overheating

  1. C

    2004 Tahoe Overheating

    My son's 2004 Tahoe LT (5.3 flex fuel) with about 320k miles has been running hot for some time - maybe 240 degrees or more in Houston traffic (its been 100 deg F + for a month now). Towing our boat is really a problem. A couple of years ago, our mechanic found the fan clutch was bad and we...
  2. J

    WTH is this weird, plastic thimble in Radiator Reservoir Hose?!

    I've had some issues with random overheating in my 2000 Tahoe. You can see the troubleshooting below, but it seems pretty clear, that the coolant is being blocked. I've flushed the radiator multiple time, and I'm still getting rusty, coolant water, with little, tiny brown bits coming out of...
  3. M

    Please help!!

    Long time lurker and first time poster. Registered for an account tonight since I couldn't find an answer that I haven't already tried. Backstore: 2006 Tahoe Z71 with 5.3 flex fuel 232,*** miles I just did head gaskets, water pump, thermostat, every gasket that I could think of while in the...
  4. Damuskoopthagreat

    2001 suburban saying its overheating but it's not

    I got a 01 5.3 suburban 2wd that has no cats. In the message center I continue the get a messege of check coolant temperature/engine overheating. The temp gauge will bounce back and forth but the engine isn't hot nor the coolant. When this happens it runs horrible, no power, no speed and...
  5. ZGHOE05

    Cooling system woes

    250,000 mile 05 z71 with an overheating problem. Started as a leaky fitting to the heater core so I dumped in the fix leak because I was lazy problem solved, so I thought a year went by no problems . Fast forward to a month a go and truck is getting warm in traffic (less than 15 mph)but never...

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