UIM Removal with pics and a question or two - Page 2 - 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 10-31-2005, 11:57 AM   #11
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Umm, uh...Nick. UIM went out today. Sorry, I'm in the middle of a heated re-election battle.

Best, Bob.

P.*. I used plain water with a radiator sealer (the aluminum stuff) in the engine for the first day or two when I installed mine, and then drained it and filled it with coolant. That'* an abundance of caution, but reasonable, I think.
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Old 10-31-2005, 01:26 PM   #12
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yours looks much better than mine did....i actually had some sort of dex-cool-like substance that had caked up in various parts...especially the LIM..it had to break it loose with a screwdriver and then clean it up real good...i dont know where it came from, and i shouldve taken pictures because ive never seen anything like it. but it was NASTY
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Old 10-31-2005, 01:39 PM   #13
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Quote:
Originally Posted by LittleHoov
yours looks much better than mine did....i actually had some sort of dex-cool-like substance that had caked up in various parts...especially the LIM..it had to break it loose with a screwdriver and then clean it up real good...i dont know where it came from, and i shouldve taken pictures because ive never seen anything like it. but it was NASTY
i'm sure I will have that, I'll get pictures over thanksgiving when I do my lowers.
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Old 11-01-2005, 09:18 AM   #14
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Quote:
Originally Posted by Bob Dillon
Umm, uh...Nick. UIM went out today. Sorry, I'm in the middle of a heated re-election battle.

I will let you know when it arrives, how did you send it, USPS, UPS or FedX
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Old 11-01-2005, 10:22 AM   #15
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Nick, it went out USPS priority mail.
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Old 11-01-2005, 01:19 PM   #16
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Quote:
Originally Posted by corvettecrazy
Quote:
Originally Posted by LittleHoov
yours looks much better than mine did....i actually had some sort of dex-cool-like substance that had caked up in various parts...especially the LIM..it had to break it loose with a screwdriver and then clean it up real good...i dont know where it came from, and i shouldve taken pictures because ive never seen anything like it. but it was NASTY
i'm sure I will have that, I'll get pictures over thanksgiving when I do my lowers.
it looks like nick had some as well, look at the 4th port over from the left in the first pic he has, then in the second, nasssssty
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Old 11-01-2005, 02:02 PM   #17
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Quote:
Originally Posted by LittleHoov
Quote:
Originally Posted by corvettecrazy
Quote:
Originally Posted by LittleHoov
yours looks much better than mine did....i actually had some sort of dex-cool-like substance that had caked up in various parts...especially the LIM..it had to break it loose with a screwdriver and then clean it up real good...i dont know where it came from, and i shouldve taken pictures because ive never seen anything like it. but it was NASTY
i'm sure I will have that, I'll get pictures over thanksgiving when I do my lowers.
it looks like nick had some as well, look at the 4th port over from the left in the first pic he has, then in the second, nasssssty
that is correct, it was like an oatmeal substance, that was not very thick and came out very easily. That is the water port that is blocked on the UIM, anyone know why that is blocked?
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Old 11-01-2005, 11:29 PM   #18
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"anyone know why that is blocked?"

did you (or a previous owner) by any chance use radiator sealer on the car? that'* what it looks like to me.
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Old 11-02-2005, 12:24 AM   #19
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Quote:
Originally Posted by Bob Dillon
"anyone know why that is blocked?"

did you (or a previous owner) by any chance use radiator sealer on the car? that'* what it looks like to me.
Original owner here and never used any sealer on the car, as I said before the UIM is blocked at this location on both sides. From your reply it sounds like it shouldn't be.
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Old 11-02-2005, 12:31 AM   #20
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"From your reply it sounds like it shouldn't be."

I'm stumped if it'* not radiator sealer. All my passages were clear. I suppose that could be a small oil leak into the coolant but you would have noticed when you changed the oil.

considering the climate you live in, it doesn't seem like it would be condensate, either.
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