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Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Apr 2009 Posts: 88 Shop Shark | | Shop Shark Joined: Apr 2009 Posts: 88 | I have a problem with a 49 wrecker. I just got it running but now it runs hot. I first started it and it ran great for about 3 minutes then the temp gauge suddenly went from 180(Coldest) to 220(Hotest). I instantly shut it down and put a new thermostat and I am waiting on a new water pump. I tried it again with the new thermostat because the old one was corroded and it did it again and again I killed it ASAP. I want to know if it is the water pump or is it a head gasket. I know it could be either. There is no water in the oil like when a head gasket goes. I know someone out there has dealt with this and can lead me to a place to start. I cant decide whether to fight it or just put the 4 cylinder diesel in it that I have in the back and build a hot rod.
Thanks
Brad
Last edited by Ameritowruston; 05/17/2009 12:34 AM.
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