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Unread 11-21-2010   #1 (permalink)
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Default 1988 Mustang GT, Explorer manifold swap...

Hey guys need a little help! I am doing the Explorer manifold swap on my 88. The original throttle body has two ports on it one on the right and one on the left. On the original Lower intake there was a coolant hose (I think a coolant hose) that ran to one of these ports and the other ran to the oil filler neck, on the Explorer lower there is no spot for the hose that ran off the original lower intake which I believe provided coolant to the body or maybe vacuum.?.? Do I just plug that port on the throttle body??? The other side is ok and is hooked up to the oil filler neck. Also, now keep in mind I am new at this.... I put the new manifold on before I noticed there was no spot for the intake air sensor...I know, bone head move but a rookie mistake. I know I need to tap an die a new hole for this sensor but would you recommend pulling everything back off or should I be ok doing it while its still together and just run a shop vac while I'm drilling to grab most of the metal fragments??? Also I started the car with out this sensor in place and the car did start and ran for a good 10 minutes I was adjusting the timing when she stalled and I have not been able to get her started since! It seems she is flooding out which I think may be do to the Air sensor not being plugged in but not 100% sure. I've tried everything except the drilling and putting the sensor back in its original place which includes setting the timing 10 times just to be sure it was not the issue. I even changed the plugs because they were saturated but still nothing. She is turning over and seems to want to start . Any help would be greatly appreciated....I'M LOST!

Last edited by joeymo; 11-21-2010 at 08:15 PM. Reason: misspelling
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Unread 11-21-2010   #2 (permalink)
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Just a tip, you do not need to put the IAT sensore at that exact spot. Some people just tap the intake piping and put it there.
As for the small coolant line, I'm not exactly sure what you are talking about, A line that went into the lower intake? The only coolant carrying line in the lower I know about goes to the heater hoses
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Unread 11-21-2010   #3 (permalink)
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Thanks for that tip! Probably the way Im gonna go. This hose if standing in the front of the vehicle came of the left rear of the lower intake where a threaded nipple was and ran into the back side of the throttl body....if that makes anymore sense to you.?
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Unread 11-21-2010   #4 (permalink)
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what year explorer is this intake off of, do you know?
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Unread 11-21-2010   #5 (permalink)
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There are two things this could possibly be:
1. It could be part of your PCV system. A valve that relieves crankcase pressures and redistributes them back into intake via the throttlebody, in which case this would not be a coolant hose, just a PCV hose, kiind of like vaccum hose
2. If the hose came from the back of the upper intake (around the throttlebody) it could be part of the EGR system, depending on whether there is still an EGR still on your vehicle
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Unread 11-21-2010   #6 (permalink)
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The intake is off of a 96 Explorer. Definately not part of the PCV. If you have your original throttle body and spacer......there are to ports on them...actually on the spacer not the body( Sorry) there is one on each side. the one on the right has a home and the one on the left does not.

Last edited by joeymo; 11-21-2010 at 09:12 PM. Reason: misleading
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Unread 11-21-2010   #7 (permalink)
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http://i53.photobucket.com/albums/g4...t/DSCN2766.jpg
You have the hose on the left and the one on the right. The one on te left went to a nipple on the old lower intake. The Explorer intake did not have it...can I just plug that port?????
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I would say plug it. Having looked at the explorer intake way more than my stock one, I really can't reference what you're talking about. I assume you can just plug it, but hopefully someone with a world more expereince than me will chime in with their opinion
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Unread 11-21-2010   #9 (permalink)
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Ido appreciate all your help! Now just have to figure out if not having the ACT sensor plugged in is what is causing her not to start. Thanks again!
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Unread 11-21-2010   #10 (permalink)
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the 90 coming off the throttle body goes to the oil fill neck. the two on egr spacer are for coolant and you dont need them, plug them. And plugging that sensor into the cold air intake piping works great.
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Unread 11-22-2010   #11 (permalink)
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Thanks!! Do you know if me starting the car without this sensor plugged in at all would be th cause of her stalling out and not starting again because the car cant find the right air/fuel mixture????
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Unread 11-22-2010   #12 (permalink)
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Thanks to all that helped. The problem enede up being the t-stat not sitting right and filled the manifold with coolant!!!!! WTF!! Oh well better luck next time!
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