hhaase
hhaase Reader
5/5/17 6:32 p.m.

If you've followed along with my escapade, I had to pull the head on my MR2 over the past few weeks. It's almost ready for starting it up again, but one cruise control vacuum line has me confused. And of course it's NOT covered in any of the manuals or parts breakdowns for this car, figures.

'88 NA with manual transmission, essentially stock....

There's a vacuum line that comes out of one of the cruise control pieces, it runs back around the distributor, along the coolant hose, past the radiator cap, and down into the intake manifold somewhere. Where the heck does this thing connect? I can't find any spot to plug it back into at all.

-Hans

EastCoastMojo
EastCoastMojo Mod Squad
5/5/17 7:27 p.m.

Is there a t fitting to one of the other lines? Maybe a port on the throttle body instead of the manifold? Sorry, I don't have direct experience with that motor but these were my first thoughts.

Dr. Hess
Dr. Hess MegaDork
5/5/17 7:37 p.m.

It's going to have to come off the intake manifold or a T off a hose on the intake manifold. There must be a blank connector somewhere. You just need to find it. The throttle body has like 10 connections by itself. Also look around the vacuum reservoir.

hhaase
hhaase Reader
5/5/17 8:58 p.m.

Found it, runs to a 'filter' on the intake manifold. All the photos I saw of that part only show one of the three connectors used, and the other two capped, but every car I saw also didn't have cruise control.

On mine, one of those caps was missing.

Also found out the hard way I didn't tighten down the banjo fitting into the fuel rail. Wooooooooo boy the garage smells.

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