When did your plastic intake fail? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 07-13-2005, 05:14 AM   #1
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Default When did your plastic intake fail?

Mine at about 80,000 miles
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Old 07-13-2005, 07:10 AM   #2
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the 2001bonne failed at 40k
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Old 07-13-2005, 08:29 AM   #3
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Mine still hasn't, but the gaskets have, both upper and lower, about 105k or so.
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Old 07-13-2005, 09:00 AM   #4
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Don't hate me....but I am glad I don't have that possibility looming over my head.
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Old 07-13-2005, 09:38 AM   #5
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Never, I have a super duper prototype intake in mine that will make someone lose a bet
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Old 07-13-2005, 09:39 AM   #6
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on my PA it did at 205,XXX
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Old 07-13-2005, 10:31 AM   #7
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57000 miles on my black 97 SSE just aftere my exteneded warranty expired on the mileage.
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Old 07-13-2005, 12:15 PM   #8
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Mine is metal but imine failed 155,000
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Old 07-13-2005, 12:32 PM   #9
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Mine failed last November. Don't remember the exact milage, but it was right around 100K. BUT, it failed once before that, judging by the markings on the intake that failed.

NOTE- According to the owner of the shop that replaced my blown engine in May, the engine blowing could have been due to the upper intake going six months earlier. His theory was that they did not drain the engine soon enough, and the coolant that got into it had basically cuased the engine to "eat itself" for six months before blowing up. He based this on the fact that it blew parts out the front and the back (multiple cylinder failure)

The point of the story is - GET THAT CONTAMINTED OIL OUT OF THERE!! Not soon, but immediately upon discovering your UIM has failed...
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Old 07-13-2005, 12:54 PM   #10
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Quote:
Originally Posted by MOS95B
Mine failed last November. Don't remember the exact milage, but it was right around 100K. BUT, it failed once before that, judging by the markings on the intake that failed.

NOTE- According to the owner of the shop that replaced my blown engine in May, the engine blowing could have been due to the upper intake going six months earlier. His theory was that they did not drain the engine soon enough, and the coolant that got into it had basically cuased the engine to "eat itself" for six months before blowing up. He based this on the fact that it blew parts out the front and the back (multiple cylinder failure)

The point of the story is - GET THAT CONTAMINTED OIL OUT OF THERE!! Not soon, but immediately upon discovering your UIM has failed...
Amen to that - it can't be overstated. Dexcool will rip apart bearings...
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