I have an '01 with 46,000 miles and the engine has a vibration. It can be felt between 30-40 mph, under light to moderate acceleration and in park or neutral at around 2,000 rpms. The motor sounds like it's running fine (not skipping). My only thought is, that I might have lost a weight off the fly wheel or torque converter. Anyone heard of this problem or have any ideas?

Thanks, Grinder

 

Anyone?

 

Could be a fouling plug. Good place to start. Pull each plug and look at it. If there is any build up on any one of them, change the plug. Could also be a vacuum leak. Inspect your vacuum hoses. Look for cracks, or worn areas.

 

Thanks for the reply. The plugs are good. The motor seems to be running smooth, I'll check the vacuum lines, anyway. My mechanic couldn't find a problem with the motor or tranny mounts. Any other ideas?

 

Even though your car only has 46k miles on it, it could also be a motor mount or a loose torque coverter. If you are a second owner, you never know how some idiot driver worked it over. IE: Reversing fast and slamming the trany into drive, reving in neutral and slamming it into drive, etc. A good way to check your torque converter is to park on a flat surface and put the trans in neutral. Then put the e-brake on and slowly go to reverse, then neutral, then drive, then neutral, then reverse letting the trany ingage each time. repeat this procedure and listen to the trany. if you have a hesitation more than normal and a very noticeable clunking sound, it is a loose torque converter. The clunking can also be U-joints, but you said the vibration happens even in park, so I'm just focusing on that right now.

I read that V6 Mustangs are one of the most popular rental cars in the U.S. and they turn them over to used car lots before they hit 20K miles. I can't remember what the percentage was, but I remember it was really high that if you buy a V6 from a used car company, it's something like 75% chance it was from a car rental agency.

 

Thanks for the responce. I am the second owner and thankfully, it wasn't a rental car. Based on the scapes on the bottom of the cross member and on the a-arms, the kid that owned it wasn't the best driver. Initialy, I suspected the u-joint but, discovered that the vibration was there, while in park. I'll check the torque converter though, I don't remember anything weird. Thanks for the suggestions, Grinder

 

I don't care how careful you are, the bottom of a stang is going to get scraped up. Even before I lowered mine, I'd hit a dip or whatever and scrape. I will say, our Stangs seem to be pretty strong underneath. [sm=smiley20.gif]

 

Yeah, I know what you mean but, there are scrapes on the bottom of the a-arms, out near the ball joints. The kid hit some serious pot holes or something. Anyway, I checked the tranny, it engages smoothly, no clunks or anything weird. I checked the vacuum lines, as best I could, didn't see a problem. Sounds like I might have a slight exhaust manifold leak but, I don't think that has anything to do with the problem. I think I'll have to take it in to the Ford dealer and see what they think. Thanks for the suggestions, Grinder