summerstang95
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- Joined
- Jul 31, 2019
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I have a 95 Mustang 5.0 auto with 31k all stock. After about a half hour of driving the car will surge between 500 to 1500 up in rpms. It only does it for about a second or two. Speed of the car stays the same. It does it when the O/D is off or on. Only does it when driving at a steady speed between 35 to 60 and after approximately a half hour of driving. It did it about three times on an hour drive during the day and on the way back, at night, didn't do it at all.
I have gone through thousands of post.
I have change the EGR, TPS, cleaned the ACI, did a smoke test, reset computer, new fuel pump, new fuel filter.
The car idles great, drives great, lots of power, just has this issue when driving at cruising speed.
I'm starting to think the transmission is going. It might be getting too warm and then does the surging. Could the transmission oil be bad? Is there a sensor on the transmission that could be bad? The shop I took it to had no idea why it's surging.
Any help would be appreciated.
I have gone through thousands of post.
I have change the EGR, TPS, cleaned the ACI, did a smoke test, reset computer, new fuel pump, new fuel filter.
The car idles great, drives great, lots of power, just has this issue when driving at cruising speed.
I'm starting to think the transmission is going. It might be getting too warm and then does the surging. Could the transmission oil be bad? Is there a sensor on the transmission that could be bad? The shop I took it to had no idea why it's surging.
Any help would be appreciated.