Question about 1990 Pontiac Trans Sport

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Need a Vaccuum line diagram for 1979 Pontiac Trans Am 403 4bbl Auto Transmittion

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

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SOURCE: I need a 1979 Trans Am A/C vacuum line diagram

Diagram is on the support near radiator,we have nothing

Posted on Jun 16, 2012

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SOURCE: 1997 pontiac grand am

junk it

Posted on Sep 12, 2008

  • 2002 Answers

SOURCE: I have A 1985 Pontiac Trans Am with A 5.0L E4ME

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

  • 19 Answers

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

  • 4 Answers

SOURCE: Where is the Vaccuum hose that is conected to the

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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