As some of you know, ive had this really bad shaking in my car for a while, did the whole tune-up thing, didnt fix it, replaced pcv valve, helped a bit, but nothin really, and then i noticed on the drive to tijuana today(live about 3 hours away) that everytime i used my automatic windows, the car would start to shake. Then a about a hour later, it fellt like my A/C turned on, although it wasnt, so, im thinking that the FAN that is used to cool the car turned on, which drained some energy, like the window, and made the car shake

What do you guys think?
Opinions/Suggestions.
-Jon

 

possibly bad alternator, but I don't know much about the electrical system.

 

My 92 DX is doing something similar, but no shaking. When the cooling fan clicks on, my dash lights dim just a bit. The fan also squeels a bit, so i'm guessing the bearings are going and it's harder to turn so it's pulling more power to turn it. A new fan would seem to be the easy fix.

Though with what you describe, it would seem to be a problem with the alternator. Does it just shake at idle, or anytime you use an accessory at any speed?


[Modified by tardis, 4:03 AM 12/28/2002]

 

change your altenator

 

does it shake while driving? at idle? my car shakes a lil too when stopped at idle and when i use the windows or ac. for me, getting on the gas a lil to bring the revs up and it would stop shaking.

 

nah, i recently did the motor mounts, and it didnt help, yeah, it occurs only at idle, if i raise my rpms it dies down to... im guessing alternator, but im not sure, i kneed more suggestions, maybe battery?

How much do alternators run, 50-60 bucks?

-Jon

 

Definitely your alternator if it's at idle. Change it. I guess it's a little more than 60 bucks. I had a rebuilt put on last summer an it cost over 200$

 

Is it a five speed or and auto?

 

well, that would put a draw on your engine and cause the rpms to be slightly lower (using power). Your idle should compensate for that though after about a second or 2. If anything it'd be your alternator not putting out enough power, DEFINATELY not your battery. common misconception, your battery shouldnt' be doing anything except being charged when your car is running. if you are drawing current from the battery that means your alternator isn't putting out enough current to supply your car with what it needs.

 

and i have an auto, can anyone direct to somewhere online to buy and alternator?

-Jon

 

Have you checked the operation of your rear motor mount? It's vacumn operated.
Have someone hold it in gear and disconect the vacumn soleniod connector. If the system is working, the vibration should be worse with it disconnected. I doubt the problem is with your alternator.

 

i actually replaced the rear motor mount.

 

Yea, i saw that in one of your earlier posts. So did you you check to make sure it's working?

 

guh... no not really... so if i do your test, would that mean i kneed to install a new one? or just get a soleniod?

-Jon

 

That test is just to see if it is working or not.

 

where is the soleniod connector?

-Jon

 

Where is the soleniod connector? Up by the pcv valve?

 

On the soleniod. Follow the vacumn line up from the mount, it goes right to it.