Hesitant acceleration after stopping at a light

bradleyheathhays

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'96 XJ w/ 186k miles here and I'm just starting to get a short hesitation to accelerate after say stopping at a stop light. It's only happening at like maybe one out of every 40 stops or so but it's getting frequent enough that I'm guessing it's gonna get worse over time.

Typical behavior for my XJ is to starting rolling forward by itself after I let off the brake, even before hitting the gas. It does that 100% of the time. What I'm seeing now though is that sometimes when I let off the brake it just sits there until I hit the gas. Most of the time it starts going soon as the gas pedal is pushed. But other times it will hesitate for a second and something will clink and it'll lurch a little as if it's just going into gear.

Sound familiar? Hope so.

Problem is it's not doing this often enough to show to a mechanic, but I know it's gonna have to be addressed at some point.

What does this sound like and how can I start investigating this?
 

ZEN357

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To start with the simplest fix, How long has it been since the Spark plugs were replaced?
 

strongman

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Let's check the basics first and see if it is just because of lack of fluid but if not I'm guessing you have a leak on your hose on brake boosters
 

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