Vacuum loss..

Started by Prospeeder, January 16, 2006, 06:42:02 PM

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LukeZ34

Here, a quick search on the forum turned up this image. This is how the car's vacuum lines SHOULD be. So if it's not, then fix it so that it is.

Former owner of 2 TGP's..


2006 Pontiac Grand Prix GXP -41k, Transgo Shift kit, auxiliary trans cooler, DiabloLew Tuned.

1987 Suzuki Samurai JX Tintop - Weber DGV5E carb, 2" exhaust, Calmini Header, 162k

Prospeeder

The map sensor..isnt that on the back of the motor??? I think thats where the Line from the check valve goes..or mabye to that plug for a brake booster or what ever, i dont know, i will make sure tomarrow
1990 TGP Chipped RU-1390 K&N
2001 Audi S4 Stage 2
1999 VW Beetle
1997 BMW 740iL

LukeZ34

Yea, the MAP sensor is on the rear left side of the plenum, closest to the Alternator.
There should be nothing in the brake booster port on the rear of the plenum. It should be plugged with a large hex screw as it was from the factory.

Just print that diagram out, and start tracing the lines. That's the best way of finding out how everything is connected, and if it's connected properly.
Former owner of 2 TGP's..


2006 Pontiac Grand Prix GXP -41k, Transgo Shift kit, auxiliary trans cooler, DiabloLew Tuned.

1987 Suzuki Samurai JX Tintop - Weber DGV5E carb, 2" exhaust, Calmini Header, 162k

z284pwr

Quote from: ProspeederThe map sensor..isnt that on the back of the motor??? I think thats where the Line from the check valve goes..or mabye to that plug for a brake booster or what ever, i dont know, i will make sure tomarrow

Umm, what brake booster?  Where?  Your PMIII isn't vacuum assisted, it doesn't need vacuum.  I would do what Luke suggested, for some reason, I'm thinking your vacuum lines are all screwed up.



On a side note - One cool thing about non vacuum assisted brakes, you could run a HUGE cam and not worry about your brakes at low speeds, idle motor wouldn't like it very much though :lol:

Prospeeder

Quote from: z284pwr
Quote from: ProspeederThe map sensor..isnt that on the back of the motor??? I think thats where the Line from the check valve goes..or mabye to that plug for a brake booster or what ever, i dont know, i will make sure tomarrow

Umm, what brake booster?  Where?  Your PMIII isn't vacuum assisted, it doesn't need vacuum.  I would do what Luke suggested, for some reason, I'm thinking your vacuum lines are all screwed up.



On a side note - One cool thing about non vacuum assisted brakes, you could run a HUGE cam and not worry about your brakes at low speeds, idle motor wouldn't like it very much though :lol:
I know quite a bit about the PM3, Power assisted with no vaccum, uses a pump with a nitrogen charged accumulator to pressurize the brake fluid at around 2700 PSI as a booster. I was wondering mabye the people put the line on the plug mabye  :?
1990 TGP Chipped RU-1390 K&N
2001 Audi S4 Stage 2
1999 VW Beetle
1997 BMW 740iL

Prospeeder

alrighty fixed it, turns out that line had no vacuum, nothing, was dead basicly, so i undid it and plugged it just in case and put them all in the correct places and everythings workin good. Thanks all!
1990 TGP Chipped RU-1390 K&N
2001 Audi S4 Stage 2
1999 VW Beetle
1997 BMW 740iL