Radiator sprung a leak - The 1947 - Present Chevrolet & GMC Truck Message Board Network

65chevysub · 08-25-2015, 07:59 PM

Hello everybody. Got an 04 Blazer with the 4.3 and the radiator sprung a leak last week. Tried fixing it with JB Weld but didnt work. My question is how hard is it to remove the old one and replace with a new one? I will get a new one from Autozone for $130. I read in my Chiltons manual that the PCM has to be removed to get the overflow tank out as it needs a good cleaning. Any help is appreciated.
Thanks

65chevysub · 08-27-2015, 06:20 PM

Quote:

Originally Posted by 65chevysub

Hello everybody. Got an 04 Blazer with the 4.3 and the radiator sprung a leak last week. Tried fixing it with JB Weld but didnt work. My question is how hard is it to remove the old one and replace with a new one? I will get a new one from Autozone for $130. I read in my Chiltons manual that the PCM has to be removed to get the overflow tank out as it needs a good cleaning. Any help is appreciated.
Thanks

Did the radiator today. Simple as pie. Took maybe an hour.
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08-25-2015, 07:59 PM	#1
65chevysub Registered User Join Date: Feb 2013 Location: Cottonwood, Arizona Posts: 1,388	Radiator sprung a leak Hello everybody. Got an 04 Blazer with the 4.3 and the radiator sprung a leak last week. Tried fixing it with JB Weld but didnt work. My question is how hard is it to remove the old one and replace with a new one? I will get a new one from Autozone for $130. I read in my Chiltons manual that the PCM has to be removed to get the overflow tank out as it needs a good cleaning. Any help is appreciated. Thanks

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