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Why am i having an acceleration issue?
1994 Ford Explorer

Why am I having an acceleration issue?

(1994 Ford Explorer)
The truck runs fine for the most part, except the check engine light is on and when I accelerate, it stalls. If going on the freeway I have to ease it to go faster (getting it to 60mph is a slow process) and the RPM shoots to 5 or 6 when I try to speed up, especially on the freeway.

I just had an oil change last month, so I don't think that has anything to do with it.
What seems to make the problem better or worse? trying to gain speed
How long have you had this problem? since I bought it 2 months ago
Tags: check engine light on, acceleration problem, rpm shoots to 5 or 6 whe, ford, explorer
2 answers & 0 comments
Popular Answer
on June 07, 2019

Best route to select here is having an experienced mechanic test drive the vehicle.

There are simply too many possibilities that can cause your concerns for online guesswork.

Posting a list of these possibilities is not beneficial at all.

Good luck!
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Check Engine Light Diagnosis
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on June 07, 2019

Best route to select here is having an experienced mechanic test drive the vehicle.

There are simply too many possibilities that can cause your concerns for online guesswork.

Posting a list of these possibilities is not beneficial at all.

Good luck!
Sign in to reply
on June 07, 2019
In addition to Pushrod's answer, this vehicle has an A4LD automatic transmission. The internal mechanical and hydraulic components of the transmission are all that can possibly influence an RPM flare like that -- as there are no electronic controls for this transmission. The shift points are regulated by throttle input and engine vacuum through a vacuum modulator. It seems like the vehicle could be losing gear engagement at some point, and at other points may be in the incorrect gear causing a lack of acceleration.

And all of this is likely unrelated to a check engine light on a vehicle of this vintage.

Hands on testing from a veteran technician who was familiar with these vehicles 25+ years ago would be best.
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