Question about 1990 Pontiac Trans Sport
Need hose diagram that goes to the windsheild wiper motor were there are 3 vacuum line conections. Need to know where they come from and which conecter to hook them to.
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Posted on Jan 02, 2017
You need to hook the vacuum advance for the distributor to the front lower left on the carb. The PCV valve goes in the center bottom front. The dashpot for the choke goes upper left front. The vacuum to the brake booster goes in the lower middle at the rear. If you have a second vacuum pot on the rear on the choke side it needs vacuum from the front. The transmission vacuum usually hooks to the rear on the intake. This is all you need. The rest of the ports on the carb and intake can be plugged. Hope this helps.
Posted on May 19, 2010
SOURCE: Where canI get a diagram
Chilton manual, or Howes Manual, they are a bit expensive though...go make friends with a reputable local garage (not dealer) and they might photo copy that page for you...some vehicles have that exact diagram on a sticker under the hood...take a good look around, it may be right by the belt routing diagram on the underside of the hood or on the front support ver the radiator.
Posted on Aug 02, 2010
The EVAP lines for the car are all black hard plastic and can be seen mostly under the hood. Trace them to find what your looking for.
Posted on Mar 10, 2011
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