Question about 1993 Buick Century

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Vacum line off

There are 3 lines 2 of them are connected to the canester behind the passenger front light 1 of them is loose i dont know where it goes?

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Have a look on the canister if it has any fittings that are missing a vacum line from what i can remember most canisters have 3 lines 1 coming from the fuel tank 1 vacume coming from the engine(INLET MONIFOLD)1 coming out of canester out to the atmosphere,hope this helps..

Posted on Jan 21, 2009

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I have a 4wd 98 ram 1500 360 and when i move the shifter it will not go into 4wd, the light doesn't come on or anything its like its not even there i believe it may be the vacuum lines but i dont know...


Pistol09pete,

It sounds like you have a problem with the vacuum lines that travel from the transfer case (these should be color coded lines that are green, red, and black). Goodluck

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My car was searched going through customs and they searche dall the wiring above the passenger side knees (below glove box). Now my Ac/Defog/heater won't turn on. Is there a connection in point for the AC...


If you mean the blower doesn't work they may have unplugged the blower motor which is located behind the glove box with the plug pointing down I believe. The cover under the glovebox is also where the signal flasher is.

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Blower work fine but still dont get no heat or defrosters could use some help thank you


It sounds like your heater controls are not working. They are usually operated by a vacume line. check under dash passenger side behind glove box for the vacume line disconected ps check engine side first its easier. if vacume line is good chech vacum at heater box their is a meatel vacume unit that opens and closes the heat and defrost doors. if your heat is only comeing out of the defrosters The doors under the dash are not opening and closeing. ChecK the metal vacume unit . A vacume pump can be purshed at parts store some have a loner program.

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AC is blowing cold air, but it is coming out of the defrost and not the front vents. Why are the front vents not working?


Check over on the passenger side under the hood by the fire wall, there will be some elec. connection, just below that there will be a small vacum line that should go into your fire wall, check that it has vacum, it should also have a one way valve, small round looking some time that get clog, needs to have vacum that is what power the blend door's.

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1 Answer

1991 Grand Prix Battery keeps draining...


when you foamed in the door, did you get the foam in the light bulb socket? Also, check to see if any wires are pinched, or pulled out of there connections. The window wont cause any problems as long as you didn't mess with the motor, but check to see if you pinched or disconnected any wires in that location also. The high throtle is probably a sensor problem, you can check the trotle body sensor and the air intake sensore, as whell as your mass air flow. Also, a big thing that affects idle is vacume. Check all your vacume lines make sure that they are not cracked or broken. Remember vacume lines can be rubber or plastic. The bounce in power is probably a vacume line also.

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1989 Jeep Cherokee Pioneer 4wd problems


Most Jeeps are mechanically shifted, not vaccum.

If it is mechanically shifted, simply check your linkage underneath.

That's after you check you front driveshaft and make sure it's working, and there. I've known people to steal em.

If it is vacuum operated, then I'm at a loss.

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1 Answer

Clicking noise from font driver side wheel 4 wheel drive


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3 Answers

4 wheel drive won't work


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