98 3800 ser. 2 heater water inlet pipe - GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat


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Old 04-13-2018, 08:07 PM   #1  
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Default 98 3800 ser. 2 heater water inlet pipe

My wife called and said the Bonnie was overheating. I started refilling the radiator, and soon found a major leak. I found the part on the intake diagram on a post here. Part #31, 'heater water inlet pipe'. Autozone gave me a generic part that looks pretty close. Seems to me I'll need to pull the alternator, and the housing above the water pump, that the pipe connects to. Just a hard plastic 90 degree elbow. Figured I'd ask the experts if there'* anything unusual to look out for!
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Old 04-14-2018, 06:20 AM   #2  
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Ya the plastic elbows crack & the better replacements are metal..
Recent other post w/good info & Post 3 & 11 has pics and Dorman part #..
https://www.gmforum.com/buick-172/03...t-leak-311734/
Hope this helps!
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Old 04-14-2018, 09:04 AM   #3  
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Thanks SR, that does help!
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