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1999 Olds 88 3.8 heater hoses

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Old Jul 7, 2022 | 10:29 AM
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Question 1999 Olds 88 3.8 heater hoses

I was checking things out under the hood of my car, and was looking at the heater hoses. I noted that they went from the engine, and went in behind the RH strut tower. Curious as where access to the hose clamps at the heater core end are, in the event I needed to replace the hoses. The clamps on the engine side, are easy to get to.

I did search Google, but as usual I get everything but what I am actually searching for.
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Old Jul 7, 2022 | 01:12 PM
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Are you having a problem?
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Old Jul 7, 2022 | 03:46 PM
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Originally Posted by carfixer007
Are you having a problem?
No, but would like to know how to access the heater core end of the hoses IF I ever had to replace them. As of now they look to be in decent shape, and I can barely make out GM part numbers on them.
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Old Jul 7, 2022 | 04:11 PM
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So no problems. That'* good. I have the factory service literature for that. Seems to me they just went right around and into the box. I think you need to pull the box.
I'll look it up.
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Old Jul 8, 2022 | 12:18 AM
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Originally Posted by carfixer007
So no problems. That'* good. I have the factory service literature for that. Seems to me they just went right around and into the box. I think you need to pull the box.
I'll look it up.
Ok thanks. All I could see was where they went in behind the strut tower
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Old Jul 8, 2022 | 01:23 PM
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Well Mitchell don't have the procedure for the heater core.At least I didn't find it. The box I believe can be removed from under the hood. Look for little screws around the housing.
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Old Jul 10, 2022 | 11:59 PM
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You need remote hose clamp pliers like this:



No other way to do this that I know of. Once they're off I guess you could replace with screw-type clamps, but that would be a pain too. When I did hoses on my 1997 LeSabre (same platform/engine/hoses/Maxifuse box as your 1999 8 this worked like a dream . . . especially after trying all kinds of contortions to get to them. I just put the same factory spring clamps back on everything when I was done. That was ~95,000 miles ago. It has ~251,000 on it now.
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Old Jul 11, 2022 | 07:21 PM
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GM and their special tools....
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Old Jul 11, 2022 | 08:49 PM
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These you can get outside of GM, but yeah I know what you mean; GM special tool part number 4894837489209 or something.
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Old Jul 12, 2022 | 06:41 PM
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Originally Posted by CathedralCub
These you can get outside of GM, but yeah I know what you mean; GM special tool part number 4894837489209 or something.
Yeah "Use GM tool 123456789987654321.6" or equivalent
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