I can't remember how the vacum hoses were hooked up on a 2000 grand prix with 3.8 engine. The only thing I am having a problem with is the california emmisions at the rear of the engine there is the vacum that has one orfice then there is one on the intake and two on an sensor of some sort that was hooked up to it?

what engine ? 22R-TE, 22R, 22R-E California or federal? give me your engine i'll send you the vacuum diagram.
thanks

Check all vacume hoses for leaks

check your codes and vacum hoses and see if it needs a tune up

There are several variables here. First, it must be determined if your vehicle is equipped with emission controls that were certified for sale in California. (This makes a big difference on vacuum hose routing) Then, there are different diagrams for early 1993 models and late 1993 models. My recommendation is to either buy the Mis=tsubishi shop repair manual for your vehicle, or subscribe to an information service such as AllData DIY. That way, you can look at the diagrams and compare them to what you actually have under your hood. AllData DIY is currently available for a single vehicle for only $26.95/year. It has all the service information you could ever need for your vehicle. Click the following link to check it out. AllData DIY

Click over image diagram for zoom...

Fig. 52: 1993 4.3L engine - federal

Fig. 53: 1993 4.3L engine - California

Fig. 54: 1993 4.3L engine - California alternate

Fig. 55: 1993 4.3L engine - federal alternate

Hope this helps.

all themostats are usually in the same place. at the bottom hose going from the block to the radiator on the left side if you are under the hood. take the hose off where it goes into the engine. NOTE: have coolant ready because all of the coolant in the radiator will come out!

Vacuum hose routing-1989 2.5L California Turbo I engine




Vacuum hose routing-1990-91 2.2L and 2.5L Federal engines with manual transaxles, and 2.2L and 2.5L Canadian and California engines




Vacuum hose routing-1990-91 2.5L Turbo I California engines




Vacuum hose routing-1990-91 2.5L Turbo I Federal and Canadian engines

Hope helped with this information (remember rated this help) Good luck.

the fan motor could just be bad, you can test this by removing the fan and connecting a wire to each terminal and to a battery. the wires hooked up one way will spin the fan and the other way will spin the fan backwards so you cant hook it up wrong. I hope that helps you out!

Take some WD40 and with engine running spray some around all vacume lines if a line is leaking the engine will rev up, than you will know where its at, just watch where you spray it, stay away from exhaust and electrical as much as possible, you don't need to spray a whole lot,A intake gasget might be leaking too try around there consentrating around #1 cyl., just be carefull don't need a fire.

There is no way to post a photo on this web site, go to the public library they should have a repair manual, also there is a diagram on the emission sticker above the radiator or on the shock tower, either left or right side depending on year. Another thing no matter who you ask they will need this information:
1. Year of car,
2. Engine, V6,V8 etc.
3. California or Federal emissions equipped.
OK, go to it!!