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post #1 of 38 (permalink) Old 10-13-2013, 02:26 PM Thread Starter
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coolent leak

so Coming Home From The Car Show This Morning I Noticed SOme Smoke Coming From The Hood. So I Go And Get Some More Coolent, Thinking It Was Just Low. After I Fill Her Up, I Drive Home With The Same Problem Persisting. After Investigation I Find The Leak

Passenger Side Passage Just Below The T-stat. I Dont Have The Funds ForAan Intake Swap PresentY. Is There Anything I Can Do To Patch It? RTV?
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post #2 of 38 (permalink) Old 10-13-2013, 02:44 PM
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you can try epoxy as a temporary fix, but now you need to save for a proper fix.

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post #3 of 38 (permalink) Old 10-13-2013, 04:51 PM Thread Starter
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Any RecommendationS On What Kind I Should Get? I Was Thinking Rtv Because We Use It InTthe Pi Intake swaps
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post #4 of 38 (permalink) Old 10-13-2013, 06:08 PM
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get something like gorilla glue, or other high temp epoxy. rtv might do well for a while, but it really wasnt designed to handle sealing a crack where there is pressure, unless you are also talking about using the rtv between parts and using the pressure of torque to aid sealing. epoxy tends to be more permanent, as well as resistant to a variety of chemicals that frequent that area.

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post #5 of 38 (permalink) Old 10-13-2013, 07:13 PM Thread Starter
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My Worry Is That The Epoxy Will Too Difficult To remove When Im Trying To Do The Intake Swap
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post #6 of 38 (permalink) Old 10-13-2013, 11:52 PM
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None of those will work. The system is under pressure, so it will find its way pat any epoxy or glue or RTV. A dorman intake can be had for $200. Just bite the bullet and replace the intake now before you overheat the motor and cost yourself more.

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post #7 of 38 (permalink) Old 10-14-2013, 01:16 PM
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None of those will work. The system is under pressure, so it will find its way pat any epoxy or glue or RTV. A dorman intake can be had for $200. Just bite the bullet and replace the intake now before you overheat the motor and cost yourself more.
Yeah, there's no way to bandaid it, unfortunately.

Just keep an eye on ebay to see if anything comes up...
http://www.ebay.com/sch/sis.html?_kw...ustang+GT+4.6l
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post #8 of 38 (permalink) Old 10-14-2013, 03:33 PM Thread Starter
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Well I Do Think The Epoxy Would Work Only Problem Is ThaT The Metal Epoxy I Found Has A Finished Strength Of Around 3500 Psi. Fortunately I Did Buy The Parts For A 96-97 Intake swap
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post #9 of 38 (permalink) Old 10-14-2013, 09:45 PM
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Wait, I'm confused. I thought you were talking about a 96/97 intake with the plastic coolant crossover leaking. I've never seen a 94/95 intake crack or leak, and I'm trying to figure out what passage you are talking about, but maybe you just need intake gaskets?

-91 Cougar LS, coming soon, complete overhaul with a 427" Windsor.
-90 XR7 5-speed black on black w/sunroof, MP2, coated rotors, double intercooler, 15%OD, ported heads, comp stage 1 cam, 85mm TB, 90MM LMAF, 80# injectors, and ported big valve heads
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post #10 of 38 (permalink) Old 10-15-2013, 11:04 PM Thread Starter
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Yeah Sorry If I Wasnt Specific, Its The Gasket
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post #11 of 38 (permalink) Old 10-16-2013, 08:30 AM
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If it is just the gasket that is leaking, that is a cheap fix. New gaskets should be about $20, and changing them out takes about 4 hours. You may even be able to save some time by not removing the intake completely, just remove the alternator, unbolt the intake, and lift it up enough to slide the old gaskets out and new ones in.

-91 Cougar LS, coming soon, complete overhaul with a 427" Windsor.
-90 XR7 5-speed black on black w/sunroof, MP2, coated rotors, double intercooler, 15%OD, ported heads, comp stage 1 cam, 85mm TB, 90MM LMAF, 80# injectors, and ported big valve heads
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post #12 of 38 (permalink) Old 10-16-2013, 10:42 AM
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Ya sealing from the outside is never going to work, invest in the gaskets, you would have anywhere from $10-15 in rtv anyways

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post #13 of 38 (permalink) Old 10-16-2013, 10:49 AM
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I have intake gaskets if you need a set. Never been used.

RTV or epoxy isn't going to get you anywhere. Also, it'd be very helpful if you post a good picture of the leak so we can see exactly where it's coming from. You know what they say, a picture is worth a thousand words!

