A manifold that doesn't crack?
#11
Senior Member
True Car Nut
I stuck with Dex Cool, mainly because I always service the coolant in a little over half of the what they say it can last, I really think it is improperly maintained systems that have the problems with Dex Cool, because I have always mixed it at 50/50, have always serviced it sooner than required, I have always used distilled water, and I have always bled the air out of the system properly, and my radiator fins are as clean as they looked when the radiator was new, at least from what I can see when I flush it.
If I ever do change coolants it will be the Zerex G05 though...
#12
-- SITE DONATOR --
True Car Nut
I tapped and plugged the throttle body coolant ports on my SLE. The material is VERY thin so you have to be careful since you don't have much to thread into, but it worked.
#13
Senior Member
True Car Nut
What did you end up going with, the Zerex G05?
I stuck with Dex Cool, mainly because I always service the coolant in a little over half of the what they say it can last, I really think it is improperly maintained systems that have the problems with Dex Cool, because I have always mixed it at 50/50, have always serviced it sooner than required, I have always used distilled water, and I have always bled the air out of the system properly, and my radiator fins are as clean as they looked when the radiator was new, at least from what I can see when I flush it.
If I ever do change coolants it will be the Zerex G05 though...
I stuck with Dex Cool, mainly because I always service the coolant in a little over half of the what they say it can last, I really think it is improperly maintained systems that have the problems with Dex Cool, because I have always mixed it at 50/50, have always serviced it sooner than required, I have always used distilled water, and I have always bled the air out of the system properly, and my radiator fins are as clean as they looked when the radiator was new, at least from what I can see when I flush it.
If I ever do change coolants it will be the Zerex G05 though...
#14
Senior Member
Certified GM nut
Thread Starter
This is the UIM I recommend going with, it has an added steel collet where the EGR port is, which along with the reduced diameter EGR Stove Pipe is supposed to keep the EGR area from ever leaking.
GM Intake Manifold Kit
For the lower intake manifold, I always recommend getting the Fel Pro LIM Kit FEL-PRO Part # MS98014T, it has all the gaskets and o-rings you need, unless you block the coolant ports to the throttle body, if you tap and plug those then you really should open up the coolant water bypass a bit.
https://www.gmforum.com/gearheads-11...od-lim-301972/
Here is a thread Bill posted, he mentions L67 and L36, and I have heard of others plug the L36'* TB ports, but everybody says to open up the coolant water bypass ports a bit.
And they also mention rougher running at first when starting the car in winter, since the TB'* air coming in is a lot cooler with those ports plugged..
GM Intake Manifold Kit
For the lower intake manifold, I always recommend getting the Fel Pro LIM Kit FEL-PRO Part # MS98014T, it has all the gaskets and o-rings you need, unless you block the coolant ports to the throttle body, if you tap and plug those then you really should open up the coolant water bypass a bit.
https://www.gmforum.com/gearheads-11...od-lim-301972/
Here is a thread Bill posted, he mentions L67 and L36, and I have heard of others plug the L36'* TB ports, but everybody says to open up the coolant water bypass ports a bit.
And they also mention rougher running at first when starting the car in winter, since the TB'* air coming in is a lot cooler with those ports plugged..
Have you used that sheathed upper? Is it as reliable as it seems? (Though if I get another 120k out of this car, I'll be surprised!)
#15
Retired
Someone here had gotten ahold of some custom made stovepipes. I had one installed for a few years until I upgraded the engine. No problems that I have ever seen with it. And yes, I did have the UIM a few times to inspect for other things.
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
Retired Administrator
2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
#16
Senior Member
True Car Nut
If I weren't on mobile, I'd give you a billion props. I might just throw out this OEM UIM I have and buy that sheathed one. At least then my gasket hunting is done for me, and I don't have to bother with bypassing the coolant flow.
Have you used that sheathed upper? Is it as reliable as it seems? (Though if I get another 120k out of this car, I'll be surprised!)
Have you used that sheathed upper? Is it as reliable as it seems? (Though if I get another 120k out of this car, I'll be surprised!)
I did not go with this one because money was tight, so I just went with re-manufactured UIM from Dorman, which I am not sure, but I believe the Dorman reman is the same as the Ineedpart UIM, minus the steel bushing, I did put the reduced diameter EGR stove pipe in though, a tip when you put that in, use the old EGR stove pipe, it fits down over the new one perfectly, and you just tap it in..
I did have a friend that went with that UIM, but they have only driven the car about a year since replacing it.
I am sure that is the best overall fix, and I can see it lasting the rest of the life of the car, as long as the coolant is always changed regularly, and the coolant system is bled of air properly.
#17
Senior Member
True Car Nut
What did you end up going with, the Zerex G05?
I stuck with Dex Cool, mainly because I always service the coolant in a little over half of the what they say it can last, I really think it is improperly maintained systems that have the problems with Dex Cool, because I have always mixed it at 50/50, have always serviced it sooner than required, I have always used distilled water, and I have always bled the air out of the system properly, and my radiator fins are as clean as they looked when the radiator was new, at least from what I can see when I flush it.
If I ever do change coolants it will be the Zerex G05 though...
I stuck with Dex Cool, mainly because I always service the coolant in a little over half of the what they say it can last, I really think it is improperly maintained systems that have the problems with Dex Cool, because I have always mixed it at 50/50, have always serviced it sooner than required, I have always used distilled water, and I have always bled the air out of the system properly, and my radiator fins are as clean as they looked when the radiator was new, at least from what I can see when I flush it.
If I ever do change coolants it will be the Zerex G05 though...
my 03 monte and my moms impala were in the 30 to 50k range when the dexcool made the pudding in my rad and overflow which never came out stained everything no matter how many times i flushed it. im sure no one even opened my rad cap because i just look at the over flow level without opening the cap. ive always ran prestone extended life in everything. and when i was talking to the guys at the dealer where i buy my cars they change it to that too
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04-16-2004 02:51 AM