1999 Chrysler LHS knocking vibration, hard to start

SHERILYNVG

MEMBER
1999 CHRYSLER LHS
6 CYL
FWD
AUTOMATIC
110,000 MILES

1. If I put my foot on the break (at a stop light) or if I'm in park something creates a loud knocking vibration (does it a few times a day but not "all" the time). Sounds like a metal box is in a little bigger metal box and someone's shaking it. If you turn the car off for a couple minutes it stops. 2. Also, it never starts on the first try. It takes 2 or 3 tries. It does that every time in the warm months, not as often in the winter. 3. Once a week or so when I back out of the garage and put it in drive it won't move for 1-2 minutes, then it kicks into gear. ANY ADVICE WOULD BE GREATLY APPRECIATED!

1 Reply

MICHAEL7500

MEMBER
25 POSTS

I remember my dad said that his old 1970s Chrysler Baracuda used to have some kind of problem with something that had a crack. I forget exactly what it was but I'm pretty sure it was a cylinder that had a tiny crack in it. That might be the problem with your car since if it's a tiny crack, then in summer it probably expands some and become noticable, (making the car hard to start) and in winter when it contracts it's no longer noticable. If your car runs worse in summer than winter then I would say this is a bigger possibility. And that might be what the sound is when you're at a light. I'm thinking that because it stops when the car is off for a few minutes (enough time for the cylinder to cool and the crack to condense again?) About your third thing, I have no idea unfortunately (other than maybe you're low on transmission fluid). Anyway, if you think my advice is right about the crack, first you ought to ask a mechanic before you have them check because I don't really know if I'm anywhere near correct. (It's just an educated guess)