1987 Silverado Help!

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Swims350

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egr solenoid, esc module and the map sensor are ALL on the black bracket PS of the intake.

the pic you just posted, that black metal thing on the side IS that bracket.

the rear thing with a vac. line IS the MAP sensor and the front one IS the esc module.

The egr solenoid mounts under those on the bottom side, maybe 87 didn't get the egr solenoid?
 

AMW

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it did have egr i seen a video of guy on youtube his 87 same model engine had it aswell but my doesnt dont know why someone would take it off but i was wondering earlier if maybe thats where the extra hoses go to and if that might be my problem.

http://www.youtube.com/watch?v=lg4cCLDsFtY

skip to 0.46 into the video you can see it there in his
 

Jims86

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this picture you can see one of the caps on the nipple the other one is underneath that big hoses in the middle

Nope, they all got the solenoid, because EGR is inoperative until your in gear. It looks like somebody got lazy, and just plugged it.
That plugged off port on the front of the throttle body is supposed to be connected to the egr solenoid, then from the solenoid to the egr valve.
Tha large hose in the middle is to the PCV valve, and the smaller line goes to the charcoal cannister.
Also, It looks like those 2 wires sticking up in the back ground have exposed ends, may have been to the egr solenoid. You need to trim or tape up the pink one, because thats hot 12 volts when you turn the key on.
What the heck is that to the left of the distributor on the back of the manifold?
 
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Swims350

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that big round pod thing is for cruise control.
 

dhamp

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AMW, I should be able to take pics today after work if you still need them. Just let me know.
 

AMW

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yeah if you can take pics im going to get new vacuum hoses today
 

AMW

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does anyone know what sizes hose i should get? i wanna take the hoses with me to part store but am afraid ill forget where they go lol
 

Jims86

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does anyone know what sizes hose i should get? i wanna take the hoses with me to part store but am afraid ill forget where they go lol

Before you go replace something that doesnt need to be replaced, go get a can of carburetor cleaner. Start the engine, and let it warm up. Then spray around the base of the throttle body(bottom) and around all the hoses to see if the engine speed changes...if it does, that is a vacuum leak.
No need to replace them, if they are not bad.

Check this out:http://i144.photobucket.com/albums/r183/jameslleary/e6f6d24e.mp4
 

AMW

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ok i watched your video that helps alot, ill pick up some starter fluid or carb cleaner? and spray around the hoses and all should i take my throttle body off and replace that gasket you were talking about btw im in Georgia we have oreilys autozone and advanced auto
 

Jims86

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ok i watched your video that helps alot, ill pick up some starter fluid or carb cleaner? and spray around the hoses and all should i take my throttle body off and replace that gasket you were talking about btw im in Georgia we have oreilys autozone and advanced auto

Carb cleaner, Not starting fluid. I like Barryman's spray carb cleaner. Spray around the bottom of the throttle body first, where that first gasket is in the video. Might no be a bad idea to just replace it anyways.
 

AMW

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yeah i have to replace it the gasket on the bottom was ate up just fell apart my throttle body how should i clean it? and the surface the gasket sits on?
 

AMW

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btw was that a spacer you had your throttle body on? cause mine was just sitting on a gasket there was no metal piece like yours
 

Jims86

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btw was that a spacer you had your throttle body on? cause mine was just sitting on a gasket there was no metal piece like yours

No, that spacer is an add on, they didnt come with them. Its a CFM-Tech super sucker.
When you take the throttle body off, stuff some rags in the 2 holes to keep loose crap from falling in, and then scrape any stuck on gasket material. Most of the time, the gasket comes right off.
 

AMW

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ok should i use carb cleaner to clean the throttle body it is sorta dirty
 

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