Why my car shaking when it changes gears?
25

Asked by GaBoy86 Feb 06, 2016 at 03:44 PM about the 1998 Mercury Grand Marquis 4 Dr LS Sedan

Question type: Maintenance & Repair

I have a grand marquis 1998 with about 169,000
miles. It uses to shake bad when it changes gears
before I replaced my oil gasket that had my
number 4 spark plug covered in oil. After I got my
oil gasket put on, the shaking had stopped. Car
running good for about a week or two with no
shaking. Now out the blue it shakes from time to
time when it's going in 2nd or 3rd gear. My car runs
great it just have that bad shake when changing
gears. What may stop my car from shaking when
changing gears?

4 Answers
70,895

Kelly answered 8 years ago

IF THAT PLUG MISS FIRES..REPLACE IT WITH ONE 2 HEAT RANGES HOTTOR....

Best Answer Mark helpful
25

GaBoy86 answered 8 years ago

So when my car shakes, is that what you call a miss fires? And what is a heat ranger hottor?

Mark helpful

Rami3522 answered 4 years ago

Hello I have same this problem. First time it replace all part of gear and still nothing change. I changed all sparks plugs Kelly can you tell me what you mean by (REPLACE IT WITH ONE 2 HEAT RANGES HOTTOR....) ? Can you name this part? Thanks

Mark helpful

louis answered 4 years ago

i have same problem, 1998 mercury marquis, 158k shakes violently now, was just every once in awhile. feels like i'm driving on rumble strips. only when accelerating it would do it between 14 to 30 mph i thought it was tranny but i don't think it is. could it be a u joint. really like this car it is my second car i use away from home.

Mark helpful

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