Replacing heater hoses on 2004 Lesabre - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 10-27-2014, 08:41 PM   #1
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Default Replacing heater hoses on 2004 Lesabre

Hi, I have an 04 Lesabre that is on it'* original coolant. Needs new coolant and hoses. The heater hoses look impossible to get at where they connect to the firewall. How will I get to those?

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Old 10-28-2014, 01:43 AM   #2
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I did the hoses on my neighbors Lesabre a few months ago. It wasn't too bad, I used a razor blade to slice the hose long ways after I got the spring clamps out of the way. By cutting the hoses it won't take too much pressure to pull them away from the heater core so you don't damage it.
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Old 10-28-2014, 08:46 AM   #3
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its a good idea to replace those with regular clamps, they only work till you disturb them once
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Old 10-28-2014, 02:44 PM   #4
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Quote:
Originally Posted by 75 racer View Post
I did the hoses on my neighbors Lesabre a few months ago. It wasn't too bad, I used a razor blade to slice the hose long ways after I got the spring clamps out of the way. By cutting the hoses it won't take too much pressure to pull them away from the heater core so you don't damage it.
Did you stick your arm in there from the front to get to the clamps at the firewall? It seemed near impossible to get at those. Does it take a special tool.?
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Old 10-28-2014, 02:56 PM   #5
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There is a tool. The shop that did my heater core said they had to buy it to get to mine.
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Old 10-28-2014, 02:58 PM   #6
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And there may be a way to get at them without the tool, but I suspect it would be a big fight in a small space.
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Old 10-28-2014, 06:34 PM   #7
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I do have that tool but it was at work so I used a pair of pliers. I stood on the passenger side and kind of layed a cross the engine bay and snuck my arm in there. I do know you need to take one off before the other.
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Old 10-28-2014, 10:27 PM   #8
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Those hose clamp pliers are a must have!
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