APN Intake Installed (Pics) - 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 07-25-2007, 06:30 PM   #11
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Well, here'* the deal...

I still can't tell if my upper intake has failed or not. I am losing coolant somewhere, very slowly. There is no visible smoke coming from the exhaust, and the exhaust itself smells...gassy. Nothing else. I also have had no prior evidence of coolant in the engine oil.

However...

The fact that I am this nervous about the running state of my engine is exactly why I'm going to have it replaced. There'* nothing I hate more than spending money unnecessarily, except perhaps not spending the money on this now and having my engine cataclysmically fail to the point where something much larger - and more expensive - is required.

Thus, I am trying to put together a list of parts I will need. Whether I am going to do this myself or have my mechanic friend do it, I'll need to have these beforehand.

First off, the "cure" for the upper intake problem, this revised intake:
http://www.autopn.com/store/pc/viewP...product=229679

Is that the one you would most recommend?

Second, the aluminum lower intake gasket. Can anyone give me the GM part number for that?

I also understand that the oil and coolant will need to be drained from the vehicle, so I will make arrangements to pick up my preference in both.

Is there anything else I'll need?

Lastly, and perhaps most importantly...in your honest opinion, is this something a beginner should attempt, even with your guidance? If you believe so, then I'll do my best and perhaps make this into the most in-depth thread BC has on this, as I'm sure I'll be asking questions every step of the way. I would post many pictures as well, of course.

Thanks so much for your time.
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Old 07-25-2007, 07:09 PM   #12
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When do you plan on doing this, if you decide to do this?

I have Mr Cell and we can chat about any info you'd want to know..

http://www.bonnevilleclub.com/forum/...e=article&k=38

Not sure if you have seen that yet... But there are part numbers and good info there..

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Old 07-25-2007, 07:24 PM   #13
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Thanks for the offer and for the link. I'm planning on giving it a shot as soon as I have all the necessary parts, so maybe sometime next week?

I have a quick question about the APN replacement intake. Do you think that'* the best fix for the problem?

If so, I think I'm about set. I found the part number for the replacement aluminum gasket thanks to your link. With that, the intake replacement kit, some coolant, oil and filter, and whatever tools I may need, I should be set to do this, right?

I'm still debating whether or not to try it. Time isn't an issue, I'm just worried about getting stuck at a point where I have to get the car towed to finish the repair.
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Old 07-25-2007, 07:40 PM   #14
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Quote:
Originally Posted by LeSabreUltra
Thanks for the offer and for the link. I'm planning on giving it a shot as soon as I have all the necessary parts, so maybe sometime next week?

I have a quick question about the APN replacement intake. Do you think that'* the best fix for the problem?

If so, I think I'm about set. I found the part number for the replacement aluminum gasket thanks to your link. With that, the intake replacement kit, some coolant, oil and filter, and whatever tools I may need, I should be set to do this, right?

I'm still debating whether or not to try it. Time isn't an issue, I'm just worried about getting stuck at a point where I have to get the car towed to finish the repair.
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If you are partiall mechanically inclined and have a decent assortment of tools, you should be set..

You'll have to move the plug wires out of the way.... Unplug the electrical connectors and move them... Disconnect the fuel lines at the rail... Remove the rail with injectors.... Remove the EGR shield.. Remove the Alternator to get to that last pesky bolt( 3 bolts )... Remove the Vac lines... Remove the bolts from the upper... And then the 10 bolts from the lower... You may need to remove the Alternator bracket that attached to the rear of the alternator as well..

I could have had this done in a couple of hours, but I had to take the time to yank all of the lifters and pushrods as well as the rockers... It was a little messy for me...

You won't even have to yank the valve covers...

The new upper kit should have a reduced diameter stove pipe, which is easily replaced...

Again, if you have any questions I am more than willing to Chat with you about any questions you have..

If I had just bought a car that had intake issues and never did one before, I would be tempted to do this with the right instructions..

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Old 07-25-2007, 07:48 PM   #15
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You make it sound easy enough that I think I'll give it a try.

I can at least set about removing things while I'm waiting for parts. While the intake is off, I might as well clean the throttle body.

My assortment of tools is pretty good but I lack any sort of a torque wrench. I'll probably need one for both inch and foot pounds, right?

I need to do a little more thinking about what all I need to do before I can begin, and I may even start tonight for all I know.
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Old 07-25-2007, 07:54 PM   #16
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Yes both torque wrenches would help..

Being that the new lower gaskets are aluminum I like the bolts a little tighter than stated.. But for the Upper you really don't want to get to happy on those bolts... Really they aren't much more than hand tight... I believe they are about 7 ft lbs for the upper and 10-12 for the lower bolts..

Yes that would be a great time to clean the Throttle body...

I forgot one step tho, you'll have to remove the EGR tube as well.. One bolt on the lower part of the manifold under the Throttle body, and the other nut at the EGR valve base...

Its not too bad to do

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Old 07-25-2007, 08:01 PM   #17
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Great, thanks. I'll go buy a set of torque wrenches tonight and start disassembling.

Might as well drain the fluids as well. Question about that, when I tried to drain the cooling system before, I could not if my life depended on it find the drain plugs on the engine block. Would it be sufficient to just drain from my lower radiator hose? I don't want to knock coolant all over the place.
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Old 07-25-2007, 08:03 PM   #18
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The Drain for the radiator is buried on the drivers side of the radiator under the air box

Funky place for it... But its there.. I had an arm bent in every direction getting to it today

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Old 07-25-2007, 08:09 PM   #19
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Thanks, I'll see if I can have better luck this time.

Unfortunately I'm going to have to do this in the driveway, the garage is taken up by some other junk right now. Oh well, I'll set about raising the front end of this thing and getting to work soon. I think I'll take off the throttle body and clean it tonight, then move on to more things tomorrow after work and do it a little at a time.

I should probably get your phone number in case I run into trouble, and thanks for being willing to help.
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Old 08-01-2007, 12:02 PM   #20
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Little update...

I decided a while back not to try to do it myself. Mechanic gave me an excellent deal if I helped him with the process, so I will be learning from this experience.

While he was looking at my engine (I mentioned the help I got here as he has a Bonneville, you guys got some free advertising. ) we noticed that there appeared to be some wetness on the outside of the engine right around where the UIM connects to the throttle body...so maybe my phantom coolant leak was the UIM after all. I had suspected the heater core as I would periodically smell a very faint aroma of coolant, but now I feel it was just the coolant on the engine burning off. I would also get that same faint aroma when I opened the engine bay. It'* set to go, I have the LIM gaskets and everything else I need, the APN intake is due to arrive today, so we'll get to work on it tomorrow.

While he was taking my serpentine belt off, he noticed my belt tensioner was wiggling more than it should...needs to be replaced. :( Complicated little device, too.

Today he'* going to have my throttle body off and I will take it home, clean it and the MAF sensor.

I'm curious to see how clean my lifter valley is. I've been running nothing but Mobil 1 or Royal Purple since I got the car.
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APN , DORMAN , MOTORMITE replacement upper intake ( UIM) rkpatt 1992-1999 33 02-10-2008 06:49 PM
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replacement UIM from APN come with EGR tube sleeve? showshocka2k 1992-1999 6 03-15-2007 11:11 AM


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