Recent content by mrwhipper

  1. M

    4.2L running hot under load

    I do still have the OEM thermostat and was thinking about doing this but there are two problems…. 1. It sucks pulling the thermostat out of it…. 2. The weather is changing and I am not having any issues now.
  2. M

    4.2L running hot under load

    Thank you. I have not left a review yet but I have returned the rad. I wanted to get my money refunded before I left a review.
  3. M

    4.2L running hot under load

    No, I sent I back. I figured if they cannot get that basic stuff right how bad is the rest.
  4. M

    4.2L running hot under load

    OK... So.... That radiator was a piece of doo doo..... Somebody was sleeping while trying to put it together. Brackets that are supposed to hold the bottom of the condenser were welded on 90 degrees inward on both sides, the bracket that is supposed to hold the center upper shroud was...
  5. M

    4.2L running hot under load

    Hello again. An update with the fan clutch. I followed the video from the provided link using a rag testing the clutch. I did it cold and other then feeling a small timed grab it was free. I then got it to temp and checked it again with the air on and it definitely had more grab. So I feel...
  6. M

    4.2L running hot under load

    I have noticed after continuing my research that is situation in not the norm but there a people out there with the same or similar issue. I have seen more than one comment about putting in a full aluminum dual core radiator with electric fans and it solved the problem. What do you all think...
  7. M

    4.2L running hot under load

    Gotcha. I know I can sit at a red light in 90F ambient with the air on and the water temp will not go above 201. When the light turns green I can hear the fan a bit then when I get the RPM up the fan will release. (It is not a full engagement sound like a bus but you can hear it)
  8. M

    4.2L running hot under load

    Thank you! I do know the fan is working but I have not had a chance to monitor it using a scan tool though. I am taking a long trip tomorrow so I may plug the scanner in during the trip.
  9. M

    4.2L running hot under load

    More great questions! Thank you for the time you are spending with me! My 2004 Envoy was not an EXT, it had the same 4.2L and drive line as the 2003 Trailblazer. We are the second owner of the Trailblazer. It was maintained VERY well by the first owner. We got it at 70,000 miles. I am a...
  10. M

    4.2L running hot under load

    Great questions. Let's start with that this is south central PA, so not talking about mountains. Lets do this in order 1. Towing up a hill at 55ish at 2700 RPM with 85F ish ambient temp reaching water temps past 225F towing around 4000lbs. NO AC on. 2. Climbing up a hill 50ish, 2200 rpm with...
  11. M

    4.2L running hot under load

    I would like to add one thing. This maybe nothing but It seems when the trans is out of lockup the temps can creep up.
  12. M

    4.2L running hot under load

    Thank you for the time you spent with the pics!!!! Well I definitely pulled the OEM thermostat out. The Stant is the one that has the rubber around the plunger and looks very different then the OEM one I pulled out. One less thing it can be. I did have all the hoses off when I did all the...
  13. M

    4.2L running hot under load

    I agree with the temp during towing. I use to have an Envoy with the same 4.2 and it never went above 200.
  14. M

    4.2L running hot under load

    Thank you. What are you thinking with the very warm temps of 225+ for towing?
  15. M

    4.2L running hot under load

    Hello. I have read all the threads related to my problem here and on another forum but I am still stumped with my 2003 Trailblazer 4.2L. At idle and normal cruse with air on engine temps are fine but when I climb a hill or tow the coolant temps will creep up. They have got to 210F not towing...

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