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post #14 of 38 (permalink) Old 10-18-2013, 04:04 PM Thread Starter
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well i got the "new" 96-97 intake in. correct me if i'm wrong, but i need a tune to run this right?
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post #15 of 38 (permalink) Old 10-18-2013, 04:15 PM
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Nope.

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post #16 of 38 (permalink) Old 10-18-2013, 09:35 PM
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x2. Nope. Black_Cat ran his without a tune for quite a while.

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post #17 of 38 (permalink) Old 10-18-2013, 09:57 PM
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To clarify, the MAF sensor will account for the extra air entering the engine. The only "difference" in a tune which having the PI intake vs. the non-PI intake would prompt is a minute difference in intake volume scalars, which would have an effect on transient fueling.

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post #18 of 38 (permalink) Old 10-19-2013, 05:35 PM Thread Starter
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Yeah I Do Notice A Lack Of Power Over The Old 95 Intake, And What Is Transient Fueling?
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post #19 of 38 (permalink) Old 10-19-2013, 10:00 PM
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Lack of power might be in the lower RPM. The PI intake loses a few HP in the sub-3000 RPM range.

Transient fueling is essentially how the computer predicts how much fuel to deliver to the cylinders in situations where the MAF sensor has not yet reacted to changes in airflow at the intake valve.

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post #20 of 38 (permalink) Old 10-20-2013, 03:59 AM Thread Starter
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post #21 of 38 (permalink) Old 10-20-2013, 07:27 PM
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is it a dorman? those things usually come with smaller intake runners and a lot of extra injection molding crud they don't trim off. you would most likely feel a loss of power with one of those.

otherwise I'm not sure the NPI plastic had much difference in the way the runners were setup, just a little lighter and a whole lot better locations for things like IAC, EGR, etc.

the PI they dipped the runners down a little farther into the valley and made them a whole lot bigger.

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post #22 of 38 (permalink) Old 10-20-2013, 10:56 PM Thread Starter
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i know its a used manifold, i bought the whole kit off splattered a while back ill have to check with him.
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post #23 of 38 (permalink) Old 10-21-2013, 07:18 AM
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I don't know the details of the physical differences between the 94/95 boat anchor and the 96/97 composite intake, but the composite is supposedly good for 15 ft-lbs of torque over the aluminum intake at 200 RPM less (3000 vs 3200).

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post #24 of 38 (permalink) Old 10-21-2013, 07:23 PM Thread Starter
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I Think Its The Different Throttle Spring Im Getting Used Too.

You Guys Think A Bigger Maf Houseing Is In Order?
I Have A 75Mm Tb, But Still Have The Stock Maf.

Also Isnt There A More Accurate Maf Sensor? A Six Pin Rather Than The Four.

Or Should I Just Get A Tune?
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post #25 of 38 (permalink) Old 10-21-2013, 07:52 PM
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The stock MAF and housing is plenty adequate for an engine making less than 250 BHP. Don't change ANYTHING MAF sensor related without getting a tune.

The 80mm GT MAF isn't more accurate, per se, but it does peg at a higher airflow than the stock MN12 MAF.

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post #26 of 38 (permalink) Old 10-22-2013, 12:32 AM Thread Starter
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ok its threw a code on the way home from work.

a P0171 system too lean bank 1

you guys think its just the O2 sensor?
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post #27 of 38 (permalink) Old 10-22-2013, 08:50 AM
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ok its threw a code on the way home from work.

a P0171 system too lean bank 1

you guys think its just the O2 sensor?
More likely a vacuum leak with that code. A scanner with live data can give more info. Even OBD freeze frame data may help!
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post #28 of 38 (permalink) Old 10-22-2013, 10:04 AM
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ok its threw a code on the way home from work.

a P0171 system too lean bank 1

you guys think its just the O2 sensor?
No. The O2 sensor is working just fine. That's why you got that code. Check for any vacuum leaks caused by broken, cracked, or missing vacuum hoses/connections. The plastic lines tend to crack if you mess with them enough.

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Last edited by Mgino96tbird46; 10-22-2013 at 10:09 AM.
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post #29 of 38 (permalink) Old 10-22-2013, 11:55 AM
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Also, check for intake and exhaust manifold leaks on the passenger side ... a "Bank 1" only error typically means it's on that side only, and not a common point (throttle body, PCV plumbing, etc.)

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post #30 of 38 (permalink) Old 10-22-2013, 01:57 PM Thread Starter
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I Do Have A Scanner With Live Data, How Can This Help Me Pinpoint The Problem?
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