Originally Posted by colo2784
hello everyone, my car is a Thunderbird 1995 4600 cc V8, my trouble is when i go slowly my car start to shaking but when thats happen i accelerated the car and goes away, that shaking only happens when i go slowly, what could be?
It could be a number of things.
Before I get into what it COULD be, answer me a few questions
When's the last time you changed your plugs/wires/oil/and any and all filters?
What RPM range does it shudder at?
Have you tried cleaning the MAF sensor? (note to only do it with electrical contact spray or MAF cleaner)
When is the last time you had the EGR valve changed/hoses to the EGR cleaned out?
Do you have any vacuum lines off?
What grade fuel do you run in your bird?
Is it a left to right shudder (steering/alignment) or is it a front/back shuddering (trans jerking)?
A lot of times, in the transition of gears 3-4, if you are still running the factory recommended Mercon Trans fluid, it will shudder. Otherwise, I'd recommend draining all the trans fluid (even out of the Torque converter) and refilling it to Mercon V. Ford had that in a service bulletin some odd years ago to change over and then not, and then TO change over.
The reason for them saying NOT to do it is they were afraid the Mercon V would eat up some of the seals. As that is not the case anymore, I recommend changing it over.
Other than the Fluid, EGR and possibly a clogged exhaust setup, I dunno. Take a vid of it, and send us a link and we can more properly diagnose your problem.
Just curious, but what gear does it tend to shudder in?