing.

    • 2

      Remove the radiator hose retention clip by manually squeezing the clip tabs together. With the tabs together, pull the hose off the thermostat housing. Drain the fluid from the hose by holding the hose in the air. The fluid will drain back into the radiator.

    • 3

      Remove the thermostat housing by taking off the two bolts with a boxed wrench. Lift the hosing off the engine to expose the thermostat.

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      Place the thermostat housing on top of the thermostat gasket and bolt it into place.

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      Squeeze the radiator hose retention clip tabs together and slide the hose back onto the thermostat housing. Let go of the tabs to secure the hose into place.

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When your driving down the road what does your temp gauge read? If it is in the normal place, about the middle, than the thermostat is working. The next thing to check is the coolant level. Make sure the overflow and the radiator are full. If the radiator gets low enough the first thing to stop working is the heat. If both of those are full than feel the hoses going to the heater core. They should both feel hot with the engine fully warmed up. If one is cold and one is hot than the heater core is plugged. Back flushing the heater may bring it back to life. Check those out first. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

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1 Answer

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1 Answer

Chevy Tahoe 2002 radiator


I would say at 180k miles, and with the heater core bad, it's time to test the radiator.

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The dealership is trying to get out pf paying for the problem. I'm not going to say this is a common problem but it does seem to happen a lot. The axle seals leak quite frequently also the pinion seal leaks.There might be also be a problem with the vent, the hose could have came loose or hole in it. There is also an oring seal around the filler hole that may not have been installed properly.

If the dealership fails to help you call the GM customer assistance center and lodge a complaint. Chevrolet Customer Assistance Center 1-800-222-1020

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