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2000 Chevrolet Malibu Repair Question


Topics covered: Engine, Fuel pressure, Fuel pressure regulator.
Mileage: No information provided.

Asked on December 26, 2007

2000 Chevy Malibu vacuum diagram


I replaced the intake manifold (lower gaskets). everything is workding fine except-
during reassembly I was unable to locate the vacuum line that hooks to the upper intake plennum right by the fuel pressure regulator.
After some searching I found the broken off end of the line in the engine compartment.
I cannot find the rest of the line or any unused vacuum port anywhere.
there is no vacuum diag. anywhere on the car or in my Haynes repair manual.
My gas milage is poor. no engine trouble codes are being set.
Avatar Asked by 1000dlrbill

Answer

Replied on December 26, 2007



it hooks with the map sensor

Tiny Answered by BMRFIXIT (expert)
19,736 answers provided
Replied on December 30, 2007

NO it doesn't hook to the MAP sensor.
The MAP sensor on the v6 is mounted directly to the upper intake plenum by the ignition coils, and connects to the plenum with a very short tube.
It is connected and working.
There is also a line which goes from the MAP to the fuel pressure regulator.
The line and port in question is located close to the fuel pressure regulator on the front driver side corner of the upper intake plenum.

it hooks with the map sensor[/quote:1ab3acc9a4]

Tiny Response from 1000dlrbill
1 question asked
Replied on December 30, 2007



it hooks with the map sensor[/quote:98bebd3928][/quote:98bebd3928]

which one ????


http://www.2carpros.com/forum/automotive_pictures/99387_vacuum_1.jpg

Tiny Answered by BMRFIXIT (expert)
19,736 answers provided

Replied on December 30, 2007



it hooks with the map sensor[/quote:178989135c][/quote:178989135c]

which one ????


http://www.2carpros.com/forum/automotive_pictures/99387_vacuum_1.jpg

[/quote:178989135c]


http://www.2carpros.com/forum/automotive_pictures/134725_99387_vacuum_1x_1.jpg



the port is located near the fuel pressure regulator.
some pictures in the Haynes manual show it going toward the firewall along the wiring harness but only a short section of the line is visible

Tiny Response from 1000dlrbill
1 question asked
Replied on December 30, 2007


http://www.2carpros.com/forum/automotive_pictures/99387_malibu_1.jpg


I THINK # 8 IS WHAT U R LOOKING FOR

Tiny Answered by BMRFIXIT (expert)
19,736 answers provided