Please verify UIM Gasket Part
#1
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From: West Michigan
Please verify UIM Gasket Part
I just want to confirm, is the gasket for the UIM 89017554? On the GM parts website it'* called a Plenum gasket. I also found it on RockAuto as a set, MS95812. It appears this one comes with the Throttle Body gasket?
And also, after more looking on Rock Auto, they have the upper gasket separate, but they show a couple varieties. One is OEM and another is for the Dorman unit only. I had my UIM replaced over a year ago but I'm not certain which it is. Is there a way to determine what it was replaced with, or do I not need to worry about it?
And also, after more looking on Rock Auto, they have the upper gasket separate, but they show a couple varieties. One is OEM and another is for the Dorman unit only. I had my UIM replaced over a year ago but I'm not certain which it is. Is there a way to determine what it was replaced with, or do I not need to worry about it?
Last edited by Grimm; 08-05-2009 at 12:53 PM.
#3
it "should" be the same as the OEM part. However it is possible the gasket is slightly different as the plenums are sometimes different.
What type of issue are you having, a vacuum leak?
What type of issue are you having, a vacuum leak?
#4
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From: West Michigan
Well, long story short I'm kicking myself because the upper puked in January '08 in the mechanic'* parking lot when I was having brakes done (great timing there), but he insisted I didn't need to worry about the lower. I had changed out the DEX when I bought it three years ago, so I thought maybe I would be safe on the lower so I agreed. This winter we had a couple weeks of temps around 0-10 degrees and it lost a couple inches of coolant. The oil has appeared fine, and I just see a little pooling of coolant on the front top of the LIM, and a little wetness on the sides. I've kept an eye on it, and it'* lost an inch or so of coolant since then. It'* interesting because I can check it over a month or more and it doesn't lose anything, and then a couple weeks later it will be down a quarter inch.
So I'm planning to try and tear it down in the next few weeks and hopefully also do the valve cover gaskets and plugs/wires. First I have two shot rear shocks I need to tackle.
I'll take a look at the upper for markings, but something is telling me it was the Dorman, but I can't remember for sure.
So I'm planning to try and tear it down in the next few weeks and hopefully also do the valve cover gaskets and plugs/wires. First I have two shot rear shocks I need to tackle.
I'll take a look at the upper for markings, but something is telling me it was the Dorman, but I can't remember for sure.
Last edited by Grimm; 08-05-2009 at 02:02 PM.
#6
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From: West Michigan
OK cool! I haven't looked at the engine yet or delved into the process too much, but I assume I will still need to remove the UIM from the LIM when I tear it down?
What do you think I'm looking at for time to do the intake, valve covers and plugs/wires? Ten hours?
What do you think I'm looking at for time to do the intake, valve covers and plugs/wires? Ten hours?
#7
All depends on your skill and work ethic.
On an 96-99 you don't need to pull the accessory tensioner assembly or coil pack bracket. On the 2K plus you do pull the tensioner assemby. This adds a few minutes.
I can zip this out in 2 hours, with air tools for disassembly and a die grinder with gasket cleaning 3m pad on it. Takes all of the torture out of the job.
Give yourself 10 hours and you will probably finish in 5 hours.
On an 96-99 you don't need to pull the accessory tensioner assembly or coil pack bracket. On the 2K plus you do pull the tensioner assemby. This adds a few minutes.
I can zip this out in 2 hours, with air tools for disassembly and a die grinder with gasket cleaning 3m pad on it. Takes all of the torture out of the job.
Give yourself 10 hours and you will probably finish in 5 hours.
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